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