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Started work on replacing shocks. Top nuts came off without too much trouble. Started on the driver's side rear bottom nut and bolt. Major problem. Got the nut off, but it seems the bolt has become "one" [frozen] with the shock sleeve. Of course the shock came with new hardware for the top, but not for the bottom. I'm afraid I will have to cut the old bolt off, destroying it, and would like to have new nuts & bolts on hand, for front and rear, however, the online parts catalogs show the bolts but do not have them listed for ordering. Anybody have any idea what the specs are for these bolts and nuts and maybe where I can get them? Thanks for you help.

Front bolt and nut at bottom of picture:


Rear bolt & nut at bottom of picture.


Thanks for any help.
 

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Premium Member 2002 SLK230K
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There's nothing special about them, if you know the size and length any auto parts store will carry auto grade bolts.
 

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if you are going to purchase new bolts, GET GRADE 8 BOLTS. Much sturdier than regular 'automotive grade' bolts.

a bit more expensive, but worth it.

if you are replacing the shock, you can use heat - a small hand held torch (like you would use to sweat a copper pipe). Once it's hot, it will shrink and probably drop right out.

If not, a small amount of persuasion applied with a hammer will get it out.
 

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Thought grade 8/auto grade were the same thing?
Actually 'automotive grade' is grade 6 bolts. They are ok, better than just purchasing normal bolts off the shelf from the hardware store.

But grade 8 bolts are much stouter than even grade 6 bolts. I believe that they have a higher sheer factor.
 

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Premium Member 2002 SLK230K
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Actually 'automotive grade' is grade 6 bolts. They are ok, better than just purchasing normal bolts off the shelf from the hardware store.

But grade 8 bolts are much stouter than even grade 6 bolts. I believe that they have a higher sheer factor.
This is why I love forums so much, you learn something new all the time. thanks for the good info.
 

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I would like to add one more thing to this post.

I just purchased a new set of MB shocks for the wifes 2002 SLK 32 AMG.

About two years ago, I replaced her factory shocks that were 12 years old. They had stopped functioning properly.

I went with a set of Koni Adjustable Sport Shocks. I thought they were great, as I had installed them on my car about six months earlier and the wife thought my car rode a lot better.

Once we installed them, she could NOT get them adjusted to her liking. So I told her, fine, I'll get the MB shocks instead.

Realize that a set of Koni Sport Shocks (two years ago) cost about $400 for the set of four. Plus the cost of installation.

The MB shocks for a set of five (steering stabilizer shock plus the four on the corners) cost me about $1k. Then I will pay to have them all installed.

Having said all of that, the price that MB sold mounting hardware kits, which includes metal shims, rubber shims, bolts and nuts. It did add about $25/$30 per shock.

But the steering stablizer shock did not list a complete set of all the 'mounting hardware' so I had to purchase all of that individually. About $3 per bolt and about $2 per nut times two.

So you CAN get the individual pieces from MB any time you want. You may have to order them and then wait for them to come in, but that is a minimal problem if you know it in advance and don't just take them off before you have ALL the parts and mounting hardware YOU MUST HAVE before you start the job.
 
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