External Hex, Internal Torx, Hex, TX, External Torx
AF, Imperial, Metric, Torx, SAE
9/32 ", 15/16 ", 7/16 ", 9/16 ", 11/16 "
25.4, 9.53, 12.5, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate