Spring nuts are one-piece, self-locking nuts that secure screws and prevent them from loosening due to vibration. Hence nuts are used to secure screws in framing channels, cable management conduits, and ducting systems. Spring nut packages include end caps, washers, fittings, angle bolts, splice channels, and other accessories for different applications. Also known as insert nuts, these convert slotted holes to threaded round holes and keep them centered in the channel.