- Application
- Item Features
For use with 5/16 in Dia shoulder screw
- Precision die cut fits with close tolerances around the shoulder screw shank to fit under the screw head
- Die cut from 1075 tempered spring steel
- 0.313 in inner diameter
- 0.424 in outer diameter
- 44 - 47 RC hardness
- +/-0.00075 in tolerance