Table of Contents
What is a locking nut for a bolt?
Also known as a stiff nut, a lock nut is a special type of nut that doesn’t loosen when exposed to vibrations. In the past, companies would simply use two nuts in applications where vibrations are problematic. After inserting one nut onto the end of the bolt, they would place a second nut on the bolt.
What is the difference between hex nuts and locking nuts?
A hexagon nut is a standard fastener and one of the most basic fastening solutions. It’s not technically a locking nut, but by using two nuts together (typically one standard hexagon nut and a thin hexagon nut) they act as a type of locknut, but have limited resistance to loosening under vibration.
What are the types of locking nut?
There are various kinds of specialised lock nuts, including:
- Castellated nut.
- Distorted thread locknut. Centerlock nut.
- Interfering thread nut. Tapered thread nut.
- Jam nut.
- Jet nut (K-nut)
- Keps nut (K-nut or washer nut) with a free-spinning washer.
- Plate nut.
- Polymer insert nut (Nyloc nut)
What are 4 methods for locking nuts bolts and screws?
Locking Fastener Methods to Secure Your Applications: Additional
- Serrated Flange Nuts/Bolts. Serrated flange nuts and bolts use serrations on the bearing surface to create higher friction and prevent loosening, primarily on sheet metal joints.
- Double Nuts.
- Tab Washers.
- Castle Nuts.
- Safety Wire.
When should you use a lock nut?
Bearing lock nuts, sometimes called shaft locknuts or bearing retaining nuts, are utilized to secure bearings onto a shaft and are designed to prevent the loosening of components due to vibration and rotation.
Can nylon lock nuts be removed?
The nylon in traditional hex lock nuts can wear, and become less effective after repeated removal and installation. For optimum holding power, replace the nut if it needs to be removed during disassembly of a component.
What is the purpose of a lock nut?
A lock nut is an internally threaded fastener that possesses locking capabilities either by itself or in concert with another component. By design, lock nuts are engineered to resist loosening when subjected to vibration or torque.
How tight should a lock nut be?
Getting them off a journey when you have a flat could leave you stranded, so they should be nipped up a bit more than finger tight. If the locking nut comes loose, the other wheel nuts should be fully tightened and Torqued.