Product Description
The HELI-COIL 1191-7CN438 is a high-performance free-running tanged wire thread insert designed to establish durable, high-strength internal threads in parent materials prone to wear or thread stripping. Precision-wound from Nitronic 60 stainless steel, this 7/16-14 UNC thread insert features a 1.0D nominal length with a plain finish, offering inherent anti-galling properties and high-temperature performance without requiring external lubricants or surface coatings.
Free-Running Design allows smooth, unhindered fastener insertion while distributing static and dynamic loads evenly across all engaged threads.
Nitronic 60 Stainless Steel provides superior galling resistance, wear protection, and thermal stability in high-friction assembly environments.
Precision Tanged Structure incorporates a built-in drive tang to facilitate rapid, standardized installation using conventional tanged insertion tooling.
Compact 1.0D Length provides high-strength thread reinforcement tailored for shallow tapped holes where space and weight are key constraints.
Load-Balancing Diamond Wire compensates for pitch and lead errors to optimize tensile distribution and maximize thread shear strength.
Product Specs
- SKU:
- 1191-7CN438
- Thread Size (Inch):
- 7/16-14 (0.4375 Inch)
- Thread:
- UNC (Unified Coarse Thread)
- Overall Insert Length (Decimal Inch):
- 0.438
- Tang:
- Tanged
- Material:
- Nitronic 60 Stainless Steel
- Number of Free Coils:
- 4.25
- Length to Diameter Ratio:
- 1.0D
- Coating/Finish:
- Plain
