External Tooth, Internal Tooth, Plain Washer, Full Washers, Form A
Neoprene, Fibre, TPE, Copper, Brass
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
14 mm, 5.36 mm, 2.25 mm, 4.36 mm, 6.5 mm
1.2 mm, 0.4 mm, 0.7 mm, 8.1 mm, 1.6 mm
M2, M24, M5 (Form A), M6, M2.5
BS 4320B, BS 4320:1968, DIN 127B, BS 4320, ASME B18.21.1