Threaded Inserts

Screw Thread Inserts

Heli-Coil^® inserts are precision-formed screw thread coils of stainless steel wire with a diamond-shaped cross section. Heli-Coil products are used with confidence in the aerospace, electronics, automotive, telecommunications, and defense industries, where quality and performance is a must.

Threaded Inserts

Dodge^® offers a full line of threaded inserts for plastics including brass inserts to suit almost any insert application in plastic. Inserts can be installed using virtually all methods of installation. 

The WELL-NUT^® threaded insert is a flanged chloroprene bushing with a brass machine nut molded into one end. Tightening a conventional machine screw threaded in the brass nut causes the insert to expand, creating a secure fastening.

The JACK NUT^® threaded insert is an economical blind fastener designed for assembly line use in thin, soft, or brittle materials. When tightened, the body collapses to form four legs which grip the inside of the mounting surface, leaving a permanent, reusable threaded insert.

Internal Thread Locking Systems

Spiralock^® is a unique and proprietary preload locking internal (female) thread form that's exceptionally resistant to transverse vibration—the primary cause of thread loosening. Ideal for a wide variety of applications.