Does any one know the thread size of the hex nut that mounts the steering damper to the drag link? It's the center threaded stud in the attached image.

thanks

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Any ideas on the size of this nylon self-locking nut? It's the same as the new tie rods I purchased. I tried a 10 x 1.5mm but it does not fit.

1.5mm seems a bit coarse. You sure it isn't 1.25mm? I'd take the part to a proper hardware store and find a nut that fits. If they don't have a self-locking, visit an auto parts house on your way home and pick one up in the correct size.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

In many cases, I've found that MB used extra fine threads on parts that are oriented vertically on the suspension. Some auto parts stores carry these in their "Help" section.

When I went through this, I could not find a standard hardware store, including Fastenal, that carried them. I believe it was Autozone that carried them. IIRC, it was 10 x 1.25.

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Sam

84 300SD 350K+ miles ( Blue Belle )