Una Drive Lock Nut, Drive Type Hex, Thread Size 5/8 In. -11, Material Steel, Material Grade/Class Grade 5, Finish Waxed Zinc Plated, System of Measurement Inch, Dimensional Standards ASME B 18.16. 6, Pack Size Small Pack, Removable Yes, Package Quantity 50. This item has been restricted from sale in the following state (s): []