Internal Tooth, Cup, Lock Washer, Full Washers, Form A
Fibre, Steel, TPE, Vulcanised Fibre, Brass
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 5.3 mm, 17 mm, 4.36 mm, 6.5 mm
5.8 mm, 0.6 mm, 0.16 mm, 1.8 mm, 0.5 mm
M10, M24, M5 (Form A), M2.5, M3
BS 4320, BS 4320G, DIN 6797J, DIN 7603A, BS 4320B