How Huck® Works

How HuckBolts Work

A HuckBolt is a two-piece fastener that consists of a hardened metal pin and a metal collar that swages into the grooves of the pin, forming a specific, measured clamp force to hold assembled parts together. 

The Huck installation tool grips the pintail of a HuckBolt and then pulls to close the gaps in the materials being joined. Inside the nose assembly, a hardened-steel, conical-shaped anvil is then forced down the collar to progressively squeeze, or swage, the collar material into the grooves. 

This direct metal-to-metal contact of the collar swaged into the grooves of the pin eliminates the loosening effects of transverse vibration.

Often installs in Under 2 Seconds

Consistent, High Clamp Force

Certified Maintenance-Free Joints

High Shear, Tensile, Pin Strength

How Structural Blind Fasteners Work

Each Huck structural blind fastener is engineered with a unique set of features that deliver industry-leading solutions to common manufacturing challenges, from high-speed assembly, hole-filling, and water-resistance to needs for a wide grip, for welding replacement, and applications with one-sided access.

Installation is similar for each fastener type using our extensive line of Huck tooling and nose assemblies.

Huck structural blind fasteners insert through aligned holes of the materials being joined. The tool nose assembly grips the pintail, pulls the mandrel head towards the sleeve, causing the sleeve to expand or bulb on the blind side of the hole. This pulls the materials together, locks the mandrel and sleeve, and breaks the pintail flush with rivet head, all within a couple of seconds. 

Joins Materials With One-Side Access

Excellent Gap Pull-Out and High Retained Clamp

Industry-Leading Shear, Tensile, Pull-Out Strength