3585-02CN172 - Helicoil ® Threaded Insert by Stanley ® Engineered Fastening

The Heli-Coil 3585-02CN172 is a military-standard screw-locking wire thread insert designed to establish high-strength, wear-resistant internal threads in precision engineering applications. Formed from cold-drawn 304 stainless steel wire with a precision diamond-shaped cross-section, this tanged insert features a specialized internal locking coil with straight, resilient chordal segments. These flat sections flex outward when a male bolt is introduced, exerting a continuous, predictable prevailing torque that grips the fastener securely. This configuration delivers exceptional vibration resistance, preventing dangerous rotational loosening under harsh dynamic stress while protecting soft host materials from internal thread wear, stripping, and galling.

Internal Screw-Locking Profile Employs straight chordal segments on the locking coils that apply continuous prevailing friction to hold mating hardware tightly against severe dynamic stress.

Standard Driving Tang Engineered with an integrated driving tang on the leading coil for positive tool engagement and rapid, controlled depth placement.

Austenitic Stainless Steel Construction Crafted from work-hardened corrosion-resistant steel to create a wear-proof thread foundation that shields soft alloys from thread fatigue and stripping.

Uniform Stress Distribution Expands dynamically within the tapped hole to eliminate localized stress concentrations and distribute tension evenly across the assembly.