Product Description
The Heli-Coil® 18552-3-2 is a tanged, free-running wire thread insert precision-manufactured from 304 stainless steel with a cadmium plating. Designed to military specification standard MS51830, it forms permanent, high-strength .190-32 (10-32) UNF internal threads in low-density parent materials such as aluminum and magnesium. Featuring a tanged design for controlled driving and precise depth placement, its free-running thread profile permits standard male fasteners to pass through smoothly without friction locking torque. The cadmium plating provides exceptional corrosion resistance, galvanic compatibility, and built-in lubricity to protect critical aerospace and defense joints.
Tanged Wire Construction provides a sturdy driving notch for controlled installation and precise positioning within tapped holes.
Cadmium Plated Finish delivers superior corrosion protection, exceptional lubricity, and improved galvanic compatibility in aerospace assemblies.
304 Stainless Steel Material offers high tensile strength and durable wear protection for reusable internal threads.
Free-Running Thread Profile permits standard male fasteners to thread smoothly through the coil without applying friction locking torque.
.190-32 (10-32) UNF Fine Threading reinforces soft parent metals and repairs damaged fine internal threads to MS51830 military specifications.
Product Specs
- SKU:
- 18552-3-2
- Thread Size (Inch):
- .190-32 (10-32)
- Thread:
- UNF
- Overall Insert Length (Decimal Inch):
- 0.380
- Tang:
- Tanged
- Material:
- 304 Stainless Steel
- Number of Free Coils:
- 8-1/2
- Length to Diameter Ratio:
- 2:1
- Coating/Finish:
- Cadmium Plated
