Advice For Those Using Metric Lock Nuts With Bolts That Experience Vibration
If you have to keep bolts secure under vibrating conditions, then you'll want to consider using metric lock nuts to support them. These nuts lock in place and thus won't come loose even when there are vibrations. Just make sure you use these metric fasteners in the following ways.
Start With the Right Size
Like other metric fastener types, lock nuts have a lot of different sizes. You want to carefully analyze the bolts you're supporting with this fastener type so that you have an easy time with installation, as well as ensure these lock nuts stay in place once they've been tightened enough.
You can simply look at the diameter size of bolts you plan on working with and then verify your lock nuts are large enough to support this particular dimension. That should free you of obstacles or issues when working with this metric fastener.
Know When You've Achieved the Appropriate Tightness
One of the most important things to focus on when working with locking nuts is the tightness that you achieve. How many times do you need to turn a wrench to get these locking nuts to stay in place on a corresponding bolt? That's something you want to figure out before you start working with this metric fastener ideally.
Then there won't be any chance you tighten the lock nut too much to where it eventually damages. You may be able to look at tightening guides for the particular application you're using lock nuts with. Or you can consult with professionals that have a lot of familiarity with using these fasteners in their own projects.
Assess the Direction of Bolt Threads
Another important factor you need to assess before choosing and ultimately using lock nuts is the direction of threads on bolts. It will affect the type of lock nuts you need to get and the direction that you tighten them. A thorough visual inspection can reveal information on thread direction.
You just need to use a magnifying instrument that can give you clear details of this spec. Then it's just a matter of making the appropriate lock nut selection and working with it correctly going forward.
If you're looking to use metric lock nuts because they'll stay on bolts around vibrating environments, then verify you're choosing the right option and go through optimal usage protocols. You'll then achieve optimal fastening results that you can trust will last.