What is a square nut

Square nuts are a distinctive type of nut that feature a rare quadrilateral shape. In contrast to standard hex nuts, these nuts offer a greater contact surface with the fastened part, which results in enhanced resistance to both loosening and tightening. Additionally, square nuts are less prone to becoming rounded when subjected to loosening or tightening forces. These nuts are commonly utilized alongside flat washers to prevent potential damage caused by sharp edges. Furthermore, square nuts are frequently employed in conjunction with bolts that possess square heads.