spring pins

Specification Highlights:

• Material Options:

  • Spring Steel (high carbon) – most common

  • Stainless Steel (SS304/316) – corrosion-resistant

  • Phosphor Bronze – non-magnetic, corrosion-resistant

  • Copper Alloy – for electrical applications

• Types of Spring Pins:

  • Slotted Spring Pins (most widely used)

  • Coiled Spring Pins (for heavier dynamic loads)

  • Heavy Duty or Light Duty variants available based on application

• Size Range:

  • Diameter: 1 mm to 25 mm (metric) | 1/16" to 1" (imperial)

  • Length: 4 mm to 100 mm or more, depending on the diameter

  • Available in standard, oversized, and custom lengths

• Finish / Coating Options:

  • Plain / Self-colored

  • Zinc plated (rust protection)

  • Black oxide (for corrosion resistance and low visibility)

  • Passivated (for stainless steel variants)

• Standards Compliance:

  • ISO 8752

  • DIN 1481 (slotted spring pin)

  • ISO 13337 (coiled spring pin)

  • ANSI B18.8.2

  • IS 5988 (Indian Standard)

• Installation Method:

  • Inserted into a pre-drilled hole slightly smaller than the pin

  • Compresses during installation and expands to hold tightly

  • Installed using a hammer or press; removal requires punch-out

• Applications:

  • Securing gears, pulleys, and levers on shafts

  • Locating and aligning mechanical parts

  • Tool handles, hinges, couplings

  • Automotive transmissions and brake systems

  • Electronic device housings

  • Fixtures, jigs, and modular systems

• Key Features:

  • Self-retaining – holds tight in drilled holes without additional locking

  • Shock and vibration-resistant

  • Reusable in some applications

  • Quick and easy installation and removal

  • Available in various strengths and materials

  • Can absorb shear and torsional loads effectively