Internal Torx, Internal Hex, External Hex, Hex, TX
AF, Torx, Imperial, SAE, Metric
7/16 ", 5 mm, 5.5 mm, 15 mm, 9/16 "
12.5, 6.35, 25.4, 9.53, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide