3585-04CN168 - Helicoil ® Threaded Insert by Stanley ® Engineered Fastening

The Heli-Coil 3585-04CN168 by Stanley Engineered Fastening is a military-standard screw-locking tanged insert engineered to establish high-strength, permanent internal threads in low-density parent materials like aluminum, magnesium, and plastic. Precision cold-rolled from high-grade 304 stainless steel wire with a distinctive diamond-shaped cross-section, this wire thread insert compensates for pitch and angle variances to optimize joint load distribution. Its specialized screw-locking configuration incorporates one or more straight segments or chords on the internal coils that apply a resilient, self-locking torque onto the male fastener, preventing it from backing out or loosening under intense vibration, shock, or thermal cycling. This insert creates a permanently wear-resistant thread that shields critical industrial, automotive, and electronic assemblies from thread stripping and structural failure without requiring expensive lock-washers or auxiliary locking compounds.

Screw-Locking Mechanism Grips the male bolt or screw with a resilient internal locking thread, ensuring a secure, vibration-proof joint without the need for lock-washers or auxiliary locking devices.

Tanged Configuration Features a traditional driven installation tang that provides positive mechanical engagement with standard mandrels during the seating process into the tapped hole.

High Structural Integrity Automatically expands outward upon installation to anchor itself permanently, providing wear-resistant threads that dynamically adapt to material expansion and contraction.

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.