I find the SNAPTOGGLE to be an excellent invention, easy to install, works great and give me confidence that accidents won´t happen. I recomend it to anybody installing TVs (or anything else) on a wall, be it drywall, concrete block, etc.
I love these for hanging anything on metal Studs! I would like to see MCM handle the truss head bolts that come packed with other brands of this type. This is the only reason it lost a Star. I had to procure my bolts elsewhere.
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MCM Electronics gave me terrific service and great prices. I will cheerfully shop with them again for my electronic needs.