Torquing M96X0.5 1

[drawoh]

I have an optical device with approximately the thread noted above. It is coming loose. We are wondering how much torque we can put on it.

I can do regular thread calculations on it from Machinery's Handbook or from Bickford, but I am not confident about shear. Machining errors of 0.1mm will cost me a significant proportion of my thread engagement. I have no resources for inspecting the threads, particularly the internal one.

Is there any literature out there on large diameter, ultra-fine pitch threads? Any thoughts on this?

JHG

 

[MikeHalloran]

I'd assemble it with Loctite PST (weak, but effective), or split it and add a pinch bolt.


Mike Halloran
Pembroke Pines, FL, USA