Internal Tooth, Spring, Crinkle, Full Washers, Form A
Steel, Stainless Steel, TPE, Nylon, Brass
3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 20 mm, 11.88 mm
2.2 mm, 3 mm, 6.4 mm, 5.36 mm, 6.5 mm
1.6 mm, 1.4 mm, 5.8 mm, 3.5 mm, 0.3 mm
M20, M3 (Form A), M5, M5 (Form A), M2
DIN 6797A, BS 4320, DIN 127B, BS 4320G, BS 4320B