Internal Hex, Internal Torx, External Hex, Hex, TX
AF, Torx, Metric, Imperial, SAE
7 mm, 5/16 ", 5/8 ", 34 mm, 11/16 "
19.05, 38.1, 9.53, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide