BoxBolt® Technical Information

Technical Data for Choosing the Correct BoxBolt Blind Fasteners

The technical data below contains all the information necessary for selecting the correct BoxBolt blind fasteners.

• The load carrying capacity of the assembly depends on the type of section used and its cross-section
• The permissible load is limited by the permissible load of the weakest component in the assembly, namely the section itself in the case of thin wall sections, or the BoxBolt in the case of thick wall sections (or combination of the two)
• If there is any doubt, it is essential to consult a Tanner Product Specialist and/or have the application checked by a qualified Structural Engineer

BoxBolt® Quick Links

• Shop BoxBolt® Blind Fasteners
• ICC Approved BoxBolt® Type C
• The Original BoxBolt®
• BoxBolt® Technical Info
• BoxBolt® Installation Process
• BoxBolt® FAQs

The Original BoxBolt® Technical Information

*The table above shows the product codes without the finish. To select the type of finish you need, replace the "_" in the product code with "Z" for Zinc, "G" for Hot Dip Galvanized or "S" for Stainless Steel.

The Type C BoxBolt® ICC Approved Technical Information

1. When dimensions are expressed in both US Customary and SI units; BoxBolt@ dimensions in US Customary units are converted from the corresponding SI units
2. BoxBolt@ size is determined by core bolt length
3. Dimension "X" is the total thickness of the connected steel elements (or the grip); "A" is the minimum spacing between fasteners; "B" is the minimum edge distance for the fasteners; and "C" is the standard hole diameters for the fasteners

The Type C BoxBolt® ICC Approved Strength Information

1. Load and Resistance Factor Design (LRFD) strengths are derived in accordance AC437, Sections 3.4, 3.5, 3.7 and 3.8, based on test data per AC437 Section 4.0
2. Allowable Strength Design (ASD) strengths are derived in accordance AC437, Sections 3.4, 3.5, 3.9 and 3.10, based on test data per AC437 Section 4.0
3. Static dominant loads include load combinations with gravity and wind loads for structures assigned to all Seismic Design Categories and load combinations with seismic loads for structures assigned to Seismic Design Category (SDC) A, B or C
4. Seismic SDC D, E or F refer to load combinations with seismic loads for structures assigned to Seismic Design Category (SDC) D, E or F