Wheel Studs/Spacers/Lug Nuts OH MY!

[upSLIDEdown]

Yeah yeah, I've already read through all the threads here and on FA. First and foremost, I'm running a set of custom wheelcentric/hubcentric 6mm spacers up front. I'm trying to find out how many full turns you need on a lug nut to be safe. I've heard anywhere from 5-10. That's a huge range. Anyone have any insight?

Also, I think I'd be more comfortable with extended studs, but I don't wanna pay the $$$ for Nismo or Peak Performance. I have to buy new lug nuts anyway (mine are too big for the new wheels) so I was thinking of going with the $40 ARP extended studs, which would change the thread pitch to 12x1.5. If I do that, I need to put them all the way around, even though I won't be running spacers in the rear, beacuse I don't want to have to buy 2 sets of lug nuts (one 12x1.25 and one 12x1.5). If I put them on the back with no spacer, I assume I'll need open ended lug nuts. Will the tall style closed ended ones cover them (SplineDrive, Gorilla, Muteki, etc)??? If not, do you guys think it would look stupid with ext studs out back with open ended lug nuts (I'm guessing the studs would stick out further than the wheel...). What are everyone's thoughts on my predicament??

Thanks guys!
Bryan

[96twofourty]

I have the nismo ones in the rear of my car (the smaller ones) and small spacers and the studs dont stick through the lugs. If you get the right sized studs then you shouldnt have problems with the stud sticking through

[SirWarrior]

5turnsx1.25mm=6.25 of engagement
5turnsx1.5mm=7.5mm of engagement

So you will spin the 1.25 lug nuts more times to get the same engagement as the 1.5 lug nuts....
I wouldn't go with less than 12mm engagement, but thats just me.

HTH

[upSLIDEdown]

But the length of engagement isn't as important as number of turns (or threads) i.e. a fine thread bolt is always stronger than a coarse thread bolt of the same dimension, because there are more threads in the same amount of space.

Bryan

[SirWarrior]

I guess what I was trying to say is that I would go with about 9+ turns to be safe (12mm as I am using stock studs). And that its not going to be the same for 1.25 and 1.5 as far as lenght.
Hope that makes sense a little better now.

[upSLIDEdown]

right right

That's why I asked how many turns, not length :)

[upSLIDEdown]

Ok, I think I'll just bite the bullet and get NISMO studs for the front, and leave the stock studs in the rear. That way I'll have the same thread pitch. Later if I decide to run spacers in the rear, I'll just buy the studs for the rear...

Bryan

[o1Marc]

The correct answer, and you may not like it, the nut show go as far onto the stud as its thickness. So you should grab at least 12mm in length on a 12mm stud regardless of the pitch. A 12mmx1.25 will have more threads covered and be stronger than the same on a 12mmx1.5 but both exceed the requirements for safe torque. I measured 5 complete turns on a 12mmx1.5, I dont have a 12mmx1.25 to check with but you should measure the twelve mm length and then thread a nut on to that mark and count the turns to know. I see race wheels with a 4" stud and the nut on with 1-1/2' of stud exposed , this is no stronger than if no threads were exposed.
I just realized this thread is 6 years old, but it will help others with the same question.

[o1Marc]

The length would be the same. The number of turns would change.I guess what I was trying to say is that I would go with about 9+ turns to be safe (12mm as I am using stock studs). And that its not going to be the same for 1.25 and 1.5 as far as lenght.
Hope that makes sense a little better now.

[FaLKoN240]

Thanks for reviving this 6 year old thread.

[SaNTi]

Lol... 6 years later "The correct answer is..."

[o1Marc]

So once the incorrect answers are posted noone should ever correct them is that it. I see this is just another asshole car forum that would rather engage in pissing matches than actually learn something. Some one new may come here and read the incorrect answer and just roll with it right. Thanks you 2 for adding some positive response to it.Lol... 6 years later "The correct answer is..."