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Longer Wheel Bolts for Spacers

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Old Aug 14, 2014 | 08:20 AM
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D7reU's Avatar
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C63
Longer Wheel Bolts for Spacers

Hi, I am about to order H&R spacers, but I need longer wheels bolts. I am after some good quality (10.9 grade) bolts. Is the OEM bolt 28mm?

Front - 12mm Spacer / 40mm Bolt
Rear - 10mm Spacer / 38mm Bolt

Just cant seem to find the ones I want.

Thanks.
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Old Aug 14, 2014 | 08:56 AM
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'10 C63
The OEM are 27mm. R1.5 ball seat R14.
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Old Aug 14, 2014 | 08:57 AM
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From: Germany
E500 estate
https://www.spurverbreiterung.de/

It`s in Germany but there you can find whatever you need.
Spacers, Bolts,...and everything also in dimensions you want.
They do it for you.
Spacers 17,3mm? No problem
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Old Aug 14, 2014 | 09:30 AM
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2010 C63 AMG, 2009 ISF , 2002 L-Tuned IS300, 2011 ML350
I got the exact thickness spacers as u, and I'm using 40mm longer ball seated bolts.. No problem with rubbing my abs mechanism in the rear (some ppl rubs).

I got my set at essexdistributors in Vancouver.
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Old Aug 14, 2014 | 10:27 AM
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2014 C63 507 Sedan
Same here - I have the exact thickness spacers (12mm front, 10mm rear) and went with 40mm black ball seated bolts.

However, my bolts did rub against the parking brake in the rear. I took them (rear bolts only) to a local machine shop to shave off 2mm and the problem went away.

I got the bolts from Chris at FXAutodesign (he is on this forum - search for "Suspension Special")

Last edited by ld63; Aug 14, 2014 at 10:29 AM.
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Old Aug 14, 2014 | 04:09 PM
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
Try Otis Inc LA. They have RAD bolts as well.

http://otisincla.com/index.php?route=common/home
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Old Aug 18, 2014 | 10:27 AM
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From: UK, London
C63 AMG - PP+
Originally Posted by D7reU
Hi, I am about to order H&R spacers, but I need longer wheels bolts. I am after some good quality (10.9 grade) bolts. Is the OEM bolt 28mm?

Front - 12mm Spacer / 40mm Bolt
Rear - 10mm Spacer / 38mm Bolt

Just cant seem to find the ones I want.

Thanks.


Went 12mm H&R on std rims and H&R extended bolts so there are H&R bolts available.
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Old Aug 20, 2014 | 01:14 AM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
H&R or RAD are your best choices - and if you get anything else, make sure they're made of 10.1 grade steel (there is a 10.1 marking on the bolt heads). If you can't find 38mm bolts, get 40mm and get them cut by 2mm by your mechanic or a machine shop.
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