# Nyloc nut on eyebolt: How tight?

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#### ActingLikeAKid

##### Well-Known Member
Putting in an eyebolt on an HPR rocket. I'm using a nyloc nut so it won't back off. It occurred to me that if I leave it a tiny bit loose, that will let the eyebolt spin freely during recovery, which should reduce twisting in the gear. Any reason not to do this? Or should I snug it down securely?

#### JJSR

##### Well-Known Member
It would depend on where your putting it.
But I would think where ever you put it ,centering ring, av bay, it would eventually start to brake through it from all the load jerks it will get

#### Kruegon

##### Well-Known Member
I use the same on my builds. I usually tighten it down. Any slack could cause the bolt to snatch at the connection point. Almost like jerking the head of a hammer against something. Snug with reasonably wide washers will reduce the strain that a loose bolt impact would cause.

#### ActingLikeAKid

##### Well-Known Member
Cool, thanks all.

#### Banzai88

##### Lvl 1,Wallet....Destroyed
TRF Supporter
Also, you don't want a working joint of hard parts down deep in the airframe. That purpose is best served with a swivel.

#### Nathan

##### ☢
TRF Supporter
Also, you don't want a working joint of hard parts down deep in the airframe. That purpose is best served with a swivel.
Exactly what I was going to say but you beat me to it.

#### ActingLikeAKid

##### Well-Known Member
Well, that answers that pretty unequivocally

Next question: The eyebolt is load-rated (500, I think?) and the threaded part is about 2" long. I need less than half of that. I'm thinking
-If I cut it, I'll need to clean up the threads a little, but it would save me a bit of weight. Don't think it would hurt anything
-If I leave it as is, I'm sending an extra few grams up. I'm leaning toward leaving it alone. Thoughts?

#### rharshberger

##### Well-Known Member
Trim the length, if its longer than the nut you are not gaining any strength, and as you pointed out the extra length is just extra weight.

#### Nathan

##### ☢
TRF Supporter
I do that with bolts and threaded rods all the time. Bolt cutter will mash the threads a little so just remove about another 1 mm with a file until you get to good threads.

#### ActingLikeAKid

Awesome. Thanks, y'all. Now, if I could just find my !#@!~$hacksaw.... #### Dave A ##### Lifetime Supporter TRF Lifetime Supporter Use large fender washer under the nyloc nut anyway, if loose it can't pull out. Otherwise use a swivel on your recovery equipment. #### Jarhead ##### Well-Known Member Awesome. Thanks, y'all. Now, if I could just find my !#@!~$ hacksaw....
Before I cut I always run a standard nut on past the cut line. After cleaning the threads with a file removing the nut chases the threads for me.
Little something my dad taught me....

#### ActingLikeAKid

##### Well-Known Member
Before I cut I always run a standard nut on past the cut line. After cleaning the threads with a file removing the nut chases the threads for me.
Little something my dad taught me....
Thanks for the reminder. One of those "I used to know that...." things

#### dmgrime

##### Well-Known Member
So simple I love it! Ended up using a die to rethread my all rod. Doing this from now on! Thanks!

Thanks, y'all.