Bolt length for motor mount on 1979 240D???
 

I am in the process of changing my motor mounts on my 1979 240D, as it has been shaking noticeably ever since I bought it a few months ago. After sliding under the car, I discovered the reason for the shaking. The 8mm bolts that come up from the bottom were missing! Nearest MB dealership I called doesnt have any in stock but can order them(Monday delivery at the best). I asked for the length so I could check locally at auto parts and equipment dealerships, but the MB dealership didnt even have one to measure! Can anybody tell me the length of the 8mm hex bolt that comes in from the bottom on the motor mounts? Would greatly appreciate the info!
thanks,
Jim

nobody knows? I thought surely there would be some mechanics in here, but possibly they are all working?(as they probably should be)
Jim