External Torx, Internal Hex, Internal Torx, Hex, TX
AF, Metric, Torx, Imperial, SAE
5.5 mm, 18 mm, 11/16 ", 34 mm, 35 mm
38.1, 25.4, 9.53, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide