Internal Torx, External Torx, External Hex, Hex, TX
AF, Torx, Imperial, SAE, Metric
7/16 ", 5/8 ", 9/16 ", 23 mm, 1-1/2 "
19.05, 9.53, 38.1, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide