Small Things You Should Know About Locknuts

What helps a piece of equipment to be more effective and dependable? Locknuts!


These are the components that provide sustainability even in the harshest environments. They ensure lasting performance, reliability, and better results for assembling any small to huge machinery component.

Collar Locknuts

Previously, when designers wanted an excellent connection for assembly that could provide great stability, they invented double-nutted systems. The nutting system at that time was an effective method to prevent an assembly from loosening. However, the method was significantly cost-consuming that was beyond affordability for an individual.

Later, the manufacturers came with the concept of developing nuts to replace double nutting, achieving greater assembly and increasing the life of the joint. These styles are today known as locknuts. Any locknut is typically a hex nut which features in increasing resistance to loosening. They are also popular in the market as prevailing torque locknuts as they need a wrench to run the nut.


If we talk about the categories, locknuts fall into two different categories: all-metal locknuts and nylon insert locknuts. All mental are used for high-temperature applications where nylon insert locknuts cannot be used. Here are a few other things that you would prefer to know about the locknuts-


  • Some locknuts require metal to create friction and nuts that incorporate a polymer in the design to secure bolted joints through the friction to the thread of bolts.
  • Locking nuts work similarly to normal nuts when it comes to the installation procedure while nylon insert features in internal nylon patch or washer.
  • Top Lock, Conical Lock, Tri-Lock, Stover locknut, Griptite Locknut are other names of all-metal locknuts. Nylock Nut, Non-Metallic Insert Nut, and Stop Nut are other names of nylon insert lock.
  • Nylon insert locknut has non-metal components which means they are very temperature and chemical sensitive. It includes a friction-based bolt locking method.
  • Functions and features of all-metal nuts are not limited to any kind of chemical or temperature restriction. They can suffer from thread galling. these lock nuts can stay on the bolt even if they have loosened.
  • Collar locknuts have proven to be the most consistent and residual torque. These are typically large in dimension and used in heavy equipment. Features of collar type locknuts include assembly with minimal thread damage, reduced assembly speed with an increase in diameter, and assurance for locking element position.
  • Nylon insert nuts are reusable several times. It is because the mating thread deforms the nylon.
  • All-metal locknuts cannot be used more than once because the mating threads in the nuts wear away the locking feature like nylon insert nuts.

Examining the specifications is a good way to choose the most appropriate nut for your needs. It is essential that you consider features, specifications, and uses to make any type of locknut fit for your specific requirement. If you need any help in selecting the best locknut for your product, feel free to contact us. Our representative will provide you valuable information.