Internal Torx, Internal Hex, External Hex, TX, Hex
Torx, AF, Metric, Imperial, SAE
7/32 ", 9/32 ", 5/16 ", 5/8 ", 11/16 "
9.53, 38.1, 6.35, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide