Description
The SpecialInsert F2 Series are female threaded collar bonding fasteners engineered for applications that require a standoff height or extended thread engagement. The built-in collar allows for spacing between components, making these fasteners ideal for panel assemblies, enclosures, and structural bonding where both precision and load-bearing strength are critical.
The F2 line combines the same adhesive-bonded installation convenience as the M1 and F1 series but adds controlled spacing for layered panels or isolation from substrates. As part of our Core Range, these zinc-plated steel fasteners are stocked in standard sizes for quick delivery and integration with high-performance structural adhesives.
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Key Features & Benefits
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Integrated standoff collar: Provides consistent height and improved thread engagement.
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Drill-free mounting: Bonds with structural adhesive — no rivets or welding required.
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High-strength, corrosion-resistant: Zinc-plated steel body for reliable, long-term performance.
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Precision alignment: Ideal for panels requiring spacing or air gap separation.
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Compatible with industry adhesives: LORD® 406/19, Chem-Set™ 420GB, Araldite® 2053-05.
F2 Series Technical Specifications (Core Range Sizes)
| SKU | Base Size / Type | Thread Size | Standoff Height | Material |
|---|---|---|---|---|
| CCH-F2B23-1/4-20X1/2 | 23mm (0.9”) Round | 1/4”-20 | 1/2” | Zinc-Plated Steel |
| CCH-F2Y3232-1/4-20X1/2 | 32mm (1.25”) Square (RS Solid Base) | 1/4”-20 | 1/2” | Zinc-Plated Steel |
| CCH-F2B38-1/4-20X1/2 | 38mm (1.5”) Round | 1/4”-20 | 1/2” | Zinc-Plated Steel |
| CCH-F2CT38-1/4-20X1/2 | 38mm Rectangular Closed Back | 1/4”-20 | 1/2” | Zinc-Plated Steel |
(Data verified from Core Range catalog)
Recommended Adhesives by Substrate
| Substrate Type | Recommended Adhesives |
|---|---|
| Metal & Composites | LORD 406/19, Chem-Set™ 420GB, Huntsman Araldite® 2053-05 |
| Plastic & FRP | LORD 406/19, Plexus MA300, Chem-Set™ 420GB |
| Stone, Glass, Wood | LORD 310A/B, Huntsman Araldite® 2012 |
| Note: | Primer recommended for optimum bond on glass. |
Typical Applications
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Panel and enclosure assemblies
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Electronic housings and control boxes
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Aerospace and transportation panels
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Signage and structural display fabrication
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Marine and composite bonding applications
Why Choose Chemical Concepts
- Stocked Core Range: Standard sizes available for immediate shipment
- Industrial Quality: Trusted by aerospace, marine, and OEM engineers
- Technical Expertise: Application support and adhesive pairing recommendations
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