External Hex, External Torx, Internal Torx, TX, Hex
AF, Torx, Imperial, SAE, Metric
7/8 ", 5/8 ", 9/16 ", 11/16 ", 35 mm
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 Phosphate, Black Oxide