Internal Torx, Internal Hex, External Hex, TX, Hex
AF, Imperial, Torx, SAE, Metric
9/16 ", 5/8 ", 9 mm, 30 mm, 11/16 "
3/8, 3/4, 1-1/2, 2-1/2, 1
38.1, 9.53, 25.4, 6.35, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide