What Are Castle Nuts?

Castle nuts, also known as castellated nuts or slotted nuts, are a type of nut used in mechanical and fastening applications. They are named “castle nuts” because of their distinctive appearance, which resembles the turrets of a medieval castle.

Castle nuts have a cylindrical shape with one end threaded internally to screw onto a bolt or threaded rod. The other end is slotted with multiple slots or grooves cut into it radially. These slots create a series of “teeth” or “turrets” around the nut’s circumference. The purpose of these slots is to accommodate a cotter pin or a split pin, which is inserted through the slots and the bolt or stud after the castle nut is tightened. This arrangement ensures that the nut remains securely in place and cannot easily loosen, even in vibrating or high-stress environments.

Castle nuts are commonly used in applications where it is essential to prevent the nut from loosening due to vibration or other forces, such as in automotive suspension systems, wheel hubs, and various machinery. The cotter pin or split pin provides a reliable and tamper-resistant method of securing the nut in place. Castle nuts are available in various sizes and materials to suit different applications.

Xinchi Fastener Company is a trustworthy fastener company, especially in furniture nuts. And we are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier,  Xinchi Fastener Company can offer a wide range of high-quality fasteners, including T nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. And then our experienced and expert service team will reply to you as soon as possible.