External Tooth, Internal Tooth, Plain Washer, Full Washers, Form A
Brass, Fibre, Stainless Steel, 301 Stainless Steel, TPE
37 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.1 mm, 16.2 mm, 21 mm, 4.36 mm, 6.5 mm
0.7 mm, 0.6 mm, 8.1 mm, 1.2 mm, 0.3 mm
M8, M24, M5 (Form A), M6, M4
DIN 127B, DIN 6798J, DIN 6797J, BS 4320B, DIN 7603A