Working on a chassis, frame, or metal fabrication project? These weld-on nuts are super handy! This pack includes 10 steel nuts with 1/2-13 threads, designed specifically for welding onto metal surfaces. Made by Bryke Racing, part number 303-360L. Each nut has a 'big OD' of 1 inch and 'small OD' of 0.750 inches, with a length of 1.125 inches. The design includes tabs that make them easy to position and weld in place. Once welded, you have a solid, threaded mounting point that's much stronger than just tapping holes in thin metal. Perfect for automotive applications (race cars, off-road vehicles), machinery, furniture, or any project where you need durable threaded inserts in sheet metal or tubing. These are brand new, unused, and come in their original packaging. No UPC. Much more professional than makeshift solutions, and having 10 in a pack means you can do multiple mounting points or have spares. Weld them in, and you've got rock-solid threaded connections that won't strip out like sheet metal threads. A fabricator's best friend!