BLIND NUTS BLIND RIVET NUTS (steel & stainless steel): are easily installed in blind or open applications. are a dual purpose fastener.not only do they clamp materials together but also contain a female thread for attaching removable parts. are particularly suitable for use in materials which are too thin to accomodate a tapped thread. can be used on a finished surface. have distinct advantage over weld-nuts and press-nuts. can be installed with your existing blind rivet nut tools. are available in large head and csk head.