Product Description
The Heli-Coil NAS1130-4FL10D is a high-performance free-running wire thread insert engineered to deliver superior structural thread reinforcement in lightweight alloys and composite materials. Precision-formed from corrosion-resistant 304 stainless steel wire, this tanged insert features a diamond-shaped cross-section that expands to create a permanent, load-bearing thread profile. The free-running design allows for unrestricted bolt rotation, ensuring smooth assembly while effectively distributing operational stress across the parent material to prevent thread stripping, galling, and seizure in critical aerospace or high-vibration environments.
Free-Running Threading Provides a smooth, non-locking internal thread profile that allows for rapid bolt installation and removal without rotational resistance.
Tanged Installation Anchor Equipped with an integrated driving tang on the lead coil to ensure positive engagement with installation tooling and accurate depth control.
Corrosion-Resistant SteelConstructed from 304 CRES (Corrosion Resistant Steel) to withstand harsh atmospheric conditions and prevent oxidation in long-term structural assemblies.
Optimized Load Distribution Dynamically adapts to the parent material, spreading bolt tension evenly across the entire length of the insert to shield soft alloys from stripping.
Product Specs
- SKU:
- NAS1130-4FL10D
- Thread Size (Inch):
- 0.250
- Thread:
- 1/4-28 UNF
- Overall Insert Length (Decimal Inch):
- 0.375
- Tang:
- Tanged
- Material:
- 304 Stainless Steel
- Number of Free Coils:
- 5
- Length to Diameter Ratio:
- 1.5:1
- Coating/Finish:
- None (Plain)
