Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Torx, Imperial, Metric, SAE
7/32 ", 7 mm, 12 mm, 9/16 ", 11/16 "
38.1, 9.53, 6.35, 19.05, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide