Type Countersunk Hollo-Bolt


The ''Countersunk Head'' version of  the Hollo-Bolt is suitable for hollow sections or conventional steelwork where access is available from one side only.

It also ensures that the fixing protrusion from the steelwork is kept to a minimum whilst still using a plain drilled hole in the supporting section and the outer plate / bracket.

Installation with standard tools is quick and simple and the final arrangement is neat and unobstrusive.

Awarded the Design Council’s Millennium Product status for innovation in the year 2000. 

Available in sizes M8 to M16.


Mild Steel, Stainless Steel Grade 316.


Bright zinc plated plus JS500.

Core Products