Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing Windscreen screw pitch and size?

My 1994 plus 4 has the Perspex wind deflectors fitted onto the windscreen and I’m not sure they look right. I know they’ll come off easy enough but what size are the screws that will need replacing? Not of my metric screws will fit so I think they’re either UNF or BA. Anyone know the size and where I’d get replacements please?

I got mine from Ebay and you are right they aren’t metric

I’ll look back and see if I made a note of what they are

One way you can do it is to measure the precise diameter in mm’s using a gauge and then consult the UNF and BA charts to identify the correct size machine screw

Just remember 25.4mm to an inch when doing your calcs

Remember to watch the length ! Don’t crack the screen!

Havent measured the screw - but the length on second try.

You can get them at Melvyn Rutters.

https://mogparts.net/product/windscreen-screw-set-stainless-chrome-plated

The note I have made from another forum is that they are 10-32

However I did visit the company that makes the screens and they said the screws are 1/4 whitworth. I have a spare screen and will check

I have checked my spare screen (9 stud) and a 2 BA screw fits, and a 10-32 will also fit, the tpi is very close. I expect the original fit is 2BA and someone in the USA has found that a 10-32 does the job

Thanks everyone. Found a place where they’re literally pennies each so ordered a set of BA and also the 10-32 just in case. Thanks again

I checked a couple of windscreen frames I have stored away, which includes a factory 'easy up', and they have the same thread.

Just to close this out, the correct size is 2BA. The 10-32 would fit (by forcing it) but I think it would ultimately knacker the thread. Or, at least this was the case on my plus 4