Internal Torx, External Hex, Internal Hex, Hex, TX
Imperial, Torx, AF, SAE, Metric
7/32 ", 9/32 ", 13 mm, 34 mm, 11/16 "
19.05, 9.53, 25.4, 12.5, 6.35
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphated, Phosphatized, Oxidised, Black Phosphate, Black Oxide