Product Description
The Heli-Coil 1185-04EN112 by STANLEY® Engineered Fastening is a high-performance tanged free-running wire insert engineered to reinforce and protect 4-40 UNC coarse internal threads in soft or lightweight parent metals. Cold-rolled from high-strength Nitronic 60 (H-Tronic) stainless steel wire with a precision diamond-shaped cross section, this insert offers exceptional galling and wear resistance without the need for secondary coatings or lubricants. Once installed into a standard tapped hole, the spring-like retention force of the coils creates a permanently wear-resistant connection that compensates for pitch and angle errors, ensuring optimal load distribution across the entire thread engagement length.
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Free-Running Profile: Delivers an unobstructed internal thread track that lets mating 4-40 UNC fasteners turn smoothly without added locking resistance.
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Nitronic 60 (H-Tronic) Alloy Construction: Formed from premium Nitronic 60 stainless steel to deliver superior corrosion resistance and prevent thread galling during assembly and disassembly.
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Traditional Installation Tang: Equipped with a sturdy installation tang for positive mechanical engagement and precise seating depth control using standard tooling.
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Optimized Joint Load Distribution: The flexible wire cross section yields uniform contact pressure along the engagement length, minimizing stress concentrations and extending assembly fatigue life.
Product Specs
- SKU:
- 1185-04EN112
- Thread Size (Inch):
- #4-48 (0.112)
- Thread:
- UNF (Fine)
- Overall Insert Length (Decimal Inch):
- 0.112 in
- Tang:
- Tanged
- Material:
- Nitronic 60 Stainless Steel
- Number of Free Coils:
- 3.5
- Length to Diameter Ratio:
- 1D (1 x Diameter)
- Coating/Finish:
- Plain (None)
