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Lug Bolt length question

tanger

E500E Guru
Member
Have scoured the board, thought I had seen the info one but couldn't find it anymore. So apologies if I just missed it.
EDIT: Right after I posted this the "related threads" module on the bottom helps with my question somewhat (http://www.500eboard.com/forums/sho...or-Brabus-wheels&p=10250&viewfull=1#post10250). But now I'm curious, do other people have this 8mm of threadless gap in their hub?

I have a question on lug bolt length, specifically in the rears. In my hub, it looks like there is about 8mm before the threads start. How much length do I have in the rears before I will hit the ebrake spring assy? On the fronts I know I can go longer, but curious about that max depth as well.

I'm thinking of going with the following bolt length, would love feedback:

FRONTS
AMG Mono IIs 18x8 ET31
10mm Spacer
A 50mm length bolt would leave 20mm of thread for the hub, and less the first 8mm of no thread there is about 12mm of thread holding the wheel on.

REARS
AMG Mono IIs 18x9 ET35
15mm Spacer
A 50mm length bolt would leave 15mm of thread for the hub, and less the first 8mm of no thread there is about 7mm of thread holding the wheel on. Should I goto 55mm?
 
Last edited:
Have scoured the board, thought I had seen the info one but couldn't find it anymore. So apologies if I just missed it.
EDIT: Right after I posted this the "related threads" module on the bottom helps with my question somewhat (http://www.500eboard.com/forums/sho...or-Brabus-wheels&p=10250&viewfull=1#post10250). But now I'm curious, do other people have this 8mm of threadless gap in their hub?

I have a question on lug bolt length, specifically in the rears. In my hub, it looks like there is about 8mm before the threads start. How much length do I have in the rears before I will hit the ebrake spring assy? On the fronts I know I can go longer, but curious about that max depth as well.

I'm thinking of going with the following bolt length, would love feedback:

FRONTS
AMG Mono IIs 18x8 ET31
10mm Spacer
A 50mm length bolt would leave 20mm of thread for the hub, and less the first 8mm of no thread there is about 12mm of thread holding the wheel on.

FRONTS
AMG Mono IIs 18x9 ET35
15mm Spacer
A 50mm length bolt would leave 15mm of thread for the hub, and less the first 8mm of no thread there is about 7mm of thread holding the wheel on. Should I goto 55mm?

How did you come up with the spacers sizes ?
 
Dunno if this helps, but here are photos of the stock lug bolt lengths. If you have at least one stock bolt and the original spare tire in the trunk, you can measure the stock protrusion, and then determine how long you need for your aftermarket spaced-out setup. You can go 3-5mm longer than stock without problems but DO NOT go any shorter! There should be at least 4-5 turns of the lug bolt when threading by hand:

http://www.w124performance.com/images/W124_wheels/lug_bolts/extended_head/124-400-07-70_500E/

78.jpg


79.jpg
 
I think effective offset of around 20mm is the look I'm going for (almost flush but not quite all the way out). Have read all the threads on offsets, if any one has specific recommendations for this wheel/tire combo would love to hear it...

How did you come up with the spacers sizes ?
 
Unfortunately, I have neither! The 4-5 turns datapoint is helpful- thanks.

Dunno if this helps, but here are photos of the stock lug bolt lengths. If you have at least one stock bolt and the original spare tire in the trunk, you can measure the stock protrusion, and then determine how long you need for your aftermarket spaced-out setup. You can go 3-5mm longer than stock without problems but DO NOT go any shorter! There should be at least 4-5 turns of the lug bolt when threading by hand:

http://www.w124performance.com/images/W124_wheels/lug_bolts/extended_head/124-400-07-70_500E/

78.jpg


79.jpg
 
Hi, what I have experienced is, EVO I EVO II 8hole AMGmono 17/18/19" does need the length of the OEM 40mm, thoose rims
have substatially thick holes i.e from the sphere to the thread part, when comparing w Brabus, say mono III Carlsson 1/6 1/5
they have somewhere up to 10mm less so the bolts for AMG will be protrouding too much. You have to meassure both head and
shank to get the right length. About the longest bolt, I guess they are unique to the 8x16" 8holer don't know about the 7.5x16?

As everyone say, make sure there's thread enough taking to account the disc hub th.ness,, Roger
 
I'm thinking of going with the following bolt length, would love feedback:

FRONTS
AMG Mono IIs 18x9 ET35
15mm Spacer
A 50mm length bolt would leave 15mm of thread for the hub, and less the first 8mm of no thread there is about 7mm of thread holding the wheel on. Should I goto 55mm?

Yes, i would use a 55mm in back (i assume this is a typo in your op). I run the same wheel with a 20mm spacer in back and i just checked one of my bolts. 60mm. I have at least 10mm of thread engaged (7 revolutions) and no interference.

drew
 
Thanks! And yes, stupid typo. corrected it. Just curious, what spacers do you run in the front? any rubbing anywhere?

Yes, i would use a 55mm in back (i assume this is a typo in your op). I run the same wheel with a 20mm spacer in back and i just checked one of my bolts. 60mm. I have at least 10mm of thread engaged (7 revolutions) and no interference.

drew
 
I was using 20mm spacers in front but i recently removed them. No rubbing or interference with that setup, i just wanted to have a staggered appearence. This allowed me to use the factory bolts in front which are flush with the wheel face as well. Keep in mind i run 9 inch in front, not 8 or 8.5.

drew
 
I think effective offset of around 20mm is the look I'm going for (almost flush but not quite all the way out). Have read all the threads on offsets, if any one has specific recommendations for this wheel/tire combo would love to hear it...

It really all depends on the look that you want as there is a lot of room to go in or out under these fenders.

One of the things I love most about these cars is the wide body fenders, so I like to play up on that. My car is lowered and the wheels are real close to flush, its amazing how many more complements I get on my car with this set up as it no longer looks like a normal W124.
.
 
I was using 20mm spacers in front but i recently removed them. No rubbing or interference with that setup, i just wanted to have a staggered appearence. This allowed me to use the factory bolts in front which are flush with the wheel face as well. Keep in mind i run 9 inch in front, not 8 or 8.5.

drew


Drew why did you remove the 20mm spacers in the front, where they the bolt on kind and did you have any issues ?
 
I've had no issues at all with the spacers. I just decided i liked the staggared look better. I use regular hub-centric H&R spacers. I'm not a fan of bolt on spacers due to the loss of steel wheel bolt to steel hub connection and the weight of the additional wheel nuts. I don't really see the need for them outside of mounting a wheel with a different bolt pattern. Most (if not all) 5x112 wheels are whithin 20mm of any desirable fitment.

drew
 
Can someone start an illustrated wiki post about lug nut styles, types, lengths, part numbers, sources ?!?!?


Sent from my iPad using Tapatalk HD
 
What is your effective offset? And remind me your wheel size?

My car is lowered and the wheels are real close to flush, its amazing how many more complements I get on my car with this set up as it no longer looks like a normal W124.
.
 
Can someone start an illustrated wiki post about lug nut styles, types, lengths, part numbers, sources ?!?!?


Sent from my iPad using Tapatalk HD
Great idea Gerry!
Wheel, bolt, spacer topics does repeat on a regular basis, but the information is spread around and hard to trace if it is hidden in non-related topics/threads/forums. This thread is also on the wrong place and should be under the Wheel & Tires subforum, however - this thread is at least in a more "wheel related" forum though. :-)

I don't mean to accuse people for doing things wrong here - most topics are in the associated forums, so please don't arrest me, but the fun starts when a thread is going off-topic compiling very useful information. Off-topics do in fact become highly valuable many times and could then be captured in a WIKI post.

:cheers1:
 
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Great idea Gerry!
Wheel, bolt, spacer topics does repeat on a regular basis, but the information is spread around and hard to trace if it is hidden in non-related topics/threads/forums. This thread is also on the wrong place and should be under the Wheel & Tires subforum, however - this thread is at least in a more "wheel related" forum though. :-)

I don't mean to accuse people for doing things wrong here - most topics are in the associated forums, so please don't arrest me, but the funs starts when a thread is going off-topic compiling very useful information. Off-topics do in fact become highly valuable many times and could then be captured in a WIKI post.

:cheers1:

Congratulations - you've just volunteered for the job. If you collect the info, I can turn it into a wiki thingie (unless you can/want to do that yourself).
 
I have three or four different sizes of lug bolts (for my Rials, AMG Monos, and steel wheels with drag radials) that I would be happy to provide photos and dimensions for. I can do this today -- just need to know where to send the photos to.

My biggest problem is that I don't know much about lug bolts (and wheels, and spacers, for that matter), and I know there are numerous experts here who do. I would think a wheel guru such as captruff would also be able to provide bountiful detail about lug bolts, so he would be a logical type to consult for said wiki entry.

