Internal Torx, Internal Hex, External Torx, TX, Hex
Torx, AF, Imperial, SAE, Metric
5/16 ", 9 mm, 9/16 ", 11/16 ", 26 mm
25.4, 9.53, 19.05, 12.5, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate