Internal Torx, External Hex, Hex, TX, External Torx
Torx, AF, Imperial, Metric, SAE
5/16 ", 5 mm, 9 mm, 1-1/2 ", 11/16 "
12.5, 25.4, 19.05, 9.53, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide