Internal Hex, External Hex, Internal Torx, TX, Hex
Imperial, Torx, Metric, AF, SAE
5 mm, 7/32 ", 3/16 ", 5/16 ", 28 mm
1, 1-1/2, 3/4, 1/2, 2-1/2
38.1, 19.05, 6.35, 25.4, 9.53
Special Steel, Molybdenum Steel, Alloy Steel, Steel, Chrome Molybdenum Alloy Steel
Phosphatized, Phosphated, Oxidised, Black Phosphate, Black Oxide