Design with confidence

The world’s first structural steel clamping systems approved for use in all Seismic Design Categories and compliant with the IBC.

Our ICC-ES approved products are grouped into two categories:

Girder Clamp: The world’s first and only structural steel clamping system that is approved by ICC-ES (International Code Council Evaluation Service) and compliant with the IBC (International Building Code). As a verified alternative to high-strength bolt assemblies prescribed in AISC 360, the Girder Clamp (Types AF and AAF) may be used to resist axial tension and slip due to load combinations that include wind load or seismic load in all Seismic Design Categories A, through F.

Hollo-Bolt®: Another ‘world’s first’ - invented by Lindapter and launched in 1995, the original expansion bolt for structural steel is also approved by ICC-ES for use as a structural connection in all Seismic Design Categories A to F. This labor-saving ‘blind bolt’ is designed for connecting structural steel to Hollow Structural Section (HSS) or other steel members where access is difficult or restricted to one side.