Internal Hex, Internal Torx, External Torx, TX, Hex
Imperial, Metric, AF, Torx, SAE
9/32 ", 7/16 ", 5/16 ", 11/16 ", 25 mm
38.1, 25.4, 19.05, 9.53, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide