Nylon Washers, Mudguard, Full Washers, Flat Washers, Form A
301 Stainless Steel, Brass, TPE, Ceramic, Stainless Steel
4.5 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
17 mm, 5.36 mm, 13 mm, 4.36 mm, 6.5 mm
3.5 mm, 8.1 mm, 2.5 mm, 0.5 mm, 0.3 mm
M4, M3 (Form A), M12, M5 (Form A), M16
DIN 127B, ASME B18.8.1, BS 4320B, DIN 7603A, BS 4320