Independent Support Clip | Acoustical, Ceiling and Partitioning, Electrical | Hex-Key Ends Are Square-Cut for a Secure Full-Depth Fit and Maximum Contact With the Hex Socket to Prevent Slippage and Stripping of the Socket | Machine Screws Form a Fastening That Is Superior in Strength to Spaced Thread Screws. for Use With a Pre-Tapped Hole or With a NutFurbay Electric Supp