Internal Torx, Internal Hex, External Hex, TX, Hex
Torx, AF, Metric, Imperial, SAE
7/16 ", 15/16 ", 5/16 ", 11 mm, 23 mm
3/8, 2-1/2, 1-1/2, 1/2, 1/4
38.1, 9.53, 19.05, 6.35, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide