Mil-Spec Pins

Pins, including dowel pins, slotted pins, cotter pins, and others, are used to keep components aligned or together within an assembly. They are constructed of a cylindrical clasp and, unlike standard pins or metric pins, are used in military or defense applications that must meet strict standardization requirements.

BW industrial Sales carries an extensive inventory of DFAR-compliant, tested, and certified military hardware. Free manufacturer’s certifications are always available upon request. Our stock of mil-spec pins and other fasteners are available in a large range of sizes, materials, types, and styles to meet your specifications.

With over a billion available parts, we’re certain we have the mil-spec hardware you need to complete your job. Contact us today with any questions, concerns, or assistance navigating your options.

Available Mil-Spec Pins for Military & Defense Manufacturers

Your satisfaction is our number one priority. To meet the diverse needs of military manufacturers, BW Industrial Sales supplies a wide variety of mil-spec cotter pins, dowel pins, and slotted spring pins in many sizes and configurations. If you don’t see the exact standard or fastener you require, call us at 626-358-1836 to speak with a representative directly.

MS16555 Dowel Pins

MS dowel pins are cylindrically shaped fasteners that secure two workpieces together or align components with an assembly. They are cost-effective options most commonly used with socket screws. Our inventory offers:
  • 400-series stainless steel passivated per ASTM 380-88
  • Diameters from 1/16” to 3/8”
  • Lengths from 3/16” to 3”

MS16562 Slotted Spring Pins

MS slotted spring pins, sometimes called coiled spring pins or spring pins, are formed by rolling sprung steel into a spiral to form a pin. They can then be inserted into a hole with a smaller diameter than the fastener for secure holding. We offer:
  • 1070-195 carbon steel with zinc phosphate coated material per DOD-P-16232, Type Z, Class 2
  • Diameters from 1/16” to 1/2”
  • Lengths from 3/16” to 3”

MS9245 Extended Prong Cotter Pins

MS extended prong cotter pins offer a chisel point for easy installation. Their most common applications include securing wheels or other components on a shaft or axle. Many sizes and configurations are available:
  • 18-8 stainless steel, T321 material
  • Diameters from 1/32” to 5/32”
  • Lengths from 1/4” to 1/2"

BW Industrial Sales is the #1 Choice for Mil-Spec Pins & Other MS Hardware

BW Industrial Sales is dedicated to making sure you never run out of stock again. From industry-leading services to locations in the USA and Canada to tailor-made VMI solutions, we are ready to be your full-service partner for any MS fastener need. Our team has over a hundred years of industry experience, and we’re prepared to tackle any military or defense challenge. Contact us or request a quote today to get started.
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