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Type HB - Hollo-Bolt

Suitable for hollow sections, tubes and where access is available from one side only. For corrosion protection the Hollo-Bolt® comes with additional JS500 protection as standard or hot dip galvanised. Sizes M16 and M20 have a patented collapse mechanism for optimised clamping force. Speedy installation with standard tools. Awarded the Design Council’s Millennium Product status for innovation in the year 2000. For full specification and installation data please download the pdf below.


Mild Steel, Stainless steel Grd 316.


Hot dip galvanised , Bright zinc plated plus JS 500

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