{"id":2407,"date":"2025-12-09T14:15:02","date_gmt":"2025-12-09T06:15:02","guid":{"rendered":"https:\/\/sj-gauge.com\/?p=2407"},"modified":"2026-07-17T13:13:57","modified_gmt":"2026-07-17T05:13:57","slug":"thread-standards-identification","status":"publish","type":"post","link":"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/","title":{"rendered":"Introducci\u00f3n a los est\u00e1ndares de rosca de uso frecuente en instrumentos industriales: \u00a1Cuatro pasos para identificar las especificaciones de la rosca!"},"content":{"rendered":"<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>\u00bfLe resultan confusos t\u00e9rminos del sector como &quot;rosca&quot;, &quot;rosca de tornillo&quot;, &quot;conexi\u00f3n&quot; o &quot;accesorio&quot;, as\u00ed como la amplia gama de especificaciones disponibles?<\/strong><\/p>\n\n\n\n<p>SJ Gauge ofrece cuatro tipos principales de conexiones roscadas: NPT, PT, G y M. \u00bfSe pregunta qu\u00e9 opci\u00f3n se adapta mejor a los requisitos espec\u00edficos de su aplicaci\u00f3n? En el siguiente art\u00edculo, le ofreceremos una introducci\u00f3n detallada a estos tipos de rosca de uso exclusivo de mm. Si tiene curiosidad por conocer las diferencias entre ellos, siga leyendo. Si lo prefiere, no dude en ponerse en contacto con nuestro equipo profesional de ventas: estaremos encantados de recommenderle la soluci\u00f3n de medici\u00f3n personalizada m\u00e1s adecuada para su aplicaci\u00f3n.<\/p>\n<\/blockquote>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndice<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Alternar tabla de contenidos\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #7b1e1c;color:#7b1e1c\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #7b1e1c;color:#7b1e1c\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/#1-what-is-a-thread-what-is-its-function\" >1. \u00bfQu\u00e9 es un hilo? \u00bfCu\u00e1l es su funci\u00f3n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/#2-what-problems-can-occur-if-the-wrong-thread-type-is-used\" >2. \u00bfQu\u00e9 problemas pueden surgir si se utiliza un tipo de rosca incorrecto?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/#3-two-essential-measurement-tools-you-must-know-before-selecting-threads\" >3. Dos herramientas de medici\u00f3n esenciales que debe conocer antes de seleccionar los hilos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/#4-identifying-threads-in-four-simple-steps\" >4. Identificaci\u00f3n de hilos en cuatro sencillos pasos<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.sj-gauge.com\/es\/thread-standards-identification\/#5-four-steps-to-identify-thread-specifications\" >5. Cuatro pasos para identificar las especificaciones de la rosca<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-60a6e82b1b17efd4e0d6a39a4129c216\" id=\"h-1-what-is-a-thread-what-is-its-function\"><span class=\"ez-toc-section\" id=\"1-what-is-a-thread-what-is-its-function\"><\/span>1. \u00bfQu\u00e9 es un hilo? \u00bfCu\u00e1l es su funci\u00f3n?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Una rosca, tambi\u00e9n commnicamente denominada conexi\u00f3n o racor, es la interfaz utilizada para conectar un man\u00f3metro a una fuente de presi\u00f3n. Consta de una rosca macho (rosca exterior) y una rosca hembra (rosca interior), que se aprietan entre s\u00ed para formar una conexi\u00f3n segura.<\/p>\n\n\n\n<p>La funci\u00f3n principal de una rosca es garantizar que la presi\u00f3n o el medio puedan transmitirse desde la fuente de presi\u00f3n hasta el man\u00f3metro en condiciones completamente estancas. En algunos casos, se utilizan accesorios de sellado adicionales, como cinta de PTFE, juntas t\u00f3ricas o juntas, para mejorar el rendimiento del sellado.<\/p>\n\n\n\n<p>Por lo tanto, al seleccionar un tama\u00f1o de rosca, es esencial garantizar la compatibilidad con la conexi\u00f3n del instrumento correspondiente. Cuando se adquieren instrumentos como man\u00f3metros o term\u00f3metros, tambi\u00e9n es recommendiente facilitar de antemano al proveedor las especificaciones de rosca requeridas.