Help me with a Fidelity Research FR64 part


I got a mint FR64 tonearm at a great price. Sadly there was a catch it did not have the nut that fastens the arm at the base. It is a really fine thread (25 threads per inch) in fact my machinist doesn't have tooling for this.

so I want to know if anyone out there knows where I can get the said nut, or if they have one they can sell me - thanks
parrotbee
Sure, we're talking about $500 B-60 replica, i have never owned the original but it's too expensive anyway. I must admit the price for the original B-60 is absolutely crazy, for the price of that original part alone i bought the whole NOW Lustre GST-801 tonearm with similar base with VTA on the fly!

The screw in B-60 replica is made of steel (just like the whole replica), the diameter of the "nose" of the screw is 1.9 mm but the slot in the inner part of the base is slightly bigger, anyway the difference is tiny. 

However, the horizontal play between the arm and the base is big when the arm is attached everything is tightened. It is not acceplable for me, because i owned many tonearms and none of them have any play between the arm and the base. This problem  with B-60 and 64s is easy to fix as i described. 

Hammering the screw "nose" from the top (this part does not have a thread on it) is easy, but must be proceed carefully. We're talking about a very tiny difference, so it's not a big deal. No need for the new screw. As i said the problem fixed and my FR64s in B-60 replica sits perfectly (no play between the parts anymore). 
Parrotbee, I hope there is no blame at all attached to helping with this problem. Certainly none aimed at you or your machinist. Where are you located? Has any further progress been made?
Oh none taken - I'd be a total donut if I put something onto a forum and not expect responses.

I'm in the UK.

I have resolved the issue as @chakster donned his proverbial audiophile cape and sold me a base - in fairness he offered just the nut.

As it happens you can still get the b60 replica from yahoo auctions in Japan - that said I was a tad bemused with how yahoo auctions works so I just did not bother with that.

All said and done I am making my own adjustable arm mount using a micrometer adjustable lab jack
Oh none taken - I'd be a total donut if I put something onto a forum and not expect responses.

I'm in the UK.

I have resolved the issue as @chakster donned his proverbial audiophile cape and sold me a base - in fairness he offered just the nut.

As it happens you can still get the b60 replica from yahoo auctions in Japan - that said I was a tad bemused with how yahoo auctions works so I just did not bother with that.

All said and done I am making my own adjustable arm mount using a micrometer adjustable lab jack