Product review (1 stars): Pure garbage, but the only replacement part available
This item is plastic Chinese made garbage. It takes a mounting different nut [not supplied] so I took it to the hardware store to get the right nut. It is so badly made that the threads for the retaining nut allow the nut to skip off the threads when even slight tightening pressure is applied. The nut slipped off and the switch fell out of the bracket the first time I pushed the button, and I had to disassemble the thing all over again. (A workaround is to wrap the threads with teflon tape to tighten it up.) Unfortunately, there is no alternative to buying this piece of junk if you need one. It is not the selling vendor's fault that it is so bad. They only sell it, they don't make it.