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-8 wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px\">\n<figure class=\"wp-block-image size-thumbnail has-custom-border is-style-default\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img decoding=\"async\" width=\"92\" height=\"150\" data-id=\"2408\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/PT\u516b\u5206\u4e4b\u4e00-92x150.png\" alt=\"\" class=\"wp-image-2408\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">PT 1\/8<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img decoding=\"async\" width=\"90\" height=\"150\" data-id=\"2409\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/PT\u56db\u5206\u4e4b\u4e0019\u7259-90x150.png\" alt=\"\" class=\"wp-image-2409\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">PT 1\/4<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img decoding=\"async\" width=\"114\" height=\"150\" data-id=\"2410\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/PT\u516b\u5206\u4e4b\u4e09-114x150.png\" alt=\"\" class=\"wp-image-2410\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">PT 3\/8<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"150\" data-id=\"2411\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/PT\u4e8c\u5206\u4e4b\u4e00-116x150.png\" alt=\"\" class=\"wp-image-2411\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">PT 1\/2<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"93\" height=\"150\" data-id=\"2412\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/\u7f8e\u5236\u5341\u516d\u5206\u4e4b\u4e03-93x150.png\" alt=\"\" class=\"wp-image-2412\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">UNF 7\/16<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"105\" height=\"150\" data-id=\"2413\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/NPT\u56db\u5206\u4e4b\u4e0018\u7259-105x150.png\" alt=\"\" class=\"wp-image-2413\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">NPT 1\/4<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"150\" data-id=\"2415\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/NPT\u516b\u5206\u4e4b\u4e09-116x150.png\" alt=\"\" class=\"wp-image-2415\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">NPT 3\/8<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-right:0;margin-bottom:var(--wp--preset--spacing--80);margin-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"115\" height=\"150\" data-id=\"2416\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/NPT\u4e8c\u5206\u4e4b\u4e00-115x150.png\" alt=\"\" class=\"wp-image-2416\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">NPT 1\/2<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"91\" height=\"150\" data-id=\"2419\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/G\u56db\u5206\u4e4b\u4e0019\u7259-91x150.png\" alt=\"\" class=\"wp-image-2419\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">G 1\/4<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"100\" height=\"150\" data-id=\"2420\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/G\u516b\u5206\u4e4b\u4e09-100x150.png\" alt=\"\" class=\"wp-image-2420\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">G 3\/8<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"150\" data-id=\"2421\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/G\u4e8c\u5206\u4e4b\u4e00-116x150.png\" alt=\"\" class=\"wp-image-2421\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">G 1\/2<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"150\" data-id=\"2422\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/M10x1-84x150.png\" alt=\"\" class=\"wp-image-2422\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">M 10*1<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"91\" height=\"150\" data-id=\"2423\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/M12x1.5-91x150.png\" alt=\"\" class=\"wp-image-2423\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">M 12*1.5<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"93\" height=\"150\" data-id=\"2424\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/M14x1.5-93x150.png\" alt=\"\" class=\"wp-image-2424\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">M 14*1.5<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-right:0;margin-bottom:var(--wp--preset--spacing--80);margin-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"150\" data-id=\"2425\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/M16x1.5-1-86x150.png\" alt=\"\" class=\"wp-image-2425\" style=\"border-style:none;border-width:0px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">M 16*1.5<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--80);margin-bottom:var(--wp--preset--spacing--80)\"><img loading=\"lazy\" decoding=\"async\" width=\"109\" height=\"150\" data-id=\"2426\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/M20x1.5-109x150.png\" alt=\"\" class=\"wp-image-2426\" style=\"border-style:none;border-width:0px;aspect-ratio:9\/16\"\/><figcaption class=\"wp-element-caption\">M 20*1.5<\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-e6d4c9f5365a519eea70d069d7a5d426\" id=\"h-2-what-problems-can-occur-if-the-wrong-thread-type-is-used\"><span class=\"ez-toc-section\" id=\"2-what-problems-can-occur-if-the-wrong-thread-type-is-used\"><\/span>2. \u00bfQu\u00e9 problemas pueden surgir si se utiliza un tipo de rosca incorrecto?