Internal Tooth, External Tooth, Tap Washer, Full Washers, Form A
301 Stainless Steel, TPE, Stainless Steel, Copper, Brass
3/4" X 3" X 1/4", 15.5 mm, 12 mm, 6.9 mm, 11.88 mm
6.4 mm, 2.25 mm, 13 mm, 8 mm, 6.5 mm
0.28 mm, 0.6 mm, 8.1 mm, 1 mm, 1.6 mm
M3, M5 (Form A), M5, M2, M2.5
BS 4320, DIN 7980, DIN 6797J, BS 4320B, BS 4463