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Composi-Lok fasteners
Composi-Lok fasteners

Composi-Lok Fasteners

Composi-Lok Fasteners are advanced structural blind fastening solutions engineered for applications where one-sided installation, high joint reliability, and material protection are critical. These fasteners are extensively used in aerospace and advanced industrial structures, especially where composite materials are involved and rear-side access is restricted.

Designed for demanding environments, Composi-Lok fasteners provide controlled clamp-up, excellent vibration resistance, and long-term joint integrity, making them suitable for safety-critical assemblies.

How Composi-Lok Fasteners Function

  1. The Composi-Lok fastener is inserted from the accessible side of the assembly.

  2. During installation, the internal pin is activated using a controlled installation tool.

  3. The fastener expands on the blind side, forming a wide and stable bearing surface.

  4. The pin locks in place once the required clamp load is achieved, creating a permanent, vibration-resistant joint.

This mechanism ensures consistent performance, minimal material stress, and reliable load transfer.

Material Options & Compatibility For Composi-Lok Fasteners

To suit demanding environments and prevent material interaction issues, Composi-Lok fasteners can be manufactured using:

  • Titanium alloys for strength-to-weight optimization

  • Corrosion-resistant stainless steels (CRES)

  • Other aerospace-approved materials as per application needs

These options help ensure compatibility with composite and metallic structures, minimizing the risk of galvanic corrosion.

Why Choose UPS Lakshmi To Buy Composi-Lok Fasteners?

✔ Deep expertise in fasteners and precision machined components
✔ Proven understanding of aerospace and composite applications
✔ Focus on performance, reliability, and consistency
✔ Engineering-driven approach with customization support
✔ Trusted manufacturing partner for global customers

Frequently Asked Questions

When should Composi-Lok fasteners be preferred over traditional blind rivets?

They are ideal when higher structural strength, controlled preload, and improved vibration resistance are required compared to standard blind rivets, especially in composite-to-metal or composite-to-composite assemblies.

Are Composi-Lok fasteners suitable for aerospace structural repairs?

Yes, they are commonly used in structural repair applications where access is limited to one side and maintaining joint integrity is critical.

How do Composi-Lok fasteners help reduce damage in composite materials?

They are designed to minimize delamination and material distortion during installation, making them suitable for sensitive composite structures.

What factors should be considered when selecting a Composi-Lok fastener?

Consider joint thickness, load requirements (shear/tensile), environmental exposure, and accessibility during installation.