The 1421NP25 is a package containing 25 units of the 10-32 zinc-plated round hole clip nut. These nuts provide the holding strength equivalent to a standard 10-32 nut and are finished with a zinc plating for corrosion resistance. They are specifically designed for mounting on punched panel rails with round holes, making them ideal for securing components in electronic enclosures, racks, and cabinets.