Welcome to the home of Hollo-Bolt: the original expansion bolt for structural steel

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Hollo-Bolt by Lindapter

ICC-ES approved to resist seismic loads in all seismic design categories.

High Clamping Force Hollo-Bolt for Structural Connections

Hollo-Bolt, the original expansion bolt for structural steel offers a faster alternative to conventional SHS/HSS connection methods such as welding or through-bolting, enabling contractors to reduce construction time and labour costs.

The larger sizes M16 & M20 (5/8” & 3/4”), are optimised for structural connections and feature a patented High Clamping Force (HCF)mechanism to produce three times more clamping force than the same sized product without the mechanism. The significance of increased clamping force is illustrated in the video below:

For product specification data, please download the Brochure from the menu to the left.