Product Description
The Heli-Coil® 1191-8EN500 is a tanged, free-running wire thread insert precision-manufactured from Nitronic 60 stainless steel. Engineered to establish high-strength, anti-galling 1/2-20 UNF fine internal threads in low-density parent metals such as aluminum and magnesium, this insert features a tanged design for reliable driving and precise installation depth control. Its high-performance Nitronic 60 alloy composition provides exceptional galling resistance and wear protection without requiring secondary coatings or lubricants, ensuring smooth fastener engagement and long-term joint integrity in demanding, high-load applications.
Tanged Wire Construction provides a sturdy driving notch for controlled installation and precise positioning within tapped holes.
Nitronic 60 Stainless Steel offers superior resistance to galling, thread seizing, and wear under continuous high-load operations.
Free-Running Thread Profile allows standard male fasteners to pass through smoothly without applying friction locking torque.
1/2-20 UNF Fine Threading reinforces soft parent metals and protects fine-pitch tapped holes against wear and stripping.
1D Nominal Length Ratio delivers optimal load distribution and thread engagement depth in compact structural assemblies.
Product Specs
- SKU:
- 1191-8EN500
- Thread Size (Inch):
- 1/2-20
- Thread:
- UNF
- Overall Insert Length (Decimal Inch):
- 0.500
- Tang:
- Tanged
- Material:
- Nitronic 60
- Number of Free Coils:
- 7-7/8
- Length to Diameter Ratio:
- 1:1
