Internal Torx, Internal Hex, External Hex, Hex, TX
Imperial, AF, Torx, SAE, Metric
8 mm, 11/16 ", 15/16 ", 7/16 ", 5 mm
1/4, 3/4, 1, 1-1/2, 2-1/2
38.1, 6.35, 19.05, 12.5, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide