Internal Tooth, Cup, Plain Washer, Full Washers, Form A
Ceramic, Vulcanised Fibre, TPE, Stainless Steel, Steel
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 13 mm, 8.4 mm, 2.25 mm, 6.5 mm
0.7 mm, 2.5 mm, 8.1 mm, 1.1 mm, 1 mm
DIN 7980, ASME B18.8.1, DIN 125A, BS 4320B, DIN 7603A