Muteki Lug nuts on stock 20s

W

whin9000

Member
Location
Crystal, MN
Car
2010 FX35 AWD
Does anyone have Muteki SR48 (or any narrow) lugs nuts on their stock 20s? Just got these put on, and I feel like the diameter of the lug nuts is not wide enough and the wheels could slip right off. Any thoughts?
 
If I am not mistaken Muteki lugs are conical seat(or atleast all the ones I have seen are, I don't know if they make other seat styles). The stock 20's require a shank style seat.

So yes you are absolutely correct, the fitment would be off. I would not suggest driving the car like that, there is a chance the lugs could fail. I remember this happened to a honda guy and he had a catastrophic failure. I'll see if I can dig up the thread.

lug_nut_types.jpg

Muteki lugs are the left style, OEM wheels require the middle style.
 

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Hmmm. My OEM rims and lug nuts are tapered acorns. I use Muteki acorns on my 22's and 24's. I think the shank style has only been stock on wheels for the past few years.
 
Wow that's weird how they are different between the 18's and 20's. My stock 21's are not acorn style either. Nice find Meme
 
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Strange that stock 18's and 20's of the same gen are different.
Here are my stock wheels. In the center is the profile of the OEM lug nut ('03 FX45, 20" wheels stock).


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---------- Post added at 12:53 AM ---------- Previous post was at 12:42 AM ----------

I think the OP is noticing the visual difference of the diameter. Aftermarket tuner lugs are smaller allowing for smaller holes and use a smaller diameter socket. (I've always been curious as to why this is.)
As long as the studs are the same size and the correct threads are used, the lug nut seats should engage the same amount, and thus be perfectly safe.
All of this should definitely be better verified by what the OP really means. Don't ride on bad nuts.


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All of the 2nd Gen 18, 20 or 21 wheels use the shank style nuts with the washers like on the right.
IMG_4031.jpg

As to 1st Gen wheels, I know the earlier ones use tapered acorn style lug nuts, but they may have changed in later 1st Gens . It is very obvious by the size of the lug holes in the wheels.
I know on the G35/37 they changed to shank style lug nuts in 2007 for their wheels.

The important thing is to use the proper seating lug nut with the wheel you are using. It is extremely unsafe to do otherwise.
 

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My '07 18"s were the older acorn style so aftermarket lugs will work fine with that style. I always thought they switched to the shank style on Gen2's, but I guess maybe they did it in '08.
 
Thank you for the help guys! Sorry for the confusion, I upgrade my FX to a 2010, just didn't update my information. I think my stock 20"s are shank style...
 
Okay glad OP found the information he needed.

I have to apologize, I looked at my 18's on my way out the door this morning, and they are indeed acorn style. I must have been off my rocker last night.

So 1st all styles Acorn seat.
2nd all styles Shank seat.

Previous information about running different style lug nuts in the wrong type seats still stands; Your gonna have a bad time.
 
Muteki Lug Nuts will work on wheels with small lug holes and with extended wheel studs. I got a set of neon-chrome. They are very well made and have worked great on my GTR Wheels.

IMAG0010_zpswinni1ss.jpg
 

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