Why BoxBolt®?
BoxBolt® is a blind fixing solution that has been fully tested and approved for connecting into a steel cavity, including rectangular, square, and circular hollow sections. It features a hexagon head design that can be easily installed using a standard spanner or even quicker with a unique BOXSOK installation tool when time is limited.
BoxBolt® Hollow Section Fixings
Materials:
1Mild steel to BS EN 10083 Grade 1.1151
Stainless steel to BS EN 10088 Grade 1.4401
Finishes:
Zinc plated to BS EN 12329 Class: Fe//Zn8//A
Hot Dip Spun Galvanized to BS EN ISO 1461
Diameter and Positioning of Holes:
BoxBolt® Technical Data
The above loads are working loads that have the following Factor of Safety (FOS) Applied: Tensile = 1.925 to 1 Shear = 1.54 to 1
The loads stated above are based on our DIBt (Deutsches Institut für Bautechnik) approval document Z-14.4-482. The loads shown above are working loads based on the rated loads factored by 1.4 which is an average value between 1.35 used for static loading and 1.5 used for live loads. The rated loads stated in our approval already have a 1.375 factor for tensile and 1.1 factor for shear applied to them. This therefore means that the above loads have a 1.375 x 1.4 = 1.925 to 1 FOS in tensile and 1.1 x 1.4 = 1.54 FOS in shear. The BoxBolt is tested and approved by DIBt (Deutsches Institut für Bautechnik) which 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. The BoxBolt is also Lloyds Register type approved for use, should you require a copy of the approval certificate our technical team will be able to assist. The strength of the material our BoxBolt is connecting into should be checked for structural capacity by a structural engineer.