Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Imperial, Torx, Metric, SAE
9/32 ", 6 mm, 15/16 ", 5 mm, 35 mm
38.1, 6.35, 19.05, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide