A machine screw hex nut has six sides and a hollow center with internal threading allowing it to fit over an externally threaded shaft, much like a finished hex nut. Machine screw nuts are designed to pair with machine screws, they are offered in the same dimensions and thread pitch options. It’s essential to match the threaded fastener to the nut so that threads mate correctly to avoid stripping and failure. As noted, the smaller size options of machine screw nuts are best suited for applications that require precise fasteners such as electronic equipment or furniture assembly.
Consider all environmental elements to determine the best material or finish for a successful project. Machine screw nuts are available in plain steel, generally not suitable for contact with moisture. Also available in zinc for moderate corrosion resistance or stainless for superior corrosion resistance. Some electrical applications might require conductivity needs available with brass machine screw nuts. The machine screw nut material will often match that of the corresponding machine screw.
