Unistrut nuts are available with a variety of hole sizes, to accept a range of hex head cap screw (hex bolt) sizes. The length of the spring helps determine which channel profiles the spring nut can be used in: longer springs for deeper channels and shorter for shallow channel.Ĭhannel nuts, including spring nuts, typically have a threaded hole in the middle which is used to attach fittings to the strut. The spring takes up the extra space inside the channel, keeping the nut flush against the inturned edges of the channel, so you don't need an extra hand to hold it in place, while you're busy trying to affix parts and tighten them down. What is a spring nut you ask? Pretty much what it sounds like: it’s a channel nut, with a spring on one side, that slides inside of a piece of strut channel. There are two basic categories that channel nuts fall into: channel nuts without springs, and channel nuts with springs, or spring nuts. So it’s important to know what your options are, when it comes to choosing the right fasteners for the job. Despite that fact, Unistrut hardware is an integral part of the core functionality of the Unistrut system – especially spring nuts and channel nuts. When most people think of metal framing systems, they tend to only think about the Unistrut channel and the Unistrut fittings. The Spring Nut is a Key Component of the Unistrut Metal Framing System
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