Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, Metric, AF, Imperial, SAE
9/32 ", 11 mm, 13/16 ", 9/16 ", 23 mm
6.35, 9.53, 12.5, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide