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#1 Headlamp screws

Posted: Mon Jan 09, 2017 9:09 pm
by Simonpfhc
Hi all,

Does anyone know the thread size of the 12 screws holding the chrome surround that holds the headlamp cowls on a S1 FHC? P/N is BD22780/4. I have the screws but need to buy a tap to clear the threads.

Thanks.

#2 Re: Headlamp screws

Posted: Mon Jan 09, 2017 9:29 pm
by tim wood
Hi , I asked the same question a while ago.

Size is 8-32 unc

Tim

#3 Re: Headlamp screws

Posted: Tue Jan 10, 2017 7:17 am
by Simonpfhc
Thanks Tim :-)

#4 Re: Headlamp screws

Posted: Tue Jan 10, 2017 10:00 am
by chrisfell
tim wood wrote:Hi , I asked the same question a while ago.

Size is 8-32 unc

Tim
Er... not on my car. 5/32 x 32tpi.
As it happens, this was the 'standard' thread and pitch of Meccano screws.

#5 Re: Headlamp screws

Posted: Tue Jan 10, 2017 12:55 pm
by tim wood
Umm, I don't know what to say at this point! I posted the same question in November 2009 and Dave Rawle was kind enough to reply with the info as per my previous note.

I purchased the tap size mentioned by Dave and cleaned out the threads and all is well. My car is a 66 model.

Maybe things change, others may be able to help

Regards

Tim

#6 Re: Headlamp screws

Posted: Tue Jan 10, 2017 2:00 pm
by mgcjag
Hi Simon....have a look at this from the factiry fit bottom of page 5.....shows the various screw options dependant on year/model viewtopic.php?f=4&t=2006&start=40

#7 Re: Headlamp screws

Posted: Tue Jan 10, 2017 6:01 pm
by chrisfell
tim wood wrote:Umm, I don't know what to say at this point! I posted the same question in November 2009 and Dave Rawle was kind enough to reply with the info as per my previous note.

I purchased the tap size mentioned by Dave and cleaned out the threads and all is well. My car is a 66 model.

Maybe things change, others may be able to help

Regards

Tim
Ah! Both are correct!
A number 8 screw is 5/32"
So your number 8-32 tap will do the same job as my 5/32" x 32 tap.

I knew there was an answer somewhere.

#8 Re: Headlamp screws

Posted: Tue Jan 10, 2017 7:00 pm
by Simonpfhc
Thanks guys, glad we got there in the end. It looked as if there were three different answers ;-)

Cheers.