Internal Torx, External Hex, Hex, TX, External Torx
Imperial, Metric, Torx, AF, SAE
9/16 ", 7 mm, 7/16 ", 5/8 ", 11/16 "
1-1/2, 2-1/2, 1/2, 3/4, 1
9.53, 38.1, 6.35, 19.05, 25.4
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide