Internal Hex, External Hex, Hex, TX, External Torx
Torx, AF, Imperial, SAE, Metric
5/8 ", 3/16 ", 17 mm, 1-1/2 ", 11/16 "
38.1, 19.05, 25.4, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide