Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, AF, Imperial, SAE, Metric
8 mm, 15/16 ", 3/16 ", 5.5 mm, 10 mm
6.35, 9.53, 25.4, 19.05, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide