Product Description
The HELI-COIL 1185-4CN375SF is a high-performance free-running tanged wire thread insert designed to create strong, wear-resistant internal threads in low-shear material components. Manufactured from 304 stainless steel, this 1/4-20 UNC thread insert features a 1.5D nominal length along with a specialized dry film lubricant coating, drastically reducing friction, minimizing thread galling, and ensuring smooth, consistent fastener installation in critical assemblies.
Free-Running Design allows smooth, unhindered bolt threading while distributing tensile loads evenly across the entire engaged length.
304 Stainless Steel delivers durable corrosion protection and structural integrity in demanding industrial and automotive environments.
Dry Film Lubricant Coating significantly reduces torque resistance and guards against galling during assembly and service cycles.
Precision Tanged Structure provides a built-in driving prong to enable quick, standardized installation using conventional tanged inserters.
Load-Balancing Coil Construction compensates for thread pitch and lead errors to increase the overall shear strength of tapped receiving holes.
Product Specs
- SKU:
- 1185-4CN375SF
- Thread Size (Inch):
- 1/4-20 (0.250 Inch)
- Thread:
- UNC (Unified Coarse Thread)
- Overall Insert Length (Decimal Inch):
- 0.375
- Tang:
- Tanged
- Material:
- 304 Stainless Steel
- Number of Free Coils:
- 5.75
- Length to Diameter Ratio:
- 1.5D
- Coating/Finish:
- Dry Film Lubricant
