Custom M12 Bolts make in PEEK

[blackburn mark]

OK I'm with you, to be honest I am not so keen on the job either, I was thinking thread milling them was the way to go, two tool changes+slit saw, it would mean more waste (for work holding) but the hex head would be nice n simple
I would see how far from the 12mm the sample was and speak to the customer if there was anything wild going on.
I am sure with a thread mill you could sneak your way in till you hit the sweet spot then run 12 off..... but Iv never cut Peek....

I get the feeling the issue is one of material over an uber precise M12

[m_c]

For CNC you still need some form of gauge to check the size/fit.
CNC has the advantage that it should be easier to get things on size, and then once things are set on size, they shouldn't change by much.

From the original post, I'm assuming tolerance isn't that tight.

[Tenson]

Yes tolerance isn't that tight at all. They are only meant to be done up finger-tight. Hex head is not needed. However my friend said he has run out of money for now and will need to wait a few weeks.

[anthonycooper]

hex rod ,,in the lathe no problem 2 min job