Page 1 of 2

Thread sizes and length clarification

PostPosted: Mon Dec 24, 2018 11:17 am
by Icedmunkie
Hello,

Last few bits I'm having to find for the rebuild are some screws and bolts and wiper blades

What lengths are Firenza wiper blades, I don't have any to measure :oops:

Sidelight Screw 9907000 - No pitch or length - does anybody know?

Are the following the correct lengths as I cant see clearly from the PDF parts manual :cry:

1559967 - No10 24x 1.5
159920 No 10 24x.1/2
159967 No 8 15x ¾
window winder screw - Hex Screw No 10 24x 1.25 (longer one for the SL Trim door cards)

Lastly, how do you hold your badges on?

Chris

Re: Thread sizes and length clarification

PostPosted: Mon Dec 24, 2018 5:26 pm
by 1972nail
Standard wiper blades are 14" but you can fit 15" without any trouble.

Re: Thread sizes and length clarification

PostPosted: Mon Dec 24, 2018 7:48 pm
by droopsnoot
I have slightly different lengths on some of those screws:

159920 - No. 10 - 24 x 0.5"
159967 - No. 10 - 24 x 1.5"

I don't have a 1559967 listed, but I do have a No. 8 0 15 x 0.75" screw in the same area as the above.

The indicator lens screw has been a subject of discussion before, we did wonder at one point whether it might be a BA thread. I haven't tried measuring it for a long time because I haven't been looking for one, if you haven't had an answer by the time I'm back in the shed I'll try to remember to give it a go.

Re: Thread sizes and length clarification

PostPosted: Fri Dec 28, 2018 12:27 pm
by chopper
droopsnoot wrote:
The indicator lens screw has been a subject of discussion before, we did wonder at one point whether it might be a BA thread. I haven't tried measuring it for a long time because I haven't been looking for one, if you haven't had an answer by the time I'm back in the shed I'll try to remember to give it a go.


Could be UNC no.6 x 32tpi. x 1.25 long-if I`m following this thread :wink: correctly-dia. 0.136" (thread data sheet ) mine measures 0.133"

I can`t see anything else close to this but have seen mention of `domestic electrical screw`in the past but whilst dia.(M3.5) is very close thread is about 42tpi.
hope this is of help

Re: Thread sizes and length clarification

PostPosted: Sat Dec 29, 2018 6:48 pm
by Icedmunkie
Thanks guys that will help a lot, will try and find these screws and see what can be done

Chris

Re: Thread sizes and length clarification

PostPosted: Mon Dec 31, 2018 7:22 pm
by 1972nail
`domestic electrical screw`


I believe those fit the later plastic Chevette (metric) indicators.

Re: Thread sizes and length clarification

PostPosted: Wed Jan 02, 2019 11:13 am
by chopper
1972nail wrote:
`domestic electrical screw`


I believe those fit the later plastic Chevette (metric) indicators.



I agree, have checked a plastic body version Not UNC.

Re: Thread sizes and length clarification

PostPosted: Wed Jan 02, 2019 11:30 am
by droopsnoot
Icedmunkie wrote:Lastly, how do you hold your badges on?


Depends on the badge. For example the "Magnum" badge on an estate tailgate has nuts on the back of it (there's probably a special name for them, "speednut" springs to mind, but not a nut with a regular thread), the individual "Vauxhall" letters and some other badges just press into a metal/plastic bush in the panel hole.

Re: Thread sizes and length clarification

PostPosted: Sun Jan 06, 2019 3:29 pm
by Icedmunkie
droopsnoot wrote:I have slightly different lengths on some of those screws:

159920 - No. 10 - 24 x 0.5"
159967 - No. 10 - 24 x 1.5"

I don't have a 1559967 listed, but I do have a No. 8 0 15 x 0.75" screw in the same area as the above.

The indicator lens screw has been a subject of discussion before, we did wonder at one point whether it might be a BA thread. I haven't tried measuring it for a long time because I haven't been looking for one, if you haven't had an answer by the time I'm back in the shed I'll try to remember to give it a go.



I cant quite seem to find the alternative you have for 1559967 in my diagram, can you take a picture of its location, it is also a very unusual size, just wondering what its for.
Basically I need all the cowling screws front, back and middle
and window winders if that makes life any eaiser!!

Re: Thread sizes and length clarification

PostPosted: Sun Jan 06, 2019 7:43 pm
by droopsnoot
That '0' in the middle should be a dash, so the size should read No 8 - 15 x 0.75". Those are the four screws that join the upper to lower cowling, 9906107 but NLS, use 11045123. G4-89 in my diagram.