Internal Torx, Internal Hex, External Hex, Hex, TX
Imperial, AF, Torx, SAE, Metric
9/32 ", 5/16 ", 11/16 ", 23 mm, 29 mm
38.1, 9.53, 19.05, 12.5, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphated, Oxidised, Black Phosphate, Black Oxide