NAS1130-02-20 - Screw Threaded Insert by Helicoil Stanley Engineered Fastening

The Heli-Coil NAS1130-02-20 by Stanley Engineered Fastening is a military-standard tangless free-running insert designed to establish high-strength, permanent internal threads in low-density parent materials. Precision cold-rolled from high-grade 304 stainless steel wire with a distinctive diamond-shaped cross-section, this wire thread insert automatically expands elastically outward upon installation to establish a secure, spring-like retention force without requiring keying or staking. Because it is completely tangless, this wire insert eliminates the time-consuming process of breaking off and retrieving installation tangs, providing an ideal, debris-free fastening solution that protects critical electronic and aerospace components against foreign object debris (FOD). Additionally, it features a high-grade dry film lubricant coating that significantly minimizes friction, galling, and wear during installation and operation to deliver a permanent, wear-resistant thread.

Tangless Design Provides permanent, high-strength internal threads while completely eliminating the traditional need for tang break-off and extraction, shielding sensitive equipment from foreign object debris (FOD).

Free-Running Profile Delivers a clean, conventional internal thread track that allows standard mating bolts and fasteners to turn completely unhindered without added friction or torque resistance.

Dry Film Lubricant Greatly reduces friction during installation and prevents thread binding, galling, and wear under heavy cyclic loads.

Resilient Wire Construction Utilizes a continuous helically wound diamond profile that distributes stresses evenly across the tapped parent material to shield assemblies from thread stripping and wear.