Clipnuts, also called speed nuts, tinnerman nuts, piper nuts, or sheet metal nuts, are designed to clip onto thin sheet metal and act as both the lock washer and nut for the bolt that is being installed. The clip allows the nut to stay in place without the bolt being installed. Monroe Aerospace is a stocking distributor of Aerospace and Mil-Spec hardware. We have an extensive inventory of clipnuts. Every part that we sell is in Factory new (FN) condition and we provide our company’s certificate of conformance for all parts on every order. See below for our products.