Hex Nut Hex Type Standard Hex Finish Zinc Plated Material Grade/Class Grade 5 Material Steel Thread Size 5/8 In.-11 Hex Width 15/16 in Hex Height 35/64 in Dimensional Standards ASME B18.2.2 System of Measurement Inch Thread Direction Right Hand Pack Size Small Pack Removable Yes Rockwell Hardness C24 to C32 Thread Type Coarse Package Quantity 400