Self-clinching nuts provide an excellent solution for design engineers where a strong reusable thread is required in their metal assembly. Kingstar metal factory self-clinching nuts provides a low-cost installation solution for providing strong threads in thin sheet metal. The clinch nuts are superior to tapping a thread in an extruded hole in thin sheet metal.The tapped threads made in the extruded hole do not have anywhere near the strength or durability of the threads in our self-clinching nuts.