External Tooth, Nylon Washers, Lock Washer, Full Washers, Form A
Brass, Ceramic, Steel, Stainless Steel, Copper
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 2.1 mm, 2.25 mm, 4.36 mm, 6.5 mm
0.16 mm, 0.4 mm, 0.6 mm, 8.1 mm, 2.5 mm
M3, M12, M24, M2, M5 (Form A)
BS 4463, DIN 6797J, BS 4320G, DIN 7603A, BS 4320B