Crinkle, Mudguard, Plain Washer, Full Washers, Form A
Brass, Steel, TPE, 301 Stainless Steel, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
10.5 mm, 14 mm, 5.36 mm, 2.25 mm, 6.5 mm
1.8 mm, 3.5 mm, 0.28 mm, 2.5 mm, 1.6 mm
M3, M16, M12, M6, M5 (Form A)
BS 4463, ASME B18.21.1, BS 4320G, BS 4320B, DIN 125A