Over 90 years, Lindapter has pioneered the design and manufacture of Structural Steel Clamping Systems and HSS Blind Fasteners, enabling faster steel construction. Products include Hollo-Bolt, the HSS expansion bolt approved by ICC-EC for all Seismic Design Categories (A through F); while the Girder Clamp is approved for quickly connecting W & S beams. Lindapter connections eliminate the need for time-consuming drilling or welding in the field and reduce time and labor costs.