uxcell 1-Inch Flat Washer, Alloy Steel Black Oxide Finish Pack of 10, Flat Washers - Amazon Canada
M6.4 ID x M2.5 x M13 OD (M6) Nominal Size Black Oxide Flat Washer | Fastenal
100) 3/8" & 10mm Flat Washers SAE Black Oxide BLACK .375 id x .13/16 OD x 1/16 | eBay
Steel Flat Washer, Black Oxide Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100) : Amazon.ca: Tools & Home Improvement
100 Set M6 Steel Split Washer Lock Washer Spring Washer Ring and Flat Washer, Surface Black Oxide Finish, 0.08" and 0.05" Thick : Amazon.ca: Tools & Home Improvement