Hex Nut Hex Type Standard Hex Finish Armor Coat Material Grade/Class Grade 8 Material Steel Thread Size 1/2 In.-13 Hex Width 3/4 in Hex Height 7/16 in Manufacturer Location Made in USA Dimensional Standards ASME B18.2.2 ELV Compliant WEEE Material Quality Standards ASTM A194/A194M-2020a System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Removable Yes Resistance Properties Corrosion Resistant Rust Resistant Rockwell Hardness C33 to C39