Replacement Expander Nut Thread Size 1/2 in Material Zinc Alloy Finish Zinc Plated Material Grade/Class Grade 5 System of Measurement Inch Compatible Anchor Type Bolt Anchors Features Bolt Can Be Removed and Re-Used with a New Nut After Cleaning and Lubricating the Threads Outside Diameter 0.5 in Series Taper Bolt Package Quantity 50