Lotus Elan

Lucas l807 light screw thread size?

PostPost by: Concrete-crusher » Sat Jan 12, 2019 4:02 pm

Hi can anyone confirm the screw thread size for the 4 screws that hold the lens on

I have new screws but one female thread is crossed so I want to retap it

Thanks steve
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PostPost by: RichC » Sat Jan 12, 2019 4:11 pm

get yourself a set of BA thread taps ... or at least the one which is the corresponding size
https://britishfasteners.com/threads/
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PostPost by: types26/36 » Sat Jan 12, 2019 4:15 pm

Brian
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PostPost by: Concrete-crusher » Sat Jan 12, 2019 6:43 pm

Thanks for reply, my screws have a dia of just over 3mm

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PostPost by: RichC » Sun Jan 13, 2019 7:23 am

stand corrected ! I thought all small sizes were BA . 6/32 UNC for the rear lights?
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PostPost by: 10kph » Sun Jan 13, 2019 6:54 pm

No 4 BA thread for front and rear lights
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PostPost by: rcraven » Sun Jan 13, 2019 7:22 pm

Which kind of rear light is the Lucas 1807? (Should that be L807?)
If it's the S4 / Sprint rear light it takes 6.32 UNC x 1¼”. At least that's what fitted perfectly when I once renewed them, not 4BA.
PS if you're replacing the screws it's a good idea to use stainless steel cap head screws which are much easier to unscrew when you need to remove them years later.
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