Quarter Inch Roll Pin Half Inch Long Spring Pin Tension Pin 50 Pack Built Tough Heat Treated Black Finish For Rotating Shafts And Projects With A Tight Fit And Minimal Play

Quarter-Inch Roll Pin: 1/4 x 1/2 Black Heat-Treated
✔️ 1/4 in dia x 1/2 in length, heat-treated spring steel, 50 pack

These quarter-inch roll pins are spring pins used to secure rotating parts on shafts, gears, pulleys, or any assembly where a tight fit with minimal play. They’re heat-treated and finished in black oxide for durability in cars, boats, and industrial projects.

✅ Diameter: 1/4 in (6.35 mm)
✅ Length: 1/2 in (12.7 mm)
✅ Material: heat-treated spring steel
✅ Finish: black oxide finish for durability
✅ Pack size: 50 pieces

💡 What is a quarter inch roll pin used for in mechanical assemblies?

A handy pin that locks rotating parts with minimal end play.
- securing rotating parts with minimal end play
- ideal for shafts, gears, and pulleys in cars, boats, and industrial equipment
- heat-treated spring steel provides fatigue resistance
- black finish provides durability in harsh environments