Back Home / Fasteners / Threaded Inserts / FLATHEAD THREADED NUT UNC ALUM 1/4″-20 GRIP RANGE .020 – .080 FLATHEAD THREADED NUT UNC ALUM 1/4″-20 GRIP RANGE .020 – .080 SKU: FTNA1420 Categories: Fasteners, Threaded Inserts Aluminum Flat Head rivet nuts. Are designed to provide a very efficient and cost-effective method of placing permanent threads in thin materials. Perfect for use in metals, fiberglass, and rigid plastics. Provide a neat appearance. Provide permanent, captive threads after installation. Flat Head design provides the most bearing surface for higher torque applications. Hole size: .332 min .338 max Case Quantity: 25 Log In For Pricing