Internal Hex, External Hex, Hex, TX, External Torx
Imperial, Metric, AF, Torx, SAE
3/16 ", 7/16 ", 5/8 ", 9/16 ", 28 mm
1/4, 1, 1-1/2, 3/4, 2-1/2
25.4, 38.1, 9.53, 12.5, 19.05
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Gun-metal, Oxidised, Black Phosphate, Black Oxide