Internal Torx, Internal Hex, External Hex, TX, Hex
Torx, AF, Imperial, Metric, SAE
9/16 ", 3/16 ", 5/16 ", 5/8 ", 36 mm
6.35, 19.05, 9.53, 38.1, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Oxide, Black Phosphate