Internal Tooth, Cup, Full Washers, Form A, Flat Washers
301 Stainless Steel, Nylon, Brass, Steel, Copper
4.51 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
5.36 mm, 2.25 mm, 13 mm, 4.36 mm, 6.5 mm
0.16 mm, 1.8 mm, 2.5 mm, 1.1 mm, 1.6 mm
M3 (Form A), M24, M5 (Form A), M6, M2
DIN 6798J, BS 4320, BS 4320B, BS 4463, ASME B18.21.1