External Tooth, Internal Tooth, Cup, Full Washers, Form A
Brass, Fibre, 301 Stainless Steel, TPE, Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.3 mm, 2.25 mm, 21 mm, 6.5 mm
1.8 mm, 0.28 mm, 0.7 mm, 2.5 mm, 0.8 mm
M6 (Form A), M20, M3 (Form A), M5 (Form A), M8
ASME B18.8.1, DIN 127B, BS 4320:1968, DIN 7980, BS 4320B