Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Metric, Imperial, Torx, SAE
11/16 ", 5/8 ", 11 mm, 17 mm, 32 mm
6.35, 19.05, 25.4, 38.1, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide