Square nuts are fasteners characterized by their four equal sides, providing a unique shape that distinguishes them from traditional hexagonal nuts. These nuts are typically used in conjunction with square bolts, allowing for a secure and stable connection in various applications. The design of square nuts facilitates a larger surface area for contact with the material being fastened, which can enhance grip and reduce the likelihood of loosening under stress. They are commonly employed in construction, machinery, and furniture assembly, where their shape can be advantageous in preventing rotation during installation. Additionally, square nuts can be manufactured from a variety of materials, including steel, stainless steel, and plastic, making them versatile for different environments and load requirements.