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Antes de confirmar el tipo de conexi\u00f3n de rosca correcto, no intente conectar la rosca a su instrumento. Si lo hace, podr\u00eda da\u00f1ar el instrumento, provocar paradas de producci\u00f3n e incluso reducir la eficiencia operativa o p\u00e9rdidas econ\u00f3micas.<br>Adem\u00e1s, la inspecci\u00f3n visual por s\u00ed sola no es suficiente para determinar con precisi\u00f3n si un tipo de conexi\u00f3n roscada es correcto.<\/p>\n\n\n\n<p><strong>\u00bfPor qu\u00e9 es importante identificar el tipo de hilo correcto?<\/strong><\/p>\n\n\n\n<p>Al intentar conectar dos tipos de rosca diferentes, las diferencias de paso o di\u00e1metro pueden impedir un acoplamiento correcto, imposibilitando el apriete completo de la conexi\u00f3n. Si se intenta forzar la instalaci\u00f3n, se puede producir una deformaci\u00f3n del \u00e1ngulo de la rosca, jamming o un agarrotamiento completo. Incluso si la conexi\u00f3n se retira posteriormente de la tuber\u00eda, puede que ya no se consiga un sellado adecuado.<\/p>\n\n\n\n<p>Estos problemas pueden provocar fugas de medios, contaminaci\u00f3n o fallos en los equipos. Afortunadamente, si se identifica correctamente el tipo de rosca adecuado, estos riesgos pueden reducirse considerablemente.<\/p>\n\n\n\n<p>En la siguiente secci\u00f3n, SJ Gauge le guiar\u00e1 a trav\u00e9s de los diferentes tipos de hilo y c\u00f3mo medirlos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color\" id=\"h-3-two-essential-measurement-tools-you-must-know-before-selecting-threads\"><span class=\"ez-toc-section\" id=\"3-two-essential-measurement-tools-you-must-know-before-selecting-threads\"><\/span>3. Dos herramientas de medici\u00f3n esenciales que debe conocer antes de seleccionar los hilos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-a-vernier-caliper\">a. <strong>Calibre Vernier<\/strong><\/h3>\n\n\n\n<p>Un calibre Vernier, tambi\u00e9n denominado \u00abpie de rey\u00bb o calibre deslizante, es un instrumento de medici\u00f3n industrial ampliamente utilizado para medir longitudes, di\u00e1metros interiores y exteriores, y profundidades. Consta de una escala principal y un nonio deslizante que se desplaza a lo largo del cuerpo.<\/p>\n\n\n\n<p>La escala principal suele estar graduada en mil\u00edmetros. Seg\u00fan la divisi\u00f3n del nonio, los calibres Vernier se clasifican en modelos de 10, 20 o 50 divisiones, con resoluciones habituales de 0,1 mm, 0,05 mm y 0,02 mm, respectivamente.<\/p>\n\n\n\n<p>En la actualidad existen distintos tipos de calibres Vernier. Adem\u00e1s del modelo mec\u00e1nico tradicional mostrado anteriormente, tambi\u00e9n hay calibres de reloj, con indicador anal\u00f3gico, y calibres digitales con pantalla LCD.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"801\" height=\"534\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/3-XX.jpg\" alt=\"\" class=\"wp-image-2427\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/3-XX.jpg 801w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/3-XX-300x200.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/3-XX-768x512.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/3-XX-600x400.jpg 600w\" sizes=\"(max-width: 801px) 100vw, 801px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b-thread-pitch-gauge\">b. Calibre de paso de rosca<\/h3>\n\n\n\n<p>Un calibre de paso de rosca, tambi\u00e9n conocido como \u201ccalibre de paso de tornillo\u201d o \u201ccalibre de rosca\u201d, se utiliza para ayudar a medir las especificaciones de la rosca. Haciendo coincidir los dientes del calibre con el perfil de la rosca y encontrando el ajuste perfecto, los usuarios pueden identificar el paso de rosca correcto.<\/p>\n\n\n\n<p>Las normas de rosca m\u00e1s utilizadas en el mercado corresponden a los sistemas estadounidense (imperial), brit\u00e1nico y m\u00e9trico, cada uno con sus propias especificaciones.