Hex Nut Hex Type Standard Hex Finish Black Oxide Material Grade/Class Grade 5 Material Steel Thread Size 1/4 In.-28 Hex Width 7/16 in Hex Height 7/32 in Manufacturer Location Made in USA Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Color Black Made in North America Yes Pack Size Small Pack REACH Compliant Yes Removable Yes RoHS Compliant Yes Thread Type UNF Package Quantity 100