Internal Hex, External Hex, Hex, TX, 6-Point
Torx, AF, Imperial, SAE, Metric
9/32 ", 5/8 ", 5/16 ", 32 mm, 9 mm
9.53, 12.5, 6.35, 19.05, 38.1
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Gun-metal, Phosphatized, Oxidised, Black Phosphate, Black Oxide