Description
The SpecialInsert F1 B38 Female Fastener is part of our Core Range of stocked adhesive bonding fasteners — engineered for fast, drill-free installation on a variety of substrates. Featuring a 38mm (1.5″) round base and 1/4″-20 internal thread, this zinc-plated steel fastener provides a secure, corrosion-resistant mounting point ideal for both structural and aesthetic applications.
Perfect for signage, marine, aerospace, and OEM fabrication, F1 female fasteners bond directly to your surface using high-strength adhesives — eliminating the need for welding or drilling while maintaining structural integrity and appearance.
View the full Core Range collection → chemical-concepts.com/collections/core-range-fasteners
Key Features & Benefits
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Drill-free installation: Bonds directly with adhesive — no welding, rivets, or through-holes needed.
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1/4″-20 female thread: Accepts standard bolts and threaded hardware for easy integration.
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38mm (1.5″) round base: Large bonding area ensures strong adhesion and even load distribution.
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Zinc-plated steel construction: Provides excellent strength and corrosion resistance.
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Compatible with structural adhesives: Pair with LORD® 406/19, Chem-Set™ Ultralok 420GB, or Araldite® 2053-05.
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Suitable for through-hole or blind-hole configurations.
Technical Specifications
| Property | Specification |
|---|---|
| SKU | CCH-F1B38-1/4-20 |
| Base Diameter | 38 mm (1.5 in) |
| Base Type | Round, Standard |
| Thread Type | 1/4″-20 UNC |
| Thread Style | Female (Hex Nut Type) |
| Material | Zinc-Plated Steel |
| Mounting Method | Adhesive Bonding |
| Recommended Adhesives | LORD 406/19, Chem-Set Ultralok 420GB, Araldite 2053-05 |
| Compatible Configurations | Through-hole or blind-hole |
| Operating Temperature Range | –55°C to +120°C (–67°F to +248°F) |
Compatible Substrates
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Aluminum and stainless steel
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Composites and FRP panels
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Powder-coated metals
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ABS, PVC, and polycarbonate plastics
- Concrete, Brick, Stone
Applications
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Channel letter and sign assemblies
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Marine and transportation interiors
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Industrial enclosures and housings
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Aerospace and defense structures
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Fixture and panel mounting in OEM assemblies
Packaging & Ordering
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Unit of Measure: Each
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Material: Zinc-Plated Steel
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Base Size: 38mm round
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Thread: 1/4″-20 female
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Stock Availability: Part of our Core Range for quick delivery
Browse all stocked Core Range bonding fasteners →
Adhesive Recommendations
| Adhesive | Composites | Plastic | Metal | Natural Stone | Glass* |
|---|---|---|---|---|---|
| LORD 406/19 | ● | ● | ● | ○ | ○ |
| Chem-Set™ Ultralok 420GB | ● | ● | ● | ○ | ○ |
| LORD 310A/B | ○ | ○ | ● | ● | ○ |
| Huntsman Araldite 2053 | ● | ● | ● | ● | ○ |
Primer recommended for optimal bond on glass
Why Choose Chemical Concepts
- Stocked Core Range: Popular sizes available for immediate shipment
- Industrial-Grade Quality: Trusted by aerospace, marine, and OEM manufacturers
- Expert Support: Our technical team helps with adhesive selection and fastener specification
800-220-1966 | ✉️ [email protected]
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