Internal Hex, Internal Torx, External Hex, TX, Hex
AF, Torx, Metric, Imperial, SAE
5.5 mm, 14 mm, 19 mm, 9/16 ", 26 mm
38.1, 25.4, 6.35, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide