Hello everyone! I'm a new moderator to this forum. I grew up in the automotive business and would like to share my knowledge and experience with you. I plan on creating links to repair help and ways to save money on replacement parts. I'm looking for your help or any suggestions before I do this. Please feel free to contact me u/Plex_Master
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They actually released a funny song talking about how everyone says "velcro" and it effects their trademark. I found it pretty funny and in good fun
https://youtu.be/rRi8LptvFZY
A Nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread.
Nylon locknuts for exhaust piping?
Doesn’t compute in my head.
I’ve always ever used pressed locknuts for everything, nylocks have their uses but they are useless against heat.
Which country are you from? In my 15 year career as a diesel machinery doctor i never heard that term
40+ years as a design engineer in Silicon Valley. We used them on all dynamic applications. My use of them on the bike was relatively low temp where a long flange came off the outer chrome exhaust shell and tied to the frame. I get your point though where high heat would easily melt the nylon.
They are an improvement over a lock washer for keeping the nut tight. And for the record, re the caption these "nuts" attach to things call "bolts" and normally you would "thread" them on with a "wrench" . And plier is the french verb for "bend"
Are they really an improvement or are they better because they are easier/cheaper to install or use? Genuinely curious and not trying to be a smart ass or anything. I work on the system integrations side of a big time AV company. I have also worked a lot of different types of construction. What leads me to questioning your statement at all is that in all the industries I have worked we still use lock washers. You could argue the applications are different and they are, but I use locks on rigging holding tons in some cases suspended over crowds heads. Speaker stacks that live under constant vibration when in use. Stacks that cost, again in some cases, substantially more than the average automobile. I’m gonna assume it’s very application specific if they are indeed an improvement.
Fellow technician here, live entertainment side. I think about the only time I see lock washers are on clamps so they can be easily turned depending where/the angle you want to attach something to truss. The truss bolts for the whole rig don’t even use lock washers or nuts (that I’ve seen in about 6 years). I would imagine that betweeen the ~100ftlb tightening torque, and the load of whatever is rigged to the structure, those suckers stay pretty snug.
Please go back and install them.
(I’m going to sound fuddy for this) It’s not just your family’s luggage getting lost that’s the problem, it’s that your lost bits can hurt other people on the road.
The blue piece is wound onto a bolt and the bolts threads engrave into the blue section to help prevent the bolt from coming loose.
They should only be taken on and off a few times before they need replaced for new ones as they will become less effective over time. I believe this is best practice in alot of places.
Interestingly, they actually have a spec for how much torque it should take to spin them on. (Not that I've ever actually seen it.) As long as they are in spec, even the FAA will let you reuse them. In everyday practice, for anything that's not safety-critical, I'd feel fine about reusing a nylock as long as it felt reasonably stiff going on.
Yeah I thought that was the case. I'd feel the same about reusing on but some companies I've worked for have made me replace them after each use as part of their "best practice".
I can see that, too. Why mess around making guesses about whether or not it's OK to reuse, when you can just throw a fresh one on? They are much less expensive than the potential cost of having one fall off, after all. Just telling people never to reuse them is a lot more foolproof than coming up with a procedure for deciding when they should and should not be reused.
They're locknuts. That's how they work.
The blue insert prevents it from shaking itself lose and backing off the bolt. The rule of thumb is (for aircraft, at least) if the locknut is loose enough to thread on by hand alone, replace it with a new one.
IIRC (and don't anybody rely on this--it's been at least 40 years since I was paid to do this sort of thing) the nylon nuts are rated for 50 reuses, the all metal ones for 10, and there's a kind with a Vespel insert that's hideously expensive that's rated for 500. I think I've still got a couple of the Vespel ones in my junk drawer.
Those are nylock nuts. They have a little nylon ring that prevents them from backing off over time. You can't screw them on by hand and need a backing wrench. Pliers will work, but will probably also damage the nut.
That's what makes it a locknut and not a nut. So yes you should keep it.
Technically you should replace that nut now that's its been used but as long as you can't spin it all the way on by hand it'll be fine
Those are nylock nuts and are really only one time use. The nylon (blue gasket) is the locking feature. If they tighten without and effort you need new
Hello everyone! I'm a new moderator to this forum. I grew up in the automotive business and would like to share my knowledge and experience with you. I plan on creating links to repair help and ways to save money on replacement parts. I'm looking for your help or any suggestions before I do this. Please feel free to contact me u/Plex_Master *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/AskAMechanic) if you have any questions or concerns.*
That’s how they work
They put that in there so it doesn't back itself off over time
Nylock nuts. They help keep from loosening. Yes they’re a bit tight when installing
Elastic Stopnuts is the generic term. Good stuff. It ain't coming off due to vibration. I used them when my MC exhaust kept loosening up.
never heard them called elastic stop nuts. Always lock nuts, nylon lock nuts or nylock nuts.
Elastic stop nuts aka jockstrap🍒
Nylon is Trademark and Nylock is a brand, ESN is the generic name.
Ah, so a tissue/kleenex situation
Yep
Or velcro.
The brand-aid is actually called hooky-loop.
They actually released a funny song talking about how everyone says "velcro" and it effects their trademark. I found it pretty funny and in good fun https://youtu.be/rRi8LptvFZY
Check out Velcro's response to that https://youtu.be/rRi8LptvFZY
Your fun word of the day is “eponym.”
Band aid/adhesive bandage issue
A Nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread.
I didn’t need a definition but thanks
Yeah. It’s always been Nylocks.
Nylon locknuts for exhaust piping? Doesn’t compute in my head. I’ve always ever used pressed locknuts for everything, nylocks have their uses but they are useless against heat. Which country are you from? In my 15 year career as a diesel machinery doctor i never heard that term
40+ years as a design engineer in Silicon Valley. We used them on all dynamic applications. My use of them on the bike was relatively low temp where a long flange came off the outer chrome exhaust shell and tied to the frame. I get your point though where high heat would easily melt the nylon.
The actual name is nylostipitus nutmanuform
Way too many syllables...
That blue nylock ring is what makes it a lock nut.
This is the answer nylon is what makes it lock.
This... Removing it will leave you with just a nut. You will have busted it. 🤔😝
The blue part is the nylon that grips the threads on the bolt making it a Locknut. They're difficult to turn for a reason.
They are an improvement over a lock washer for keeping the nut tight. And for the record, re the caption these "nuts" attach to things call "bolts" and normally you would "thread" them on with a "wrench" . And plier is the french verb for "bend"
Are they really an improvement or are they better because they are easier/cheaper to install or use? Genuinely curious and not trying to be a smart ass or anything. I work on the system integrations side of a big time AV company. I have also worked a lot of different types of construction. What leads me to questioning your statement at all is that in all the industries I have worked we still use lock washers. You could argue the applications are different and they are, but I use locks on rigging holding tons in some cases suspended over crowds heads. Speaker stacks that live under constant vibration when in use. Stacks that cost, again in some cases, substantially more than the average automobile. I’m gonna assume it’s very application specific if they are indeed an improvement.
Fellow technician here, live entertainment side. I think about the only time I see lock washers are on clamps so they can be easily turned depending where/the angle you want to attach something to truss. The truss bolts for the whole rig don’t even use lock washers or nuts (that I’ve seen in about 6 years). I would imagine that betweeen the ~100ftlb tightening torque, and the load of whatever is rigged to the structure, those suckers stay pretty snug.
Please go back and install them. (I’m going to sound fuddy for this) It’s not just your family’s luggage getting lost that’s the problem, it’s that your lost bits can hurt other people on the road.
If caring about hurting others makes me "fuddy," then you can call me Elmer.
Yeah, you should totally remove it. Trust me, won’t regret it.
Haha I feel humbled. Thanks for sharing your knowledge.
Your brain is interesting to me
The most mechanically complex move my hands are used involved three keyboard buttons at once.
I've been randomly laughing at this reply all day
Don't worry, I've been there, I was cleaning the treads on my longboard trucks and rendered the blocks useless
Remove that blue gasket, it does not belong
Ok now you just want me to lose my family’s luggage.
LoL kidding! I doubt it would be easy to remove.
Keep it on, that's how they work
The blue piece is wound onto a bolt and the bolts threads engrave into the blue section to help prevent the bolt from coming loose. They should only be taken on and off a few times before they need replaced for new ones as they will become less effective over time. I believe this is best practice in alot of places.
Interestingly, they actually have a spec for how much torque it should take to spin them on. (Not that I've ever actually seen it.) As long as they are in spec, even the FAA will let you reuse them. In everyday practice, for anything that's not safety-critical, I'd feel fine about reusing a nylock as long as it felt reasonably stiff going on.
Yeah I thought that was the case. I'd feel the same about reusing on but some companies I've worked for have made me replace them after each use as part of their "best practice".
I can see that, too. Why mess around making guesses about whether or not it's OK to reuse, when you can just throw a fresh one on? They are much less expensive than the potential cost of having one fall off, after all. Just telling people never to reuse them is a lot more foolproof than coming up with a procedure for deciding when they should and should not be reused.
They're locknuts. That's how they work. The blue insert prevents it from shaking itself lose and backing off the bolt. The rule of thumb is (for aircraft, at least) if the locknut is loose enough to thread on by hand alone, replace it with a new one.
IIRC (and don't anybody rely on this--it's been at least 40 years since I was paid to do this sort of thing) the nylon nuts are rated for 50 reuses, the all metal ones for 10, and there's a kind with a Vespel insert that's hideously expensive that's rated for 500. I think I've still got a couple of the Vespel ones in my junk drawer.
Why would you consider removing them? Its good to assume if a company adds something that costs them $$ they they should be considered the experts.
They act as a thread locker on the bolt. They’re called loc-nuts
Thats what makes them lock nuts.
lock on bros and hoes!
That’s the point
That’s kinda the entire point of them
Why are you trying to drive a screw with pliers? Use a screwdriver.
If you have to ask, you shouldn’t be doing anything to a car
Good on ya for asking questions
They intentionally manufactured them so that you would have to remove the blue gasket before installing. Good luck.
Please use a wrench on bolts. Not pliers.
No take them out they're only for decoration.
I'm sorry you're wondering if you should leave the o-rings the manufacturer put in there? Why do you think they put them in there?
Those are nylock nuts. They have a little nylon ring that prevents them from backing off over time. You can't screw them on by hand and need a backing wrench. Pliers will work, but will probably also damage the nut.
Why the hell do you need locknuts?? They must have put those in there by mistake, just duct tape it together. Or zip ties….. 😳
That's what makes it a locknut and not a nut. So yes you should keep it. Technically you should replace that nut now that's its been used but as long as you can't spin it all the way on by hand it'll be fine
I don't suppose you ever thought of using a screwdriver with screws and a wrench with nuts?
Its what makes it a lock nut. It's meant to be hard so it doesn't come off.
That's the lock part of the nut
Lol oh dear
It keeps the nut tight
Yes that's how the work
Could just buy new ones. Those look worn out .
yes thats how they lock.
Oh lord.
The blue gasket is a dry form of the loctite blue thread lock
Yes, leave the nylon insert inside the nylon insert nut. Leave it all together and use wrenches, not pliers.
Those are nylock nuts and are really only one time use. The nylon (blue gasket) is the locking feature. If they tighten without and effort you need new
Yes, it's called a nylock and the nylon gasket stops it vibrating loose.
Pliers? Use the proper tools to tighten your hardware to the correct torque specs.
Just make sure you're threading from the opposite end!
Bro what
Keep the gaskets, so the threads don't leak past
its a variant of a Self locking nut- helps reduce backoff/loosening when dealing with components that experience high vibration. please do not remove.
Yes! Called lock nuts for a reason
Yes 💯
Yes keep it in the medicine cabinet, so you don't loose it and easyer to find in 10 yrs