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BoxBolt fixings are a blind fixing solution for connecting to hollow section steelwork or where access is restricted to one side only. The BoxBolt fixing is suitable for use with rectangular, square and even circular hollow sections. The BoxBolt features a hexagon head design on the body to aid installation with a standard spanner but also allows it to be installed with our unique BoxSokTM installation tool for when installation time needs to be kept to an absolute minimum.

BoxBolt is available in M08,M10,M12,M16 and M20 bolt diameters and is also available in three lengths for each size. The different lengths allow for a large fixing range (dim X) but also provide an additional feature in that the fixing ranges between size 1 to 2 and 2 to 3 overlap for applications where the exact fixing thickness is difficult to determine.



Guaranteed Safe working load
5 to 1 Factor of Safety
Lloyds Register approved
Hexagon Head for ease of installation
Optimisation of setscrew length to provide large fixing range
Installation with one tool only when used with BoxSok


BoxBolts can be removed afterwards should this be required, although the bolt will need to be replaced with a new one.

The setscrew running through the centre of the BoxBolt body can be replaced with a threaded rod or eyebolt to allow a fixing point on the outside of the steelwork. For common applications of the BoxBolt please see our applications section.

The standard BoxBolt range is manufactured from mild steel with an electro zinc plated finish.


BoxBolt & BoxSok, BoxBolt Technical Specifications, BoxBolt & BoxSok Installation