There is a reason why I asked for advice on here, no disrespect but the route of going ot my local main dealer at the moment is enough to put me off for life, besides, they're not always as helpful as they could be especially when they have a bogus returns policy. I was linked to one place elsewhere and some are a couple of hundred pounds for a set...
Oh, I thought there maybe a reason the most obvious answer hadn’t been considere.
M12x1.5 thread size (40mm long) are what I've purchased to to check fitment.
Sorry, i wasn't being rude, i had to purchase an item before after they had said which part i needed, it was ordered from Germany and took a few days or so to arrive, when it arrived it didn't fit but he stipulated there was no return on the item even though i purchased it over the phone...
If the thread size is OK and the seat is correct 'cone or ball' and they have been made out of suitable steel to the right specifications use them. I will ask again, but in a different manner . What size socket fits them ?
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Hard to be absolutely certain from the photo that the OP's take a 15mm socket - but definitely not a 19mm!There we go , Bellow has the answer , M12 would normally be a 19mm socket, which will not fit in the holes on your wheels. .
What’s the issue with the bolts you have - are they just too shiny?
The correct bolts should be M12x1.5 and about 60mm in total length - 20mm thread, 20mm shank and 20mm for the ball seat and head. The depth of the hex head part can vary to cosmetically match the wheels (some are shallower than others) - likewise MB did extended head bolts with added shank on some models with deep wheels, but they were discontinued as they used to snap. But the threaded part and length from the end of the bolt to the ball seat is usually the same on most MB alloy wheel bolts for these wheels.
17mm hex is the standard size for these bolts, as per almost all MB of that era.
The original bolts would have had a finishing cap on them made of alloy/stainless steel that can be polished up.
MB don’t supply those bolts anymore. You’ll just get the standard steel bolts with a galvanised paint type finish - they usually begin to rust after a while.
Solution - paint the bolts you have with a dusting of the same paint that your wheels are in. Hammermite silver looks okay on bolts IMHO (that’s so long as the bolts fit okay?) - it’s only the head you will see.
Second option - get a set of used bolts from a breakers or elsewhere. If you get stuck, let me know and I’ll have a look what I have spare. The original bolts are best and you can polish the ends up if you like, or leave them as they are (usually a dull a bit after a few years use)
If you are unsure about the correct length, put the wheel bolt into the wheel are see how much thread protrudes through. You want to be careful on the rear that they don’t foul the handbrake mechanism
Yes, too shiny and they look too small to me, I've seen some standar steel ones which look far better against even a refurbished alloy, if the wheels were shiny chrome then they'd be fine.
