Internal Torx, External Torx, External Hex, TX, Hex
Imperial, Torx, Metric, AF, SAE
9/16 ", 7/16 ", 5/8 ", 7/8 ", 35 mm
25.4, 6.35, 9.53, 12.5, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide