On ‎8‎/‎12‎/‎2014 at 7:51 AM, CanTechZ said:

On my series I car the choke handle screw is an M2, the length under the head is 6mm and the head is 4mm diameter by 1.5mm high. It is a Phillips pan head type machine screw, if I have a small enough thread pitch gage I will check the pitch later today.

 On my 7'70 I recently noticed that the M2 screw for the choke knob that I was using was actually too long, the correct length should be 5mm.  Using a 6mm long screw could cause damage to the knob if you over tighten. Here is a drawing showing the issue, and a couple of 3D model images:

Here are a few pics and models of the chokes and aux throttle. I have 3D printed a set for my 1970. 

 

 

A few more and the CAD files that a friend made up.

 

https://grabcad.com/library/choke-and-throttle-handles-for-datsun-s30-1971-72-1

 

 

The red handles would certainly liven up the interior if one wasn't concerned about orginality.  I like it.

Dennis

Edited March 4, 201610 yr by psdenno

3 hours ago, beerdart said:

A few more and the CAD files that a friend made up.

https://grabcad.com/library/choke-and-throttle-handles-for-datsun-s30-1971-72-1

I'm actually working on modeling the full choke assembly so I can maybe in the future make some parts to add a hand throttle.  We're getting off topic as this thread started with a discussion of "that little screw".  I will start a new thread for discussing 3d modeling of S30 parts. Anyway here a couple screen shots of the choke assembly so far: