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screws for inner front roof panel? [message #248521] Sat, 26 April 2014 15:41 Go to next message
pzerkel is currently offline  pzerkel   United States
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Registered: September 2007
Location: Salisbury, IL
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Senior Member
So I had taken the panel out a while ago to clean and point (in hindsight I wish I had left it up, but live and learn).

Anyway, I seem to have misplaced the screws. The parts manual shows them as line item 12 in section 23.080 but there is NPN (which I assume means No Part Number) and there is no size given. Anyone know what size/type these are, so I could get some from either McMaster or local hardware store. I have not called our vendors yet, but it just dawned on me that that would probably be a good idea.


Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
Re: [GMCnet] screws for inner front roof panel? [message #248533 is a reply to message #248521] Sat, 26 April 2014 18:22 Go to previous message
USAussie is currently offline  USAussie   United States
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Registered: July 2007
Location: Sydney, Australia
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Senior Member
Paul,

I went to the Parts Book 78Z and found 23.080 on page 23-74. Key 12 is NPN as you noted and you are correct it means No Part Number.


If I recall correctly those are stainless steel oval head countersunk Philips screws; I am not sure about the size and length,
however, I believe them to be number 8 or number 10 and 3/4" long, I'm leaning towards number 8.

Below is a link to a picture of those screws:

Tiny URL: http://tinyurl.com/mdv6y4l

Full URL:
https://www.google.com.au/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=gtx9fiOV4FQ9YM&tbnid=Iha GWzSVKg671M:&ved=0
CAUQjRw&url=http%3A%2F%2Fwww.boltdepot.com%2FProduct-Details.aspx%3Fproduct%3D5453&ei=uTlcU5rwFITFkwX224GgCg&bvm=bv.65397613,d.dGI&p
sig=AFQjCNEv73cTspD5F3yAWGyn_wHZ5eQxLg&ust=1398639416286232

Below is a link to the McMaster Carr page with those screws:

http://www.mcmaster.com/#oval-head-sheet-metal-screws/=rpkle7

316 SS is better quality (less likely to rust than 18-8)

If you scroll down that page you will find chrome plated screws with the washers permanently attached.

Below is a link to the McMaster Carr page with the countersunk washers:

http://www.mcmaster.com/#standard-washers/=rpkqde

Scroll down to Countersunk and click on the picture.

Having provided all the above you could visit a local Home Depot, Lowe's, Ace or True Value store in your area that have the Hillman
bins and find them there. Since I'm not sure of the size buy enough #8 and #10 screws to do the job and return whichever doesn't
fit.

Regards,
Rob M.
Sydney, Australia

-----Original Message-----
From: Paul Zerkel

So I had taken the panel out a while ago to clean and point (in hindsight I wish I had left it up, but live and learn).

Anyway, I seem to have misplaced the screws. The parts manual shows them as line item 12 in section 23.080 but there is NPN (which
I assume means No Part Number) and there is no size given. Anyone know what size/type these are, so I could get some from either
McMaster or local hardware store. I have not called our vendors yet, but it just dawned on me that that would probably be a good
idea.
--
Paul

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
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