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