External Tooth, Plain Washer, Full Washers, Form A, Flat Washers
Fibre, Brass, 301 Stainless Steel, TPE, Stainless Steel
28 mm, 3/4" X 3" X 1/4", 15.5 mm, 6.9 mm, 11.88 mm
21 mm, 10.5 mm, 2.25 mm, 13 mm, 6.5 mm
1.8 mm, 3.5 mm, 8.1 mm, 2.5 mm, 0.28 mm
M16, M3 (Form A), M5 (Form A), M2, M2.5
DIN 6797A, DIN 6797J, BS 4320B, DIN 125A, DIN 7603A