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"920\" height=\"464\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/1-XX.jpg\" alt=\"\" class=\"wp-image-2428\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/1-XX.jpg 920w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/1-XX-300x151.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/1-XX-768x387.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/1-XX-600x303.jpg 600w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-1ba7160b8449ca63db49d8f0224f718d\" id=\"h-4-identifying-threads-in-four-simple-steps\"><span class=\"ez-toc-section\" id=\"4-identifying-threads-in-four-simple-steps\"><\/span>4. Identificaci\u00f3n de hilos en cuatro sencillos pasos<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-a-determine-whether-the-thread-is-parallel-or-tapered\">a. Determinar si la rosca es paralela o c\u00f3nica<\/h3>\n\n\n\n<p>Los hilos pueden clasificarse como <strong>paralelas (rectas)<\/strong> o <strong>c\u00f3nicas.<\/strong>Si el di\u00e1metro de la rosca aumenta o disminuye gradualmente a lo largo de su longitud, se trata de una rosca c\u00f3nica. Si el di\u00e1metro permanece constante, se trata de una rosca paralela.<\/p>\n\n\n\n<p>Si resulta dif\u00edcil distinguirlo visualmente, se puede utilizar un calibre vernier como ayuda. Basta con medir ambos extremos de la rosca y observar la separaci\u00f3n o alineaci\u00f3n. Si aparece una separaci\u00f3n triangular (que indica lados no paralelos), se trata de una rosca c\u00f3nica. Si ambos lados permanecen paralelos sin separaci\u00f3n visible, se trata de una rosca paralela.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"724\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/05\/\u6280\u8853\u7814\u8a0e06EN-1-1024x724.jpg\" alt=\"\" class=\"wp-image-4435\" style=\"width:500px\" srcset=\"\" sizes=\"(max-width: 1024px) 100vw, 1024px\" data-srcset=\"\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-b-determine-the-type-of-thread-and-pitch\">b. Determinar el tipo de rosca y el paso<\/h3>\n\n\n\n<p>Las especificaciones de las roscas se miden normalmente utilizando est\u00e1ndares ampliamente utilizados, como por ejemplo: <strong>Americano (NPT\/UN), brit\u00e1nico (BSP) y m\u00e9trico (M)<\/strong> sistemas. El tipo de rosca correcto se identifica haciendo coincidir el calibre de rosca que proporciona el mejor ajuste.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1754\" height=\"1240\" src=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge.jpg\" alt=\"\" class=\"wp-image-4464\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge.jpg 1754w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-300x212.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-1024x724.jpg 1024w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-768x543.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-1536x1086.jpg 1536w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-18x12.jpg 18w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/SJ-Gauge-screw-pitch-gauge-600x424.jpg 600w\" sizes=\"(max-width: 1754px) 100vw, 1754px\" \/><\/figure>\n\n\n\n<p>Hay dos formas principales de expresar el paso de rosca:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sistema m\u00e9trico:<\/strong> Mide la distancia entre dos picos de hilo adyacentes<br>(por ejemplo, la distancia entre picos es de 1,5 mm)<\/li>\n\n\n\n<li><strong>Sistema imperial \/ brit\u00e1nico:<\/strong> Mide el n\u00famero de hilos por pulgada (TPI)<br>(por ejemplo, 14 hilos por pulgada)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"842\" height=\"595\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/luoya2.jpg\" alt=\"\" class=\"wp-image-2431\" style=\"width:500px\" srcset=\"https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/luoya2.jpg 842w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/luoya2-300x212.jpg 300w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/luoya2-768x543.jpg 768w, https:\/\/www.sj-gauge.com\/wp-content\/uploads\/2025\/12\/luoya2-600x424.jpg 600w\" sizes=\"(max-width: 842px) 100vw, 842px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-c-determine-the-size-of-the-connector\">c. Determinar el tama\u00f1o del conector<\/h3>\n\n\n\n<p>Utilice un calibre de vernier para medir el di\u00e1metro exterior de la rosca sujetando ambos extremos de la misma. Esto proporcionar\u00e1 un valor aproximado del tama\u00f1o del racor. A continuaci\u00f3n, compare el valor medido con la tabla de referencia siguiente para identificar el tama\u00f1o correspondiente m\u00e1s pr\u00f3ximo.