Internal Torx, External Hex, Hex, TX, 6-Point
Imperial, AF, Torx, Metric, SAE
6 mm, 9/32 ", 13/16 ", 9/16 ", 1-1/2 "
1/4, 3/4, 1-1/2, 2-1/2, 3/8
38.1, 25.4, 6.35, 19.05, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide