Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, Torx, AF, SAE, Metric
8 mm, 6 mm, 9/16 ", 5/8 ", 34 mm
38.1, 19.05, 9.53, 25.4, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide