Crinkle, Cup, Lock Washer, Full Washers, Form A
Fibre, Brass, TPE, Vulcanised Fibre, Copper
4 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 10.5 mm, 2.1 mm, 2.25 mm, 6.5 mm
3.5 mm, 0.4 mm, 1.1 mm, 0.3 mm, 2.5 mm
M12, M24, M2, M5 (Form A), M10
BS 4320, DIN 7603A, BS 4320:1968, BS 4320B, DIN 125A