Internal Torx, Internal Hex, External Hex, Hex, TX
Imperial, Metric, Torx, AF, SAE
7/16 ", 6 mm, 9 mm, 9/16 ", 14 mm
25.4, 12.5, 38.1, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide