You have probably heard the terms "lock nut" and "jam nut" mentioned while discussing how to fasten a fastener in place. But what do they really mean? In order to guarantee that your fastening procedure is done correctly, it can be helpful to understand the distinctions between these two types of nuts. Let's examine the functions of lock nuts and jam nuts as well as when and why you ought to employ each.
What is Lock Nut?
The purpose of a lock nut, often referred to as a locking nut or nylon insert lock nut, is to prevent screws from coming undone as a result of vibration or other forces. This is accomplished by using a nylon insert that, when tightened into position, swells and causes friction between the threads of the bolt and the nut holding it in place. Because of this, lock nuts are perfect for applications where vibration or movement may eventually cause a bolt to come loose.
What is Jam Nut?
A jam nut, on the other hand, serves as a locking device for another nut to prevent movement or gradual loosening. It functions like a typical nut would, but because it is smaller, it can fit tightly against a larger nut while still having enough threading room for bolts. Jam nuts are designed to increase security by making it impossible to remove a connected nut without first removing two independent sets of threads—the jam nut itself and then whatever is attached to it.
Conclusion
Knowing which kind of fastener would be appropriate for your project will assist assure success, whether you're searching for more security against vibration or require something exceptionally safe. While jam nuts offer further defence against unintentional loosening over time for already-installed nuts, locknuts provide the best anti-vibration protection. Knowing which one to utilise when now can help you later on save time and money!
