External Tooth, Cup, Lock Washer, Full Washers, Form A
301 Stainless Steel, Stainless Steel, TPE, Steel, Brass
20 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
2.2 mm, 6.4 mm, 5.36 mm, 2.25 mm, 6.5 mm
0.4 mm, 1.8 mm, 3.5 mm, 0.6 mm, 2.5 mm
M20, M3 (Form A), M24, M5 (Form A), M5
DIN 7980, BS 4463, ASME B18.22.1
ASTM F844, ASME B18.8.1, DIN 7603A