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 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.