External Torx, Internal Hex, External Hex, Hex, TX
AF, Metric, Imperial, Torx, SAE
13/16 ", 5/16 ", 5 mm, 9/16 ", 36 mm
3/4, 1/2, 2-1/2, 1-1/2, 1
38.1, 25.4, 19.05, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Oxide, Black Phosphate