Internal Torx, Internal Hex, External Hex, TX, Hex
Imperial, Torx, AF, Metric, SAE
9/32 ", 9/16 ", 23 mm, 1-1/2 ", 11/16 "
38.1, 19.05, 25.4, 6.35, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Phosphatized, Oxidised, Black Phosphate, Black Oxide