Rondelle

Washer Shoulder 2.84mm-ID 0.112in-ID 7.11mm-OD 0.28in-OD 1.07mm-THK 0.042in-THK Polyphenylene Sulfide

The 51807034 is a 1/4 inch split lock washer designed to prevent fasteners from loosening.

#8 STEEL CUP WASHER

Washer Lock Size 4

Nickel Plated Internal Star And Split Washers

Washers Split Lock Washer Nickel

#8 FLAT STEEL WASHER (ZINC)

Washer Internal Tooth 15.47mm-ID 11.91mm-OD 0.46mm-THK

8 STL CUP WSHR

The 2672 is a flat insulating washer made from natural Nylon 6/6, designed to provide clearance for a #6 screw.