External Tooth, Internal Tooth, Lock Washer, Full Washers, Form A
301 Stainless Steel, Stainless Steel, TPE, Nylon, Brass
30 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
4.85 mm, 2.1 mm, 17 mm, 5.36 mm, 6.5 mm
5.8 mm, 0.6 mm, 1.1 mm, 0.16 mm, 0.28 mm
DIN 6797A, BS 4320B, BS 4320:1968, DIN 7980, ASME B18.8.1