Klik Rivet-Nuts can be used in a wide range of applications and are designed to provide a very efficient and cost-effective method of placing permanent threads in thin materials. Installed from one side, Klik Rivet-Nuts are perfect for use in metal, fiberglass and rigid plastic previously too thin for tapped threads. Klik Rivet-Nuts provide a neat appearance and once in place, the internal threads are ready for a screw or bolt. Grip Range: .020 to .080. Hole size: .332 to .338. Drill Size: Q.