bolt size

[MrRiden]

I've got my steering damper in the mail today but no bolt for the mounting to the lower tree. Can anyone tell me what size thread part # 31421237285 might be? i am trying to avoid waiting another week and ridiculous shipping charges to get this mounted.
rich

[Rob Valdez 79 R65]

You don't have some misc. bolts that you could try, and then measure it?

Do you have a set of calipers?

[MrRiden]

You don't have some misc. bolts that you could try, and then measure it? Do you have a set of calipers?

Found it! 8 mm standard thread from the local hardware emporium. My selection of spare metric hardware is very thin even though I have crates of British bike stuff. These are all post '72 and use SAE bolts. Gots  lots of calipers and even a big a$$ wall chart of fraction / metric / decimal sizes but wasn't too sure of thread pitch.
BTW the cheapo non rebuildable steering stabilizer from http://www.pingelonline.com/index.htm
Is made in Japan, is sort of a universal application and fits the R65LS like it was made for it weather you're a Conservative, Liberal or Undecided.   All for less than $75 shipped. even a better deal if your packin' Euros.
rich
Planning a high speed run on the rain grooves.