Seven Sixteenths Inch Diameter Four Inch Long Roll Pins Two Pack Heavy Duty High Carbon Spring Pins For Shafts With Minimal Play Heat Treated Black Finish Built To Last For Machinery And Do It Yourself Projects

Two-Pack 7/16 x 4 in High-Carbon Roll Pins for Tight Shafts
✔️ 2 pins, 7/16 in dia, 4 in length, heat-treated, black finish

These durable roll pins are designed for securing rotating shafts with minimal end play in machines, boats, cars, and DIY projects. The heat-treated, black finish adds extra protection against wear and corrosion.

✅ Diameter: 7/16 in (11.1 mm)
✅ Length: 4 in (101.6 mm)
✅ Material: spring steel; heat-treated; black finished for durability
✅ Pack size: 2 pins; ideal for shafts requiring tight fit

💡 What is a roll pin used for in mechanical assemblies and how does heat treatment affect durability?
Heat-treated pins offer longer life by increasing hardness and wear resistance.
- Used to securely fasten rotating parts with minimal end play
- Handy for shafts, bushings, and quick field repairs
- Heat-treated pins resist deformation under side loads