<\/p>\n\n\n\n<p>Tambi\u00e9n se incluyen, a modo de referencia, los t\u00e9rminos industriales m\u00e1s utilizados para referirse a los tama\u00f1os de rosca:<\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-style-default\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Contexto de Taiw\u00e1n<\/strong><\/th><th>Tama\u00f1o de la rosca<\/th><th>Di\u00e1metro exterior (mm)<\/th><\/tr><\/thead><tbody><tr><td>Un octavo<\/td><td>1\/8<\/td><td>9.7 - 10.3<\/td><\/tr><tr><td>Cuarto<\/td><td>1\/4<\/td><td>13.1 - 13.6<\/td><\/tr><tr><td>Tres octavos<\/td><td>3\/8<\/td><td>16.6 - 17.1<\/td><\/tr><tr><td>Medio<\/td><td>1\/2<\/td><td>20.9 - 21.3<\/td><\/tr><tr><td>Tres cuartos<\/td><td>3\/4<\/td><td>26.4 - 26.6<\/td><\/tr><\/tbody><\/table><figcaption>Tabla de referencia de tama\u00f1os de rosca de uso frecuente<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"445\" src=\"https:\/\/sj-gauge.com\/wp-content\/uploads\/2025\/12\/4-3_\u5c3a\u5bf8.png\" alt=\"\" class=\"wp-image-2432\" style=\"width:500px\" srcset=\"\" sizes=\"(max-width: 964px) 100vw, 964px\" data-srcset=\"\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-d-compare-with-thread-standards-type-pitch-size\">d. Comparaci\u00f3n con las normas de rosca (tipo \/ paso \/ tama\u00f1o)<\/h3>\n\n\n\n<p>Puede consultar la informaci\u00f3n y las tablas siguientes para identificar los tipos de rosca m\u00e1s utilizados, entre ellos: <strong>Normas americanas, brit\u00e1nicas y m\u00e9tricas<\/strong>, comparando la forma de la rosca (paralela\/c\u00f3nica), el paso y el tama\u00f1o.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-d-1-american-standard-straight-threads-sae-un-unf\">d-1. <strong>Roscas rectas seg\u00fan norma estadounidense (SAE = UN = UNF)<\/strong><\/h4>\n\n\n\n<p>La forma de rosca recta m\u00e1s utilizada en Estados Unidos es la <strong>rosca UN\/UNF (Unified National Fine)<\/strong>, tambi\u00e9n denominada <strong>rosca SAE (Society of Automotive Engineers).<\/strong>\u00a0La tabla siguiente recoge varios tama\u00f1os de rosca recta SAE de uso habitual.<br>El formato de designaci\u00f3n est\u00e1ndar para las roscas rectas americanas es:<br><strong>Tama\u00f1o - Roscas por pulgada - Serie<\/strong><br>Por ejemplo: <strong>3\/4-16 UN\/UNF<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\">Roscas rectas seg\u00fan norma estadounidense<br>SAE=UN=UNF<\/td><\/tr><tr><td rowspan=\"2\">Tama\u00f1o de la rosca<\/td><td rowspan=\"2\">Hilos por pulgada<br>(TPI)<\/td><td colspan=\"3\">Di\u00e1metro de la rosca<br>(mm)<\/td><td rowspan=\"2\">\u00c1ngulo de rosca<\/td><\/tr><tr><td>Di\u00e1metro mayor<\/td><td>Di\u00e1metro de paso simple<\/td><td>Di\u00e1metro menor<\/td><\/tr><tr><td>5\/16<\/td><td>24<\/td><td>7.938<\/td><td>7.249<\/td><td>6.792<\/td><td rowspan=\"7\">60\u00b0<\/td><\/tr><tr><td>7\/16<\/td><td>20<\/td><td>11.113<\/td><td>10.287<\/td><td>9.738<\/td><\/tr><tr><td>1\/2<\/td><td>20<\/td><td>12.7<\/td><td>11.875<\/td><td>11.325<\/td><\/tr><tr><td>9\/16<\/td><td>18<\/td><td>14.288<\/td><td>13.325<\/td><td>12.559<\/td><\/tr><tr><td>3\/4<\/td><td>16<\/td><td>19.05<\/td><td>18.019<\/td><td>17.331<\/td><\/tr><tr><td>1-1\/16<\/td><td>12<\/td><td>26.988<\/td><td>25.613<\/td><td>24.695<\/td><\/tr><tr><td>1-5\/16<\/td><td>12<\/td><td>33.338<\/td><td>31.963<\/td><td>31.046<\/td><\/tr><tr><td colspan=\"6\">Tama\u00f1o-TPI-Serie<br>p. ej. 3\/4-16 UN\/UNF<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-d-2-american-tapered-threads-npt-nptf\">d-2. Roscas c\u00f3nicas americanas (NPT \/ NPTF)<\/h4>\n\n\n\n<p>Las roscas NPT (National Pipe Taper), formalmente conocidas como American National Standard Taper Pipe Threads, son uno de los est\u00e1ndares de rosca c\u00f3nica m\u00e1s commamente utilizados en Estados Unidos.<\/p>\n\n\n\n<p>Las roscas NPTF (Dryseal) son la variante de sellado en seco de las roscas c\u00f3nicas estadounidenses para tuber\u00edas. Est\u00e1n dise\u00f1adas para proporcionar un sellado metal-metal m\u00e1s herm\u00e9tico sin materiales de sellado adicionales. Aunque la National Fluid Power Association (NFPA) no las recomienda para todas las aplicaciones hidr\u00e1ulicas, siguen utiliz\u00e1ndose ampliamente en la industria.<\/p>\n\n\n\n<p>La principal diferencia entre las roscas NPT y NPTF radica en el dise\u00f1o de la cresta y la ra\u00edz de la rosca. Las roscas NPT no forman un sellado perfecto metal-metal en la cresta, lo que puede provocar peque\u00f1as fugas tras el montaje. Por lo tanto, normalmente se requieren materiales de sellado como cinta de PTFE o sellador. Por el contrario, las roscas NPTF est\u00e1n dise\u00f1adas para lograr un \u201csellado en seco\u201d mediante una interferencia controlada.