torque requirements with blue loctite

[rdunbar123]

Does putting loctite on a bolt increase the torque needed to seat the bolt all the way in?

[JetDriver]

I wouldn't imagine so.  What loctite does is keep the nut from vibrating loose.  It's a high quality lock washer.  You still want it torqued to book values.  It shouldn't need any extra torque because the loctite doesn't do anything until it dries.  While you're wrenching the nut tight, the loctite won't be dry yet.  (Now getting the nut off next year will be a different story....)

[honda*mann]

Hi,

Actually when you use something that "lubricates" the threads, it does make it go in easier. I think this is what he is referring to. At work we use a lot of anti-seize on bolts and that makes them go in easier.


Honda*mann

[Challenger]

It shouldn't effect torqe on most of the bolts we encounter around the garage, It does make a big difference if you are torquing to yield like the torqe turn on new diesels and such, In these cases the tech manual will give you an oiled spec and a dry spec. Any way back to your question, you anly need a drop of loctite, if you put too much on with a blind hole you can actualy hydralock the bolt and crack housings  

[Mulepick]

I believe blue is heavy duty vs. red which is medium.  Be prepared to heat the part when you want it off next if you use blue.

[jrhorton]

I believe blue is heavy duty vs. red which is medium.  Be prepared to heat the part when you want it off next if you use blue.

you got that backwards.  Avoid using red unless you can apply heat when you want to disassemble in the future.

[Mulepick]

You're right, my bad.