{"id":2406,"date":"2026-08-10T01:22:04","date_gmt":"2026-08-09T17:22:04","guid":{"rendered":"https:\/\/www.charviso.com\/?page_id=2406"},"modified":"2026-08-10T01:54:54","modified_gmt":"2026-08-09T17:54:54","slug":"automotive-rearview-mirror-screws-and-custom-double-ended-fasteners","status":"publish","type":"page","link":"https:\/\/www.charviso.com\/vi\/automotive-rearview-mirror-screws-and-custom-double-ended-fasteners\/","title":{"rendered":"Automotive Rearview Mirror Screws and Custom Double-Ended Fasteners"},"content":{"rendered":"<p><!-- CHARVISO NEWS ARTICLE v1.0 --><\/p>\n<style id=\"charviso-ajax-news-v1\">\nhtml{scroll-behavior:smooth}body.page-id-525{margin:0!important;background:#000!important;color:#fff!important}body.page-id-525 .fusion-header-wrapper,body.page-id-525 .fusion-tb-header,body.page-id-525 .fusion-footer,body.page-id-525 .fusion-tb-footer,body.page-id-525 .fusion-page-title-bar,body.page-id-525 #sliders-container,body.page-id-525 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href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Request a quote<\/a><button class=\"cvx-hamburger\" type=\"button\" aria-label=\"Toggle menu\" aria-expanded=\"false\">\u2630<\/button><\/div>\n<\/nav>\n<\/header>\n<p> <main class=\"cva-main\"><\/p>\n<section class=\"cva-hero\">\n<div class=\"cvx-shell\"><a class=\"cva-back\" href=\"https:\/\/www.charviso.com\/vi\/news\/\">\u2190 Back to News<\/a><\/p>\n<div class=\"cva-hero-grid\">\n<div>\n<div class=\"cva-meta\"><span>Product &#038; Engineering<\/span><time datetime=\"2014-07-14\">July 14, 2014<\/time><\/div>\n<h1>Automotive Rearview Mirror Screws and Custom Double-Ended Fasteners<\/h1>\n<\/div>\n<p class=\"cva-summary\">A practical overview of custom rearview-mirror screws, double-ended studs, materials, finishes and automotive applications.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<div class=\"cva-visual\"><img class=\"lazyload\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%271200%27%20height%3D%27800%27%20viewBox%3D%270%200%201200%20800%27%3E%3Crect%20width%3D%271200%27%20height%3D%27800%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/www.charviso.com\/wp-content\/uploads\/2026\/08\/charviso-industry-clean-automotive.webp\" alt=\"Automotive rearview mirror screw application\" width=\"1200\" height=\"800\" decoding=\"async\" fetchpriority=\"high\"><\/div>\n<div class=\"cva-layout\">\n<article class=\"cva-content\">\n<p class=\"cva-lead\">Charviso produces custom screws, studs and double-ended fasteners for automotive rearview mirrors and related mechanical assemblies.<\/p>\n<h2>Product scope<\/h2>\n<div class=\"cva-specs\">\n<div><strong>Product types<\/strong><span>Double-ended studs, center studs, rearview-mirror screws, spacer bolts and custom fasteners<\/span><\/div>\n<div><strong>Threads<\/strong><span>Partial or full thread; metric, Unified and other drawing-defined systems<\/span><\/div>\n<div><strong>Materials<\/strong><span>Low- and medium-carbon steel, stainless steel including 304\/304L, brass and aluminum<\/span><\/div>\n<div><strong>Reference standards<\/strong><span>GB, JIS, DIN, ANSI and ISO<\/span><\/div>\n<div><strong>Typical size range<\/strong><span>Metric diameters M2\u2013M10; lengths from approximately 5\u2013200 mm, subject to design review<\/span><\/div>\n<div><strong>Property classes<\/strong><span>4.8, 6.8, 8.8, 10.9 and 12.9 where applicable<\/span><\/div>\n<\/div>\n<h2>Finishes and validation<\/h2>\n<p>Available finishes include black, clear, blue and yellow zinc systems, zinc-iron passivation, nickel, black nickel, Dacromet-type coatings and other application-specific treatments. RoHS-compliant options and salt-spray requirements can be reviewed against the customer drawing and service environment.