<\/p>\n\n\n\n<p><strong>Formato de designaci\u00f3n:<\/strong><br>Tama\u00f1o - Roscas por pulgada - Serie<br>Por ejemplo, <strong>1\/4-18 NPT<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\"><strong>Roscas c\u00f3nicas seg\u00fan norma estadounidense<\/strong><br><strong>NPT \/ NPTF<\/strong><\/td><\/tr><tr><td rowspan=\"2\">Tama\u00f1o de la rosca<\/td><td rowspan=\"2\">Hilos por pulgada<br>(TPI)<\/td><td colspan=\"3\">Di\u00e1metro de la rosca<br>(mm)<\/td><td rowspan=\"2\">\u00c1ngulo de rosca<\/td><\/tr><tr><td>Di\u00e1metro mayor<\/td><td>Di\u00e1metro de paso simple<\/td><td>Di\u00e1metro menor<\/td><\/tr><tr><td>1\/16<\/td><td>27<\/td><td>7.894<\/td><td>7.142<\/td><td>6.398<\/td><td rowspan=\"10\">60\u00b0<\/td><\/tr><tr><td>1\/8<\/td><td>27<\/td><td>10.242<\/td><td>9.489<\/td><td>8.737<\/td><\/tr><tr><td>1\/4<\/td><td>18<\/td><td>13.616<\/td><td>12.487<\/td><td>11.358<\/td><\/tr><tr><td>3\/8<\/td><td>18<\/td><td>17.055<\/td><td>15.926<\/td><td>14.797<\/td><\/tr><tr><td>1\/2<\/td><td>14<\/td><td>21.224<\/td><td>19.772<\/td><td>18.321<\/td><\/tr><tr><td>3\/4<\/td><td>14<\/td><td>26.569<\/td><td>25.117<\/td><td>23.666<\/td><\/tr><tr><td>1<\/td><td>11.5<\/td><td>33.228<\/td><td>31.461<\/td><td>29.694<\/td><\/tr><tr><td>1-1\/4<\/td><td>11.5<\/td><td>41.985<\/td><td>40.218<\/td><td>38.454<\/td><\/tr><tr><td>1-1\/2<\/td><td>11<\/td><td>48.054<\/td><td>46.287<\/td><td>44.52<\/td><\/tr><tr><td>2<\/td><td>11<\/td><td>60.092<\/td><td>58.325<\/td><td>56.558<\/td><\/tr><tr><td colspan=\"6\">Tama\u00f1o-TPI-Serie<br>p. ej. 1\/4-18 NPT<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-d-3-british-straight-threads-bspp-bsp-pf-g\">d-3. Roscas rectas brit\u00e1nicas (BSPP = BSP = PF = G)<\/h4>\n\n\n\n<p>Las normas brit\u00e1nicas sobre roscas son establecidas por la British Standards Institution (BSI). Los nombres m\u00e1s comunes para las roscas rectas brit\u00e1nicas son rosca G, BSPP (British Standard Pipe Parallel), BSPM y BSP.<\/p>\n\n\n\n<p>El t\u00e9rmino BSPF (British Standard Pipe Fitting) es una denominaci\u00f3n m\u00e1s antigua para las roscas BSPP. Se introdujo para reducir la confusi\u00f3n entre BSPP (roscas paralelas) y BSPT (roscas c\u00f3nicas) en el uso anterior.<\/p>\n\n\n\n<p><strong>Formato de designaci\u00f3n:<\/strong><br><strong>Serie-Tama\u00f1o-Hilos por pulgada (TPI)<\/strong><br>Por ejemplo, <strong>G 1\/8-28<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\">Roscas paralelas est\u00e1ndar brit\u00e1nicas<br>BSPP=BSP=PF=G<\/td><\/tr><tr><td rowspan=\"2\">Tama\u00f1o de la rosca<\/td><td rowspan=\"2\">Hilos por pulgada<br>(TPI)<\/td><td colspan=\"3\">Di\u00e1metro de la rosca<br>(mm)<\/td><td rowspan=\"2\">\u00c1ngulo de rosca<\/td><\/tr><tr><td>Di\u00e1metro mayor<\/td><td>Di\u00e1metro de paso simple<\/td><td>Di\u00e1metro menor<\/td><\/tr><tr><td>1\/16<\/td><td>28<\/td><td>7.732<\/td><td>7.142<\/td><td>6.561<\/td><td rowspan=\"14\">55\u00b0<\/td><\/tr><tr><td>1\/8<\/td><td>28<\/td><td>9.782<\/td><td>9.147<\/td><td>8.566<\/td><\/tr><tr><td>1\/4<\/td><td>19<\/td><td>13.157<\/td><td>12.301<\/td><td>11.455<\/td><\/tr><tr><td>3\/8<\/td><td>19<\/td><td>16.662<\/td><td>15.806<\/td><td>14.95<\/td><\/tr><tr><td>1\/2<\/td><td>14<\/td><td>20.955<\/td><td>19.793<\/td><td>18.631<\/td><\/tr><tr><td>5\/8<\/td><td>14<\/td><td>22.911<\/td><td>21.749<\/td><td>20.587<\/td><\/tr><tr><td>3\/4<\/td><td>14<\/td><td>26.441<\/td><td>25.279<\/td><td>24.117<\/td><\/tr><tr><td>7\/8<\/td><td>14<\/td><td>30.201<\/td><td>29.039<\/td><td>27.877<\/td><\/tr><tr><td>1<\/td><td>11<\/td><td>33.249<\/td><td>31.77<\/td><td>30.291<\/td><\/tr><tr><td>1-1\/8<\/td><td>11<\/td><td>37.897<\/td><td>36.418<\/td><td>34.939<\/td><\/tr><tr><td>1-1\/4<\/td><td>11<\/td><td>41.91<\/td><td>40.431<\/td><td>38.952<\/td><\/tr><tr><td>1-1\/2<\/td><td>11<\/td><td>47.803<\/td><td>46.324<\/td><td>44.845<\/td><\/tr><tr><td>1-3\/4<\/td><td>11<\/td><td>53.746<\/td><td>52.267<\/td><td>50.788<\/td><\/tr><tr><td>2<\/td><td>11<\/td><td>59.614<\/td><td>58.135<\/td><td>56.656<\/td><\/tr><tr><td colspan=\"6\">Serie-Tama\u00f1o-Hilos por pulgada (TPI)<br>por ejemplo, G 1\/8-28<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-d-4-british-tapered-threads-bspt-pt-r-rc-zg\">d-4. Roscas c\u00f3nicas brit\u00e1nicas (BSPT = PT = R = RC = ZG)<\/h4>\n\n\n\n<p>Las roscas c\u00f3nicas brit\u00e1nicas suelen denominarse BSPT (British Standard Pipe Taper). En las normas modernas, se utiliza cada vez m\u00e1s la designaci\u00f3n de rosca \u201cR\u201d, aunque BSPT sigue siendo un t\u00e9rmino ampliamente reconocido en la industria.