The Zap Screwlok System is a shear screw mechanical splice designed for connecting existing bars or patch and repair applications. Its simple structure is engineered for ease of use and requires no specialized equipment for installation. The wedge shape allows for full performance regardless of orientation.

The Zap Screwlok comes in multiple variations to suit a range of project and construction challenges. Common uses of this system include retrofitting or repairing existing structures, eliminating expensive rebar welds, connecting bars across closure pours, and more.