Internal Hex, Internal Torx, External Hex, Hex, TX
Torx, AF, Imperial, SAE, Metric
15 mm, 9/16 ", 11/16 ", 11 mm, 1-1/2 "
19.05, 38.1, 12.5, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Oxide, Black Phosphate