{"id":3467,"date":"2025-06-27T09:06:59","date_gmt":"2025-06-27T01:06:59","guid":{"rendered":"https:\/\/machinedwasher.com\/?post_type=product&p=3467"},"modified":"2025-06-27T09:18:55","modified_gmt":"2025-06-27T01:18:55","slug":"coiled-spring-pin","status":"publish","type":"product","link":"https:\/\/machinedwasher.com\/id\/products\/coiled-spring-pin\/","title":{"rendered":"M4 M5 M6 DIN7343 Galvanized Coiled Spring Pin,DIN 7343 Spiral Pins,Coiled Spring Pins"},"content":{"rendered":"

What is a Coiled Spring Pin?<\/strong><\/h2>\n

A\u00a0Coiled Spring Pin<\/strong>\u00a0(also known as a\u00a0Spiral Pin<\/strong>) is a self-retaining mechanical fastener made from a tightly wound steel strip, forming a hollow, cylindrical pin with a slight interference fit when installed. Its coiled design allows it to compress and expand, providing flexibility and vibration resistance in assemblies.<\/p>\n

Materials<\/strong><\/h2>\n

They are typically made from:<\/p>\n

    \n
  • \n

    Carbon Steel<\/strong>\u00a0(Most common, cost-effective, and durable)<\/p>\n<\/li>\n

  • \n

    Stainless Steel<\/strong>\u00a0(Corrosion-resistant, ideal for harsh environments)<\/p>\n<\/li>\n

  • \n

    Alloy Steel<\/strong>\u00a0(High strength for heavy-duty applications)<\/p>\n<\/li>\n<\/ul>\n

    Surface Treatments<\/strong><\/h2>\n

    To enhance performance, coiled spring pins may have:<\/p>\n

      \n
    • \n

      Galvanized & Zinc Plating<\/strong> (Basic corrosion resistance)<\/p>\n<\/li>\n

    • \n

      Black Oxide<\/strong>\u00a0(Improves wear resistance and appearance)<\/p>\n<\/li>\n

    • \n

      Passivation (for Stainless Steel)<\/strong>\u00a0(Enhances corrosion resistance)<\/p>\n<\/li>\n

    • \n

      Phosphate Coating<\/strong>\u00a0(Improves lubrication and wear resistance)<\/p>\n<\/li>\n<\/ul>\n

      Specifications<\/strong><\/h2>\n
        \n
      • \n

        Diameter Range:<\/strong>\u00a00.8 mm to 25 mm (varies by standard)<\/p>\n<\/li>\n

      • \n

        Length Range:<\/strong>\u00a03 mm to 200 mm (custom lengths available)<\/p>\n<\/li>\n

      • \n

        Standards:<\/strong>\u00a0DIN 1481, ISO 8752, ANSI B18.8.2<\/p>\n<\/li>\n<\/ul>\n

        Applications<\/strong><\/h2>\n

        Coiled spring pins are widely used in:<\/p>\n

          \n
        • \n

          Automotive<\/strong>\u00a0(Gearboxes, transmissions, suspension systems)<\/p>\n<\/li>\n

        • \n

          Aerospace<\/strong>\u00a0(Flight control linkages, engine components)<\/p>\n<\/li>\n

        • \n

          Industrial Machinery<\/strong>\u00a0(Pivot joints, hydraulic systems)<\/p>\n<\/li>\n

        • \n

          Electronics<\/strong>\u00a0(Housings, connectors, PCB mounts)<\/p>\n<\/li>\n

        • \n

          Medical Devices<\/strong>\u00a0(Surgical instruments, adjustable mechanisms)<\/p>\n<\/li>\n<\/ul>\n

          Excellent Case: Automotive Transmission Assembly<\/strong><\/h2>\n

          Challenge:<\/strong>\u00a0A leading automotive manufacturer needed a reliable fastener for synchronizer hubs in manual transmissions, requiring high shear strength and vibration resistance.<\/p>\n

          Solution:<\/strong>\u00a0Coiled spring pins (carbon steel, zinc-plated) were used to secure the gear shift mechanism. Their flexibility accommodated minor misalignments, while the interference fit prevented loosening under vibration.<\/p>\n

          Result:<\/strong><\/p>\n

            \n
          • \n

            Improved durability<\/strong>\u00a0(No pin failures even after 200,000+ cycles)<\/p>\n<\/li>\n

          • \n

            Reduced maintenance costs<\/strong>\u00a0(No re-tightening needed)<\/p>\n<\/li>\n

          • \n

            Enhanced assembly efficiency<\/strong>\u00a0(Easy installation with standard tools)<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

            M4 M5 M6 DIN7343 Galvanized Coiled Spring Pin,DIN 7343 Spiral Pins,Coiled Spring Pins<\/p>","protected":false},"featured_media":3470,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[28],"product_tag":[1345,1335,1343,1338,1339,1340,683,1341,1342,1337,1336,1344,1346,1347],"class_list":{"0":"post-3467","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-dowel-pins","7":"product_tag-coil-spring-pin","8":"product_tag-coiled-spring-pin","9":"product_tag-coiled-spring-pins","10":"product_tag-dowel-pin-3-8","11":"product_tag-dowel-pin-3-16","12":"product_tag-dowel-pin-5mm","13":"product_tag-dowel-pins","14":"product_tag-galvanized-coiled-spring-pin","15":"product_tag-m8-coiled-spring-pin","16":"product_tag-metal-coiled-spring-pin","17":"product_tag-spiral-pins","18":"product_tag-spring-pin","19":"product_tag-stainless-steel-spring-pin","20":"product_tag-steel-spring-pin","22":"first","23":"instock","24":"shipping-taxable","25":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/product\/3467","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/comments?post=3467"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/media\/3470"}],"wp:attachment":[{"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/media?parent=3467"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/product_brand?post=3467"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/product_cat?post=3467"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/machinedwasher.com\/id\/wp-json\/wp\/v2\/product_tag?post=3467"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}