<\/p>\n<h2>Custom manufacturing<\/h2>\n<p>Non-standard dimensions and special functional features can be manufactured from customer drawings or approved samples. Typical applications include automotive mirrors and transmissions, electronics, communications equipment, office furniture, textile machinery, LED lighting, medical equipment and other precision industrial products.<\/p>\n<p><a class=\"cva-inline-link\" href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Send Charviso your drawing for engineering review \u2192<\/a><\/p>\n<p class=\"cva-source\">This English article was reviewed and adapted from Charviso\u2019s historical Chinese company archive. Product terminology, standard references and dates were corrected where the source contained clear typographical or metadata errors.<\/p>\n<\/article>\n<aside class=\"cva-aside\"><small>Continue exploring<\/small><\/p>\n<p>See more manufacturing knowledge, company updates and application experience from Charviso.<\/p>\n<p><a href=\"https:\/\/www.charviso.com\/vi\/charviso-marks-its-13th-anniversary-with-a-team-trip\/\">\u2190 Charviso Marks Its 13th Anniversary with a Team Trip<\/a><a href=\"https:\/\/www.charviso.com\/vi\/2014-labor-day-holiday-schedule\/\">2014 Labor Day Holiday Schedule \u2192<\/a><a href=\"https:\/\/www.charviso.com\/vi\/cases\/\">Explore manufacturing cases<\/a><a href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Discuss a project<\/a><\/aside>\n<\/div>\n<p><\/main><\/p>\n<footer class=\"cvx-footer\">\n<div class=\"cvx-shell\">\n<div class=\"cvx-footer-cta\">\n<div class=\"cvx-footer-cta-copy\">\n<h2>Build your next product with Charviso.<\/h2>\n<p>Share your drawings, specifications or target application. Our engineering team will review the project and respond with a production-ready plan.<\/p>\n<\/div>\n<div class=\"cvx-footer-cta-actions\"><a class=\"cvx-footer-button\" href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Request a quote<\/a><a class=\"cvx-footer-button cvx-footer-button--secondary\" href=\"https:\/\/www.charviso.com\/vi\/solutions\/\">Explore capabilities<\/a><\/div>\n<\/div>\n<div class=\"cvx-footer-grid\">\n<div class=\"cvx-footer-brand\"><img decoding=\"async\" class=\"lazyload cvx-footer-logo\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27700%27%20height%3D%27158%27%20viewBox%3D%270%200%20700%20158%27%3E%3Crect%20width%3D%27700%27%20height%3D%27158%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-orig-src=\"https:\/\/www.charviso.com\/wp-content\/uploads\/2026\/08\/charviso-logo-horizontal-700.png\" width=\"700\" height=\"158\" alt=\"Charviso\"><\/p>\n<p>Precision fasteners, CNC components and professional tools engineered for global product companies, distributors and industrial supply chains.<\/p>\n<div class=\"cvx-footer-contact\"><a href=\"mailto:info@charviso.com\">info@charviso.com<\/a><a href=\"tel: 8676086331516\">+86 760 8633 1516<\/a><\/div>\n<div class=\"cvx-footer-social\" aria-label=\"Charviso social media\"><a href=\"https:\/\/www.facebook.com\/people\/Charviso-Hardwares-Co-Ltd\/61558057144359\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-social=\"facebook\" aria-label=\"Charviso on Facebook\"><svg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"M13.7 22v-8h2.7l.4-3.1h-3.1V9c0-.9.3-1.6 1.6-1.6H17V4.7c-.3 0-1.3-.1-2.4-.1-2.4 0-4.1 1.5-4.1 4.2v2.1H7.8V14h2.7v8h3.2Z\"\/><\/svg><\/a><a href=\"https:\/\/www.instagram.com\/charvisohardwares\/\" target=\"_blank\" rel=\"noopener noreferrer\" data-social=\"instagram\" aria-label=\"Charviso on Instagram\"><svg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" aria-hidden=\"true\"><rect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"5\"\/><circle cx=\"12\" cy=\"12\" r=\"4\"\/><circle cx=\"17.5\" cy=\"6.5\" r=\"1\" fill=\"currentColor\" stroke=\"none\"\/><\/svg><\/a><a href=\"https:\/\/www.tiktok.com\/@charvisohardwares\" target=\"_blank\" rel=\"noopener noreferrer\" data-social=\"tiktok\" aria-label=\"Charviso on TikTok\"><svg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"M15.5 3c.3 2.1 1.5 3.5 3.5 3.8v3.1a8.4 8.4 0 0 1-3.5-1v6.4A5.7 5.7 0 1 1 10.6 9v3.2a2.6 2.6 0 1 0 1.8 2.5V3h3.1Z\"\/><\/svg><\/a><a href=\"https:\/\/wa.me\/message\/F43UC4NUWX7XK1?src=qr\" target=\"_blank\" rel=\"noopener noreferrer\" data-social=\"whatsapp\" aria-label=\"Contact Charviso on WhatsApp\"><svg width=\"17\" height=\"17\" viewbox=\"0 0 24 24\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"M12 2a9.8 9.8 0 0 0-8.4 14.9L2.2 22l5.2-1.4A10 10 0 1 0 12 2Zm0 17.8c-1.6 0-3.1-.5-4.4-1.3l-.3-.2-3 .8.8-2.9-.2-.3A7.8 7.8 0 1 1 12 19.8Zm4.3-5.8c-.2-.1-1.4-.7-1.6-.8-.2-.1-.4-.1-.6.1l-.7.9c-.1.2-.3.2-.5.1a6.4 6.4 0 0 1-3.2-2.8c-.2-.3 0-.5.1-.6l.5-.6.2-.5c.1-.2 0-.4 0-.5l-.8-1.9c-.2-.5-.4-.4-.6-.4h-.5c-.2 0-.5.1-.7.3-.2.2-.9.9-.9 2.2s.9 2.6 1.1 2.8c.1.2 1.9 3 4.7 4.1.7.3 1.2.5 1.6.6.7.2 1.3.2 1.8.1.5-.1 1.4-.6 1.6-1.1.2-.6.2-1 .2-1.1-.1-.2-.3-.3-.5-.4Z\"\/><\/svg><\/a><a href=\"https:\/\/www.youtube.com\/channel\/UCvOt0tm2TE4vENOVuxLP-Sw\" target=\"_blank\" rel=\"noopener noreferrer\" data-social=\"youtube\" aria-label=\"Charviso on YouTube\"><svg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" aria-hidden=\"true\"><path fill=\"currentColor\" d=\"M23 7.1a3 3 0 0 0-2.1-2.2C19 4.4 12 4.4 12 4.4s-7 0-8.9.5A3 3 0 0 0 1 7.1 31 31 0 0 0 .5 12c0 1.7.1 3.4.5 4.9a3 3 0 0 0 2.1 2.2c1.9.5 8.9.5 8.9.5s7 0 8.9-.5a3 3 0 0 0 2.1-2.2c.4-1.5.5-3.2.5-4.9s-.1-3.4-.5-4.9ZM9.7 15.3V8.7L15.5 12l-5.8 3.3Z\"\/><\/svg><\/a><span data-social=\"x\" hidden><\/span><\/div>\n<\/div>\n<div>\n<h4>Products &amp; capabilities<\/h4>\n<ul>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/fasteners\/\">Screws &amp; fasteners<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/cnc-machining-parts\/\">Automatic lathe parts<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/cnc-machining-parts\/\">CNC components<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/hand-tools\/\">Hand tools<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/power-tools\/\">Power tools<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/solutions\/\">Manufacturing services<\/a><\/li>\n<\/ul>\n<\/div>\n<div>\n<h4>Solutions &amp; industries<\/h4>\n<ul>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/solutions\/\">OEM \/ ODM manufacturing<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/solutions\/\">Rapid sampling<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/project\/automotive-chassis-bolt\/\">Automotive components<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/project\/ev-charging-station-components\/\">EV charging components<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/project\/consumer-electronics-bluetooth-speaker-components\/\">Consumer electronics<\/a><\/li>\n<\/ul>\n<\/div>\n<div>\n<h4>Company &amp; resources<\/h4>\n<ul>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/company\/\">V\u1ec1 Charviso<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/cases\/\">Manufacturing cases<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/news\/\">News<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/how-screws-are-made\/\">How screws are made<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/cnc-machining-practical-guide\/\">CNC machining guide<\/a><\/li>\n<\/ul>\n<\/div>\n<div>\n<h4>Support &amp; contact<\/h4>\n<ul>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Request a quote<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/solutions\/\">Engineering support<\/a><\/li>\n<li><a href=\"https:\/\/www.charviso.com\/vi\/contact\/\">Global supply support<\/a><\/li>\n<li><a href=\"mailto:info@charviso.com\">Email our team<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"cvx-footer-bottom\"><span>\u00a9 2001\u20132026 Charviso Hardware International \u00b7 All rights reserved<\/span><\/p>\n<div class=\"cvx-footer-legal\"><a href=\"https:\/\/www.charviso.com\/vi\/sitemap.xml\/\">Sitemap<\/a><a href=\"mailto:info@charviso.com?subject=Privacy and legal inquiry\">Privacy &amp; 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