Internal Torx, Internal Hex, TX, Hex, External Torx
AF, Imperial, Metric, Torx, SAE
7/16 ", 5/8 ", 5.5 mm, 15 mm, 9/16 "
25.4, 9.53, 6.35, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Oxide, Black Phosphate