Cheers,
Gerry
 
Just to close out this thread, I finally bought 55mm length bolts from Phil. Running 15mm spacers on all wheels, kind of regretting a bit I didn't buy 20mm for the front. It still looks great, but could look a little more aggressive.
 
Just to close out this thread, I finally bought 55mm length bolts from Phil. Running 15mm spacers on all wheels, kind of regretting a bit I didn't buy 20mm for the front. It still looks great, but could look a little more aggressive.


Post up some pix !
 
I have those same wheels and have been looking at buying spacers for the front. My car is also lowered on H&R springs front and rear.
Could you please point to the spacers you bought? maybe an ebay link?
Also, do you know the alignment settings you are using? Negative camber plays a big difference in positioning of the wheel adjacent to the fender lip.

It is worth noting, I am using adjustable camber links in the rear and that moves the outer wheel out significantly when I added positive camber to ~-1.2 to -1.5 from -3.0 (with factory links)

Also, do you know ride heights (center of the hub to fender lip spacing)?

I had nearly pulled the trigger on 15mm spacers. Maybe I should buy 20mm? I'd hate for the tires to rub.

Thank you very much,

Doug
 
You'll have no problems with 15 or 20mm spacers in front with any tire size up to 245. What size tires are you running in the rear?

drew
 
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It is worth noting, I am using adjustable camber links in the rear and that moves the outer wheel out significantly when I added positive camber to ~-1.2 to -1.5 from -3.0 (with factory links)

Most owners posting here are adjusting for camber by pulling in at the bottom of the tire using the shortened LCAs so real world comparisons may not be possible. I'm using Kmac bushings which work in the same manner. I interpret your lowered and camber corrected wheel position to be identical to a properly aligned stock car in the vertical plane. At stock ride height the rear tire may not enter the wheel opening much making comparisons difficult. My own feeling is that 20mm may push your tire out too far. Maybe others here can be of more help. Keep in mind that some spacers do not allow for wheel dust cap clearence which has been discussed here previously (search "spacers" or "dust cap"). Also keep in mind that lug bolts bought for thicker spacers can always be cut down for use with thinner spacers or moved to the front where bolt over- length is not as critical, but not the opposite. Good job with your adj. camber links, btw.

drew
 
Hi Drew,
Thanks for the comments.

I measure 3/4" between the wheel lip and the rear fender. Up front, I measure more like 1 1/2" (when the steering is set directly forward). I had planned to run a 15mm to 20mm spacer upfront like you've confirmed will work. And .... in the rear, I had considered 5mm. I also considered none as I may then lose the hub centricity feature with such a small spacer.

Doug
 
Let me try and post up some pics this weekend and do some measurements. I couldn't tell you the alignment specs as I haven't gotten it aligned in a while. Pretty sure it is stock, I haven't yet gone through the hassle of installing the shortened LCAs, I simply don't drive it enough to worry about premature tire wear.
 
My spacers arrived today. Bought through eBay. 15mm. New wheel lug bolts coming from RadiusDirect. Should arrive soon. Will post pictures. Glen and I plan to do a performance alignment this weekend Saturday.

Doug
 

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Interesting design. I've never seen a spacer with a closed center. 15mm should work out well. I'll look forward to pictures.

drew
 
Hi Drew,
Glen recommended the product to me. I hadn't see that design, either, there is a small step machined within the inside, too. It appears to be necessary to clear the wheel bearing cap.

As a new update, my new wheel lug bolts arrived. I will likely install the spacers later tonight.

Doug
 
Need photos of the back side of the spacers, and a link to the eBay vendor!

:bnb:
 
One more note, from RadiusDirect, I bought 60mm lug bolts for the front and 45mm for the rear. ($90 shipped) I believe I can then add a 5mm spacer for the rear if necessary. My present lugs are (38mm shank length) barely are long enough. I get four complete rotations before they are tight. This doesn't give much room to spare.
 
Test fit the new rear bolts before driving off. With the car on the lift, spin the rear wheels and make sure the bolts don't hit the parking brake springs.
 
well, it looks considerably better upfront. I could have gone +5mm or maybe even +10mm. Still, it looks very good as is.
8" front wheel w/ 245 / 18 and effective ET of 16mm (31mm - 15mm spacer)
Ride height @ 13 3/8" w/ 3/8 tank of fuel in the rear. Muy bueno

I'm happy.

Doug
The new "hub" portion fits the wheels very well. After a test drive, no vibrations, feels great!
 

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