NAS1130-08L15DSF - Screw Threaded Insert by Helicoil Stanley Engineered Fastening

The Heli-Coil NAS1130-08L15DSF by Stanley Engineered Fastening is a high-performance, military-standard tangless screw-locking insert optimized for reinforcing or restoring coarse internal threads in low-strength parent materials. Meticulously cold-rolled from premium 304 stainless steel wire with a precision diamond-shaped cross-section, this wire thread insert compensates for pitch and angle variances to optimize joint load distribution. Designed with an advanced screw-locking configuration, it features a series of specialized straight segments or chords on one or more of the coils that apply a resilient, self-locking torque to the male fastener, preventing it from loosening under extreme vibration, impact, or thermal shock. 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). Optimized for high-volume production, it features a convenient strip-feed packaging configuration that aligns the inserts on a continuous plastic carrier strip for seamless integration with automated or semi-automated power installation tools. 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).

Screw-Locking Mechanism Grips the male bolt or screw with a series of specialized straight segments on the coils, ensuring a secure, vibration-proof joint without the need for lock-washers or auxiliary locking devices.

Strip-Feed Packaging Aligns wire thread inserts on a continuous plastic carrier strip to drastically accelerate assembly throughput when integrated with power installation tooling.

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