Internal Torx, Internal Hex, External Hex, Hex, TX
AF, Torx, Imperial, Metric, SAE
7/32 ", 5/8 ", 7/8 ", 8 mm, 9/16 "
9.53, 25.4, 19.05, 6.35, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Gun-metal, Oxidised, Black Phosphate, Black Oxide