A spring nut allows you to quickly and easily install a bolt or screw in a blind-side application, including panels and studs that can only be accessed from one side. A spring nut provides the right amount of tension without damaging the material and isn’t loosened by vibrations. You don't need a spring washer or lock washer when you use a spring nut, and you don't need to shop for them anywhere else when you know about Grainger's selection. Check it out today!