Prime-Line 9082286 Medium Split Lock Washers 3/8 inch Hot Dip Galvanized Steel 50-pack Zinc
- Round washer with a split and helical shape.
- When fully fastened, the edges at the split bite into the nut and material surface.
- Provides a spring tension force that adds additional friction.
- Helps to prevent nuts from loosening in cases where it may be subject to vibration, in some applications a flat washer is used with the split lock washer.