Spring, Lock Washer, Plain Washer, Full Washers, Form A
Stainless Steel, Brass, TPE, Nylon, Copper
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 21 mm, 16.2 mm, 5.36 mm, 6.5 mm
2.5 mm, 1.6 mm, 2 mm, 3.5 mm, 0.28 mm
M3.5, M3 (Form A), M16, M5 (Form A), M12
BS 4320G, DIN 6798J, BS 4463, BS 4320B, DIN 7603A