Hex Jam Nut

Hex Jam Nut is a fastener used to prevent bolts or screws from loosening. Its design features enable it to provide high preload force after installation, thereby avoiding loosening and detachment. This type of nut typically has a serrated profile and is securely fastened with 24 locking teeth. In some cases, to avoid surface damage, it is recommended to use locking nuts with corrugated contours. The working principle of hexagonal locking nuts is to use the frictional force between the nut and bolt for self-locking, but under dynamic load conditions, the reliability of this self-locking may be reduced. In addition, all metal pre tightening torque type Hex Jam Nut (such as Flexloc) use six equidistant adjacent slots, which form a slightly smaller diameter circular neck at the top of the nut. When the thread of the bolt reaches the neck, the slot part will expand and produce a pre tightening torque locking effect. Hex Jam Nut are widely used in various industrial fields, such as machinery, cable joint fixation, etc. Hex Jam Nut can be classified into various types based on their material and purpose. For example, Hex Jam Nut made of stainless steel are suitable for applications that require high-strength connections, such as bridges and steel structures. In addition, there are nylon insert type locking nuts, which have a nylon ring embedded at the top of the nut to achieve locking function.