The CADDY ROD LOCK provides a quick and economical solution for installing electrical and mechanical systems supported by threaded rod. The system includes the CADDY ROD LOCK beam clamp and channel nut and features a breakthrough "push-install" design to help reduce installation time. The system can even be used on threaded rod with slightly damaged threads or minor burrs.
http://www.erico.com/public/library/Fixing/LT32046.pdf
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