External Tooth, Cup, Plain Washer, Full Washers, Form A
Steel, Fibre, Stainless Steel, TPE, Brass
15.5 mm, 12 mm, 6.9 mm, 20 mm, 11.88 mm
17 mm, 2.25 mm, 13 mm, 4.36 mm, 6.5 mm
0.16 mm, 3.5 mm, 8.1 mm, 0.8 mm, 0.28 mm
M2.5, M3 (Form A), M8, M5 (Form A), M10
DIN 127B, BS 4320, DIN 7603A, DIN 125A, BS 4320B