Headlamp screws

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Simonpfhc
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#1 Headlamp screws

Post by Simonpfhc » Mon Jan 09, 2017 9:09 pm

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.
Simon
62 3.8 FHC
52 XK120 OTS
91 Porsche 928GT

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tim wood
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#2 Re: Headlamp screws

Post by tim wood » Mon Jan 09, 2017 9:29 pm

Hi , I asked the same question a while ago.

Size is 8-32 unc

Tim
Series 1 FHC purchased 40 years ago. Courted my wife in it.
Series 1 2+2 when the kids were small now sold.
Series 1.5 OTS in opalescent maroon, Californian car. My retirement present.

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Simonpfhc
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#3 Re: Headlamp screws

Post by Simonpfhc » Tue Jan 10, 2017 7:17 am

Thanks Tim :-)
Simon
62 3.8 FHC
52 XK120 OTS
91 Porsche 928GT

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chrisfell
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#4 Re: Headlamp screws

Post by chrisfell » Tue Jan 10, 2017 10:00 am

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.
Chris '67 S1 2+2

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tim wood
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#5 Re: Headlamp screws

Post by tim wood » Tue Jan 10, 2017 12:55 pm

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
Series 1 FHC purchased 40 years ago. Courted my wife in it.
Series 1 2+2 when the kids were small now sold.
Series 1.5 OTS in opalescent maroon, Californian car. My retirement present.

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mgcjag
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#6 Re: Headlamp screws

Post by mgcjag » Tue Jan 10, 2017 2:00 pm

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
Steve
1969 S2 2+2 & Building a C type replica

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chrisfell
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#7 Re: Headlamp screws

Post by chrisfell » Tue Jan 10, 2017 6:01 pm

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.
Chris '67 S1 2+2

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#8 Re: Headlamp screws

Post by Simonpfhc » Tue Jan 10, 2017 7:00 pm

Thanks guys, glad we got there in the end. It looked as if there were three different answers ;-)

Cheers.
Simon
62 3.8 FHC
52 XK120 OTS
91 Porsche 928GT

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