Mudguard, Plain Washer, Cup, Full Washers, Form A
Fibre, Steel, Brass, TPE, Ceramic
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 14 mm, 5.36 mm, 4.36 mm, 6.5 mm
3.5 mm, 0.6 mm, 8.1 mm, 1.6 mm, 1.1 mm
M3, M24, M5 (Form A), M4, M5
BS 4320B, DIN 127B, DIN 6797J, BS 4463, DIN 125A