Ford Capri Mirror Screw Size

[Onoff]

Trying to gauge this thread size:

It's not M18 x 1 or 1.5. Core measurement below in metric & imperial.

Consulting Mr Zeus then ¾-16 UNF is my best guess at the moment where the core is 0.6823". Currently printing a test thread. Somewhere around 20tpi maybe...

 

[Bullet2012]

are you sure on the thread count ? looks more UNC, but what do i know

 

[Nomad]

This website often has a parts drawing / diagram next to the piece they are selling - that might give you the info you need

Capri

For oldschooloval Restorers

oldschooloval.com

 

[zzr1200]

20 x 2mm probably, in the Engineers Black Book

20 X 2 METRIC - Taps & Dies, Reamers, Milling Cutters, Tracy Tools

www.tracytools.com

 

[Onoff]

Well ¾-16 UNF goes in a couple of threads nicely then just stops so a higher tpi:

 

[dave h 2]

UNEF is a thing, 3/4 20 tpi 60 deg flank

 

[8ob]

And there is always cycle thread.

Bob

 

[Onoff]

UNEF is a thing, 3/4 20 tpi 60 deg flank

Yep, exactly that. Built in to the Fusion 360 generator which is handy. Also tried ¾-18 UNS but too coarse still.