Internal Hex, Internal Torx, External Hex, Hex, TX
AF, Torx, Metric, Imperial, SAE
13/16 ", 5.5 mm, 5/16 ", 11/16 ", 9 mm
3/8, 1-1/2, 3/4, 1, 2-1/2
25.4, 19.05, 9.53, 38.1, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide