Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, AF, Imperial, Metric, SAE
15/16 ", 5 mm, 3/16 ", 18 mm, 1-1/2 "
12.5, 25.4, 6.35, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide