Don't reuse old rusty bolts when installing aftermarket control arms when you can replace them with new ones. Our kit includes new high grade hardware for installing your new upper and lower A-Arms. Kit includes Grade 10.9 bolts, flat washers and nylon lock nuts. All hardware is zinc coated to prevent corrosion while adding a great look to your installation. Hardware kit will work on UMI A-Arms, factory A-Arms and many other brands.