5513-100 5/16"-18 Stud to Post Conversion (50 Pairs) - Converts stud to post positive & negative. Lead standard post with steel insert for durability, the Nut features a nylon locking insert to prevent slippage or loosening. Post size is Per SAE J537, 13/16" flats.
Warning: This product may expose you to chemicals including lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov