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