Internal Torx, External Hex, TX, Hex, 6-Point
Imperial, AF, Metric, Torx, SAE
9 mm, 5 mm, 3/16 ", 10 mm, 30 mm
1/2, 3/4, 1/4, 2-1/2, 3/8
19.05, 6.35, 9.53, 25.4, 12.5
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide