If you are in need of nylon insert locknuts, you’re in luck! Monster Bolts has what you need for your project. These locknuts contain a nylon collar that resists turning, which assists them in retaining their locking ability. For a durable choice, consider these locknuts. Whether you need them to be in metric measurements or U.S. measurements, we can help. We proudly offer both so you don’t have to look both high and low to find an option that will meet your needs. We also offer both stainless steel and black oxide steel, so you can choose the best fit for your project. Shop now!