Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, AF, Torx, SAE, Metric
5 mm, 7/16 ", 9/16 ", 33 mm, 25 mm
38.1, 19.05, 25.4, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate