BOXBOLT is a fully tested and approved blind fixing solution for connecting in to a steel cavity, whether it be hollow section steelwork or where access is restricted to one side only. The BOXBOLT cavity fixing is suitable for use with rectangular, square and even circular hollow sections. The BOXBOLT features a hexagon head design to aid installation with a standard spanner but also allows it to be installed with our uniquie BOXSOK installation tool for when installation time needs to be kept to an absolute minimum.
The BOXBOLT is available in three finishes, these are: Zinc Plated, Hot Dip Galvanised or Stainless Steel. These finishes combined with three lengths of BOXBOLT make it extremely flexable to suit its environment and application.
BOXBOLT is CE certified in compliance with Regulation 305/2011/EU of the European Parliament and of the Council of 9 March 2011 (the Construction Products Regulation or CPR). BOXBOLT is also approved for use by Lloyds Register (LR) type approval.
BOXBOLT complies with the DIN 18800 and Eurocode 3 design methods for bolted steel connections. A design guide and calculator is available when using these methods, please ask our technical team for more information.
Why use BOXBOLT Blind Fixing?
No Access to both sides of the connection required.
Connection can be made blind for connections into hollow section or where access is restricted.
No through bolting or strapping required reducing fabrication work.
No need for close tolerance holes or tapping.
New holes can be drilled quickly on-site if required.
Flexibility and reduced on-site installation time.
No special tools required - two spanners only.
No hire/purchase of specialist equipment or the need to move around heavy equipment.
Reduction in installation cost and administration.
Installation by semi-skilled labour.
Connections can be made much quicker without special skills or equipment.
Reduction in labour and hire costs.
Only BOXBOLT head visible when installed.
Flexibility in Architectural design.
Approved for use by Lloyds Register Type
Third party accreditation for use in tensile and shear applications.
Confidence that the connection will perform as stated without site proof testing required.
Exceptional Shear loading performance.
Less BOXBOLT fixings can be used to make shear connections.
Flexibility in design and possible cost reductions.
AISC and Eurocode 3 Method for designing connections.
Provides a simple to follow design procedure that is the same as standard bolted connections.
Designers easily recognise the method and can save costs on competitive methods.
What is the advantage of using your Hollow Bolt type fixing?
Avoids welding, using a sleeve or through bolting and distorting the section.
Is the BoxBolt available with a countersunk socket head?
Yes our Hollow Bolt type fixing is available with Countersunk, Button Head and Socket Head Cap Screw as well as the standard Hexagon Head.
Is your Hollow Bolt type fixing for Box Section only?
No it can be used into any steel where access is restricted to one side only.
Where can I buy the BoxBolt?
All sizes of the BoxBolt are stock items and are available through our distribution network. For information on your closest distributor please contact our sales office on +44 (0)1384 632 188.
Can I re-use the BoxBolt?
No, however it can be removed and the hole in the steel used again with another BoxBolt. Some blind bolt type fastening systems alter the properties and shape of the steel, even when the BoxBolt is removed the hole in the steel remains in good condition.
Can the BoxBolt be removed?
Yes, quite easily. If you remove the core bolt the cone will fall away and the body section can be prized out of the hole. Typically you would have to use a screw driver or a crowbar to lever under the collar section.
Can the BoxBolt be used in any shape of SHS?
The BoxBolt can be used with rectangular, square, circular and oval shaped sections
Can the BoxBolt be used with slotted holes?
Yes as long as the slotted hole is only in the outer material and a standard clearance hole is used on the box section. If there is any shear load this needs to be perpendicular to the direction of the slot.
Can the BoxBolt be used in concrete?
No, the BoxBolt is intended only to be used where there is a cavity. As the cone is pulled up and into the body of the BoxBolt the fins require room to expand. If used in concrete the fins would not expand properly and the BoxBolt would not work as intended.
What is the finish on the BoxBolt?
The mild steel BoxBolt has two different finish options, zinc plated or hot dip galvanized. Also they are available in Stainless Steel Grade 1.4401 (316). When ordering please specify which finish you require.
What materials are available?
The standard BoxBolt is manufactured from mild steel. The material specification for the body and the cone is mild steel to BS EN 10083 Grade 1.1151. The core bolt manufactured from high tensile steel Grade 8.8. The Stainless Steel BoxBolt is manufactured in Grade 1.4401 (316).