This Burnham Commercial fastener is a hexagonal nut, often abbreviated as hex nut. It is a type of hardware that has six sides and is typically used in conjunction with a mating bolt to fasten multiple parts together. The interior of the hex nut is threaded to allow for secure attachment to the bolt. This particular model is made from durable materials that resist corrosion and wear, ensuring longevity and reliable performance. The hexagonal shape allows for easy tightening or loosening with standard tools such as wrenches or sockets.