RECOIL™ helically wound wire thread inserts can be used to strenghten threads, giving applications a longer life. With a RECOIL™ insert installed, a more even distribution of load and stress can be achieved. Each insert sharing the load over the entire bolt and hole, improving holding or pull out resistance. RECOIL™ inserts are made of type 304 stainless steel wire rolled into a diamond shape cross-section.