WANTED: Thumb screw for counterweight on Grado walnut arm

[lowpoke]

I'm restoring a beautiful walnut Grado Laboratory Series tonearm, but I'm missing the knurled thumb screw that secures the rear steel counterweight in position. Can anybody help?

Can clearly be seen here on top of the black carrier:

[whboyd]

I may have one - got a small box full of grado arm parts.
Do you still need it?
Bill Boyd
Cary, NC
919 270-8230

[lowpoke]

Thanks for your reply Bill. I still need it.
PM sent.