{"id":3921,"date":"2025-08-14T10:01:10","date_gmt":"2025-08-14T02:01:10","guid":{"rendered":"https:\/\/machinedwasher.com\/?post_type=product&p=3921"},"modified":"2025-08-14T10:06:00","modified_gmt":"2025-08-14T02:06:00","slug":"steel-dowel-pins","status":"publish","type":"product","link":"https:\/\/machinedwasher.com\/ja\/products\/steel-dowel-pins\/","title":{"rendered":"Internal Threaded Steel Dowel Pins Custom Perfect M8 Plain Steel Parallel Dowel Pin 24mm Long"},"content":{"rendered":"

What are Steel Dowel Pins?<\/strong><\/h3>\n

Steel dowel pins<\/strong>\u00a0are precision cylindrical fasteners used to align and secure mating components in machinery and assemblies. They provide\u00a0exact positioning<\/strong>,\u00a0shear strength<\/strong>, and\u00a0load transfer<\/strong>\u00a0between parts while preventing lateral movement. Unlike screws or bolts, dowel pins are\u00a0press-fit<\/strong>\u00a0or\u00a0slip-fit<\/strong>\u00a0into pre-drilled holes for permanent or semi-permanent alignment.<\/p>\n

\n

Materials of Steel Dowel Pins<\/strong><\/h3>\n
    \n
  1. \n

    Carbon Steel<\/strong>\u00a0(SAE 1018\/1045) \u2013 General-purpose, cost-effective.<\/p>\n<\/li>\n

  2. \n

    Alloy Steel<\/strong>\u00a0(AISI 4140\/4340) \u2013 Heat-treated for high strength.<\/p>\n<\/li>\n

  3. \n

    Stainless Steel<\/strong>\u00a0(304\/316\/17-4PH) \u2013 Corrosion-resistant for harsh environments.<\/p>\n<\/li>\n

  4. \n

    Case-Hardened Steel<\/strong>\u00a0(Surface-hardened) \u2013 Wear-resistant for high-load applications.<\/p>\n<\/li>\n

  5. \n

    Tool Steel<\/strong>\u00a0(D2, O1) \u2013 Extreme hardness for precision tooling.<\/p>\n<\/li>\n<\/ol>\n

    \n

    Surface Treatments<\/strong><\/h3>\n
      \n
    • \n

      Hardened & Ground<\/strong>\u00a0\u2013 Precision finish for tight tolerances (\u00b10.001″).<\/p>\n<\/li>\n

    • \n

      Zinc Plating<\/strong>\u00a0\u2013 Basic corrosion protection.<\/p>\n<\/li>\n

    • \n

      Black Oxide<\/strong>\u00a0\u2013 Anti-rust and reduced friction.<\/p>\n<\/li>\n

    • \n

      Electroless Nickel<\/strong>\u00a0\u2013 Uniform coating for wear resistance.<\/p>\n<\/li>\n

    • \n

      Passivation<\/strong>\u00a0(Stainless Steel) \u2013 Enhances corrosion resistance.<\/p>\n<\/li>\n<\/ul>\n

      \n

      Specifications<\/strong><\/h3>\n
        \n
      • \n

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

          \n
        • \n

          Straight Dowel Pins<\/strong>\u00a0(Standard cylindrical).<\/p>\n<\/li>\n

        • \n

          Tapered Dowel Pins<\/strong>\u00a0(For self-locking alignment).<\/p>\n<\/li>\n

        • \n

          Grooved Dowel Pins<\/strong>\u00a0(Improved retention).<\/p>\n<\/li>\n

        • \n

          Diamond Knurled Pins<\/strong>\u00a0(Press-fit for plastic\/composite materials).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n

        • \n

          Diameter Range<\/strong>: 1mm\u201350mm (metric) or 1\/16″\u20132″ (imperial).<\/p>\n<\/li>\n

        • \n

          Length<\/strong>: 5mm\u2013300mm (custom lengths available).<\/p>\n<\/li>\n

        • \n

          Tolerances<\/strong>: ISO h6\/h7 (slip-fit) or m6\/k6 (press-fit).<\/p>\n<\/li>\n

