Internal Tooth, Mudguard, Lock Washer, Full Washers, Form A
TPE, Vulcanised Fibre, Brass, Copper, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
6.4 mm, 13 mm, 16.2 mm, 5.36 mm, 6.5 mm
1.8 mm, 8.1 mm, 0.4 mm, 2.5 mm, 1.6 mm
M20, M24, M5 (Form A), M6, M8
BS 4463, BS 4320G, DIN 7603A, BS 4320B, BS 4320