<\/p>\n\n\n\n<p><strong>Formato de designaci\u00f3n:<\/strong><br><strong>Serie-Tama\u00f1o-Hilos por pulgada (TPI)<\/strong><br>Por ejemplo, <strong>R 1\/2-14<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\"> Roscas c\u00f3nicas est\u00e1ndar brit\u00e1nicas<br>BSPT=PT=R=RC=ZG<\/td><\/tr><tr><td rowspan=\"2\">Tama\u00f1o de la rosca<\/td><td rowspan=\"2\">Hilos por pulgada<br>(TPI)<\/td><td colspan=\"3\">Di\u00e1metro de la rosca<br>(mm)<\/td><td rowspan=\"2\">\u00c1ngulo de rosca<\/td><\/tr><tr><td>Di\u00e1metro mayor<\/td><td>Di\u00e1metro de paso simple<\/td><td>Di\u00e1metro menor<\/td><\/tr><tr><td>1\/16<\/td><td>28<\/td><td>7.723<\/td><td>7.142<\/td><td>6.561<\/td><td rowspan=\"10\">55\u00b0<\/td><\/tr><tr><td>1\/8<\/td><td>28<\/td><td>9.728<\/td><td>9.147<\/td><td>8.566<\/td><\/tr><tr><td>1\/4<\/td><td>19<\/td><td>13.157<\/td><td>12.3<\/td><td>11.445<\/td><\/tr><tr><td>3\/8<\/td><td>19<\/td><td>16.662<\/td><td>15.81<\/td><td>14.95<\/td><\/tr><tr><td>1\/2<\/td><td>14<\/td><td>20.995<\/td><td>19.79<\/td><td>18.631<\/td><\/tr><tr><td>3\/4<\/td><td>14<\/td><td>26.441<\/td><td>25.28<\/td><td>24.117<\/td><\/tr><tr><td>1<\/td><td>11<\/td><td>33.249<\/td><td>31.77<\/td><td>30.291<\/td><\/tr><tr><td>1-1\/4<\/td><td>11<\/td><td>41.91<\/td><td>40.43<\/td><td>38.952<\/td><\/tr><tr><td>1-1\/2<\/td><td>11<\/td><td>47.803<\/td><td>46.32<\/td><td>44.845<\/td><\/tr><tr><td>2<\/td><td>11<\/td><td>59.641<\/td><td>58.14<\/td><td>56.656<\/td><\/tr><tr><td colspan=\"6\">Serie-Tama\u00f1o-Hilos por pulgada (TPI)<br>por ejemplo, R 1\/2-14<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"h-d-5-iso-metric-threads-m\">d-5. Roscas m\u00e9tricas ISO (M)<\/h4>\n\n\n\n<p>Las roscas m\u00e9tricas ISO son uno de los tipos de rosca m\u00e1s reconocidos y normalizados internacionalmente. La norma ISO 68-1 define los principios fundamentales de dise\u00f1o de las roscas m\u00e9tricas. Estas roscas presentan un perfil en V symm\u00e9trico con un \u00e1ngulo de rosca de 60\u00b0, y tanto las roscas internas como las externas son paralelas.<\/p>\n\n\n\n<p>Las roscas m\u00e9tricas se designan con la letra \u201cM\u201d. Existen dos tipos principales de paso: paso grueso y paso fino. Las roscas gruesas son las m\u00e1s utilizadas y siguen valores de paso estandarizados, mientras que las roscas finas tienen pasos m\u00e1s peque\u00f1os.<\/p>\n\n\n\n<p>La denominaci\u00f3n de la rosca indica claramente el di\u00e1metro y el paso. Por ejemplo:<br>M4 \u00d7 0,5 significa que la rosca tiene un di\u00e1metro nominal de 4 mm y un paso de 0,5 mm.<\/p>\n\n\n\n<p>Si no se especifica el paso, se supone que es el paso grueso est\u00e1ndar definido en ISO 261 \/ ISO 262. Por ejemplo, M8 implica una rosca gruesa. Del mismo modo, si solo se proporciona M20, se entiende que es una rosca de paso grueso.<\/p>\n\n\n\n<p><strong>Formato de designaci\u00f3n:<\/strong><br><strong>Serie \u2013 Tama\u00f1o \u00d7 Paso<\/strong><br>Por ejemplo, <strong>M14 \u00d7 1.5<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td colspan=\"6\"><strong>Roscas m\u00e9tricas ISO<\/strong><br><strong>M<\/strong><\/td><\/tr><tr><td rowspan=\"2\">Tama\u00f1o de la rosca<\/td><td rowspan=\"2\">Pitch<\/td><td colspan=\"3\">Di\u00e1metro de la rosca<br>(mm)<\/td><td rowspan=\"2\">\u00c1ngulo de rosca<\/td><\/tr><tr><td>Di\u00e1metro mayor<\/td><td>Di\u00e1metro de paso simple<\/td><td>Di\u00e1metro menor<\/td><\/tr><tr><td>M6<\/td><td rowspan=\"3\">1<\/td><td>6<\/td><td>5.35<\/td><td>4.917<\/td><td rowspan=\"14\">60\u00b0<\/td><\/tr><tr><td>M8<\/td><td>8<\/td><td>7.35<\/td><td>6.917<\/td><\/tr><tr><td>M10<\/td><td>10<\/td><td>9.35<\/td><td>8.917<\/td><\/tr><tr><td>M12<\/td><td rowspan=\"7\">1.5<\/td><td>12<\/td><td>11.03<\/td><td>10.376<\/td><\/tr><tr><td>M14<\/td><td>14<\/td><td>13.03<\/td><td>12.376<\/td><\/tr><tr><td>M16<\/td><td>16<\/td><td>15.03<\/td><td>14.376<\/td><\/tr><tr><td>M18<\/td><td>18<\/td><td>17.03<\/td><td>16.376<\/td><\/tr><tr><td>M20<\/td><td>20<\/td><td>19.03<\/td><td>18.376<\/td><\/tr><tr><td>M22<\/td><td>22<\/td><td>21.03<\/td><td>20.376<\/td><\/tr><tr><td>M24<\/td><td>24<\/td><td>23.03<\/td><td>22.376<\/td><\/tr><tr><td>M27<\/td><td