Internal Torx, External Hex, Hex, TX, 6-Point
Torx, AF, Imperial, Metric, SAE
9/32 ", 7/16 ", 5/16 ", 11/16 ", 33 mm
1-1/2, 3/4, 1, 2-1/2, 3/8
38.1, 25.4, 6.35, 9.53, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Phosphatized, Oxidised, Black Phosphate, Black Oxide