External Tooth, Lock Washer, Cup, Full Washers, Form A
301 Stainless Steel, Neoprene, Fibre, Brass, TPE
12.5 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 21 mm, 6.4 mm, 13 mm, 6.5 mm
0.9 mm, 5.8 mm, 1 mm, 1.8 mm, 0.7 mm
M24, M5 (Form A), M2, M12, M20
DIN 127B, BS 4320:1968, DIN 6797J, ASTM F436, DIN 7603A