These Heli-Coil thread inserts are superior thread-forming fasteners designed to create strong, reliable threads in a variety of materials. Each insert features a special nut with 4 sharp spiral flutes that cut into the metal to hold the insert firmly in place, allowing bolts to be screwed down securely without the need for conventional drilling and tapping.
Sold in a convenient 12-pack, these 1/4-28 UNF inserts are ideal for repair, reinforcement, or original equipment manufacturing applications where durable threaded connections are required. A cost-effective solution for restoring stripped threads or installing new threads in softer materials.