Internal Hex, Internal Torx, External Torx, Hex, TX
Imperial, Torx, Metric, AF, SAE
7/32 ", 15/16 ", 5/8 ", 3/16 ", 7/16 "
25.4, 9.53, 6.35, 12.5, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide