Internal Torx, External Hex, Internal Hex, TX, Hex
AF, Imperial, Torx, SAE, Metric
12 mm, 7/16 ", 5/8 ", 26 mm, 35 mm
3/4, 1-1/2, 2-1/2, 3/8, 1
9.53, 6.35, 12.5, 25.4, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide