Internal Tooth, Crinkle, Full Washers, Form A, Flat Washers
Fibre, Brass, TPE, Stainless Steel, Steel
3/4" X 3" X 1/4", 7.99 mm, 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 5.36 mm, 13 mm, 4.36 mm, 6.5 mm
0.6 mm, 8.1 mm, 0.16 mm, 2.5 mm, 0.28 mm
M16, M24, M2, M5 (Form A), M3
BS 4320:1968, DIN 127B, BS 4320G, BS 4320B, ASME B18.21.1