        • \n

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

            \n
          • \n

            ISO 2338<\/strong>\u00a0(Straight pins).<\/p>\n<\/li>\n

          • \n

            DIN 7<\/strong>\u00a0(Precision dowels).<\/p>\n<\/li>\n

          • \n

            ANSI\/ASME B18.8.2<\/strong>\u00a0(Imperial sizes).<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n

            \n

            Applications<\/strong><\/h3>\n
              \n
            • \n

              Automotive<\/strong>: Engine block alignment, transmission housings.<\/p>\n<\/li>\n

            • \n

              Aerospace<\/strong>: Wing\/fuselage assembly, landing gear components.<\/p>\n<\/li>\n

            • \n

              Industrial Machinery<\/strong>: CNC machine tables, robotic arms.<\/p>\n<\/li>\n

            • \n

              Medical Devices<\/strong>: Surgical instrument calibration.<\/p>\n<\/li>\n

            • \n

              Electronics<\/strong>: PCB alignment in high-vibration environments.<\/p>\n<\/li>\n<\/ul>\n

              \n

              Excellent Case: CNC Machine Tool Rebuild<\/strong><\/h3>\n

              Challenge<\/strong>: A manufacturing plant needed to\u00a0restore accuracy<\/strong>\u00a0to a worn CNC milling machine where the table had shifted 0.05mm due to years of vibration, causing part defects.<\/p>\n

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

                \n
              • \n

                Used\u00a0hardened alloy steel dowel pins<\/strong>\u00a0(AISI 4340, 12mm dia, h6 tolerance).<\/p>\n<\/li>\n

              • \n

                Reamed existing holes and press-fit new pins to realign the table.<\/p>\n<\/li>\n

              • \n

                Applied\u00a0black oxide coating<\/strong>\u00a0to prevent fretting corrosion.<\/p>\n<\/li>\n<\/ul>\n

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

                  \n
                • \n

                  Accuracy Restored to \u00b10.005mm<\/strong>\u00a0\u2013 Eliminated scrapped parts.<\/p>\n<\/li>\n

                • \n

                  Machine Lifespan Extended 10+ Years<\/strong>\u00a0\u2013 Avoided $250K replacement cost.<\/p>\n<\/li>\n

                • \n

                  30-Minute Installation<\/strong>\u00a0\u2013 Minimal downtime vs. full disassembly.<\/p>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

                  Internal Threaded Steel Dowel Pins Custom Perfect M8 Plain Steel Parallel Dowel Pin 24mm Long<\/p>","protected":false},"featured_media":3924,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[28],"product_tag":[2436,1135,2437,481,480,1134,1017,716,683,682,2441,1115,1116,704,2435,677,2439,712,479,684,2440,2438],"class_list":{"0":"post-3921","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-dowel-pins","7":"product_tag-1-2-steel-dowel-pins","8":"product_tag-1-4-steel-dowel-pins","9":"product_tag-3-8-steel-dowel-pins","10":"product_tag-303-stainless-steel-dowel-pins","11":"product_tag-316-stainless-steel-dowel-pins","12":"product_tag-alloy-steel-dowel-pins","13":"product_tag-aluminum-dowel-pins","14":"product_tag-custom-dowel-pins","15":"product_tag-dowel-pins","16":"product_tag-dowel-pins-3-8","17":"product_tag-dowel-pins-steel","18":"product_tag-fluted-dowel-pins","19":"product_tag-flywheel-dowel-pins","20":"product_tag-furniture-dowel-pins","21":"product_tag-hardened-steel-dowel-pins","22":"product_tag-hollow-dowel-pins","23":"product_tag-metric-stainless-steel-dowel-pins","24":"product_tag-small-metal-dowel-pins","25":"product_tag-stainless-steel-dowel-pins","26":"product_tag-steel-dowel-pins","27":"product_tag-steel-dowel-pins-6mm","28":"product_tag-steel-dowel-pins-bunnings","30":"first","31":"instock","32":"shipping-taxable","33":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product\/3921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/comments?post=3921"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/media\/3924"}],"wp:attachment":[{"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/media?parent=3921"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_brand?post=3921"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_cat?post=3921"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/machinedwasher.com\/ja\/wp-json\/wp\/v2\/product_tag?post=3921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}