rowspan=\"4\">2<\/td><td>27<\/td><td>25.7<\/td><td>24.835<\/td><\/tr><tr><td>M30<\/td><td>30<\/td><td>28.7<\/td><td>27.835<\/td><\/tr><tr><td>M33<\/td><td>33<\/td><td>31.7<\/td><td>30.835<\/td><\/tr><tr><td>M36<\/td><td>36<\/td><td>34.7<\/td><td>33.835<\/td><\/tr><tr><td colspan=\"6\">Serie \u2013 Tama\u00f1o \u00d7 Paso<br>p. ej., M14 \u00d7 1,5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-palette-color-2-color has-text-color has-link-color wp-elements-cc01db23c1bba5003aa4f8baecabc978\" id=\"h-5-four-steps-to-identify-thread-specifications\"><span class=\"ez-toc-section\" id=\"5-four-steps-to-identify-thread-specifications\"><\/span>5. Cuatro pasos para identificar las especificaciones de la rosca<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-flexible-table-block-table is-content-justification-center is-scroll-on-mobile\"><table class=\"has-fixed-layout\"><tbody><tr><td rowspan=\"2\">Rosca est\u00e1ndar<\/td><td>Primer paso<\/td><td>Paso 2<\/td><td>Paso 3<\/td><td>Paso 4<\/td><\/tr><tr><td>Determinar el tipo de hilo<\/td><td>Determinar el paso de rosca<\/td><td>Determinar el tama\u00f1o de la rosca<\/td><td>Determinar la norma de rosca<\/td><\/tr><tr><td>Roscas rectas seg\u00fan norma estadounidense (SAE = UN = UNF)<\/td><td>En paralelo<\/td><td>12\u300114\u300116<br>18\u300120\u300124<\/td><td rowspan=\"5\">Midiendo con:<br>Calibre vernier<br>Calibre de cuadrante<br>Calibre digital<\/td><td>Tama\u00f1o-TPI-Serie<br>por ejemplo, 3\/4-16 UN<\/td><\/tr><tr><td>Roscas c\u00f3nicas seg\u00fan norma estadounidense<br>(NPT \/ NPTF)<\/td><td>C\u00f3nico<\/td><td>11-1\/2\u300114<br>18\u300127<\/td><td>Tama\u00f1o-TPI-Serie<br>por ejemplo, 1\/4-18 NPT<\/td><\/tr><tr><td>Roscas paralelas est\u00e1ndar brit\u00e1nicas (BSPP=BSP=PF=G)<\/td><td>En paralelo<\/td><td>11\u300114<br>19\u300128<\/td><td>Serie-Tama\u00f1o-TPI<br>por ejemplo, G 1\/8-28<\/td><\/tr><tr><td>Roscas c\u00f3nicas est\u00e1ndar brit\u00e1nicas (BSPT=PT=R=RC=ZG)<\/td><td>C\u00f3nico<\/td><td>11\u300114<br>19\u300128<\/td><td>Serie-Tama\u00f1o-TPI<br>por ejemplo, R 1\/2-14<\/td><\/tr><tr><td>Roscas m\u00e9tricas ISO M<\/td><td>En paralelo<\/td><td>1.0\u30011.5\u30012.0<\/td><td>Serie-Tama\u00f1o x Paso<br>p. ej., M14 \u00d7 1,5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Ahora que ha aprendido a seleccionar el tipo y el tama\u00f1o de rosca, \u00bfse pregunta c\u00f3mo instalar el instrumento? Haga clic en el siguiente enlace para conocer el proceso de instalaci\u00f3n y las precauciones correspondientes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Las seis principales causas t\u00edpicas de fallo de los equipos a presi\u00f3n<\/li>\n\n\n\n<li>Puntos clave de seguridad para la instalaci\u00f3n de man\u00f3metros<\/li>\n<\/ul>\n\n\n\n<p><strong>Cr\u00e9dito y referencia:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ASME: Roscas para tubos, uso general, pulgadas<\/li>\n\n\n\n<li>ISO 68-1:1998(en) Roscas ISO de uso general - Perfil b\u00e1sico - Parte 1. Roscas m\u00e9tricas: Parte 1: Roscas m\u00e9tricas<\/li>\n\n\n\n<li>ISO\/DIS 6149-1(en) Conexiones para la alimentaci\u00f3n de fluidos hidr\u00e1ulicos y uso general - Puertos y extremos de esp\u00e1rragos con roscas m\u00e9tricas ISO 261 y sellado por junta t\u00f3rica - Parte 1: Puertos con alojamiento truncado para sellado por junta t\u00f3rica: Parte 1: Conexiones con alojamiento truncado para junta t\u00f3rica.<\/li>\n\n\n\n<li>ISO 262:1998 ISO roscas m\u00e9tricas de uso general - Tama\u00f1os seleccionados para tornillos, pernos y tuercas<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Are you confused by industry terms such as \u201cthread,\u201d \u201cscrew thread,\u201d \u201cconnection,\u201d or \u201cfitting,\u201d as well as the wide range of specifications available? SJ Gauge offers four primary thread connection types: NPT, PT, G, and M. Are you wondering which option best suits your specific application requirements? In the following article, we will provide a [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2438,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[61],"tags":[73],"class_list":["post-2407","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-knowledge"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Industrial Instrument Thread Standards Guide | SJ Gauge<\/title>\n<meta name=\"description\" content=\"Master common thread standards for industrial instruments. 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