Home > Complete Inventory of Metric Fasteners for Every Project > Metric Pins
REQUEST FOR QUOTE

Metric Pins

At South Coast Fasteners, Inc., we supply fasteners that do more than just hold, they align, secure, and reinforce critical parts of your assembly. Our line of metric pins includes high-performing dowel pins and durable spring pins, manufactured to perform in mechanical systems, tooling, jigs, and alignment setups where accuracy and retention are critical. Metric pins are essential in everything from automotive to industrial equipment builds. When tolerances are tight and shear strength is critical, you can count on our pins to lock it in and keep everything aligned.

Compliance and Material Standards

All metric pins supplied by South Coast Fasteners are manufactured to DIN, ISO, and IFI standards to ensure proper fit, straightness, and material consistency. Our dowel and spring pins are produced from hardened carbon steel or stainless steel alloys (A2 and A4) and meet mechanical and corrosion resistance requirements for industrial use. We supply pins that meet ISO 2338, ISO 8734, and DIN 1481 standards. 

Metric Dowel Pins

Available types include:

  • Metric Through Hardened Steel Dowel Pins: Heat-treated for maximum strength and wear resistance. Used in tooling, heavy equipment, and industrial assemblies requiring tight tolerance and high shear strength.
  • Metric Stainless Steel A4 Dowel Pins: Made from marine-grade A4 stainless (316 equivalent) for excellent corrosion resistance in high-moisture, chemical, or outdoor environments.
  • Metric Stainless Steel A2 (18-8) Dowel Pins: General-purpose corrosion-resistant dowel pins suitable for food processing equipment, enclosures, and precision mechanical applications.

Metric Spring Pins (Black Oxide Finish)

  • Metric Black Oxide Spring Pins: Manufactured from carbon steel and treated with a black oxide finish for light corrosion protection and improved surface grip. These are ideal for applications where permanent retention is needed, but installation must be fast and simple.

Why Choose South Coast Fasteners?

At South Coast Fasteners, we understand that the smallest components can be the most critical ones. Whether you're aligning subassemblies, setting reference points, or securing rotating parts, our inventory of metric pins includes the right sizes, materials, and finishes to get it all done right. We support engineers, fabricators, maintenance teams, and manufacturers who rely on clean fits, consistent tolerances, and fast delivery. From prototype to production, our pins and rings are ready to perform, and we’re here to help you source exactly what you need, when you need it.

Shop Metric Pins Online Today

Browse our complete line of metric dowel pins and spring pins online at South Coast Fasteners. Order 24/7, or contact our team for support, bulk pricing, or certification requirements. Your alignment, retention, and fitment solutions are delivered fast and backed by expert experience.