Hex bolt and washer at the top of each door. 356C. Painted?

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lee callaghan
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Hex bolt and washer at the top of each door. 356C. Painted?

#1 Post by lee callaghan » Mon Aug 14, 2017 12:45 pm

At the top of each door just below the glass is a hex bolt and washer that are sometimes body coloured painted and sometimes original silver.
Heres a photo.
The factory liked a paint brush to dab about as the cars rolled forward and various areas like the jack point would have had a quick 1 coat touch up. Same with the bolts on the hood hinges ( which are often not painted either on restorations). So, did they paint this bolt as well?
I think the answer is yes but lets see.
L
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Brad Ripley
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#2 Post by Brad Ripley » Thu Aug 17, 2017 1:13 am

Painted.

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lee callaghan
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#3 Post by lee callaghan » Thu Aug 17, 2017 2:40 pm

Thanks Brad.
Paint brushes ready restorers...

Robert Kenton
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#4 Post by Robert Kenton » Sun Aug 27, 2017 10:51 am

Brad Ripley wrote:Painted.
Can't tell from the picture but I assume this is the bolt/washer combo on the rear (latch side) of the door?
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Mike Smith
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#5 Post by Mike Smith » Mon Aug 28, 2017 4:55 am

This Bolt is a Special


Porsche Part Number 900 189 002 02 and described as a Round Head Screw AM 6 x 15 Din 7986-4S

It is actually a Hex Bolt with a `slightly` domed top

A standard 6 x 15 Hex Head Bolt has a different Din Number - Din 933-8g

As Brad states these were Painted (Body colour) and is one of the many items touched up with a brush on final assembly
Mike Smith (Essex - UK)

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Doug McDonnell
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#6 Post by Doug McDonnell » Wed Aug 30, 2017 10:12 am

As Mike Smith said this is a specially shaped bolt with domed head. Hard to tell from your photo if you have the correct one. It is available: http://www.stoddard.com/64454248100.html
1965 356C There is never enough time to do it right, but always enough time to do it over.

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Mike Smith
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#7 Post by Mike Smith » Wed Aug 30, 2017 10:52 am

Doug States -
Better if they are not plated - the paint adheres better

Interestingly we were asked to work on a car that was VERY, VERY original and untouched
When we removed the door Panels - these special bolts had been used in EVERY location where it was possible to use them
I guess Fritz just took a handful from the box and went for it
Mike Smith (Essex - UK)

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Greg Bryan
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#8 Post by Greg Bryan » Wed Aug 30, 2017 11:17 am

I made my own when restoring the doors on my car. Chucked a bolt in a lathe (you could use a drill too, held in a vice) and used a hand held sander/grinder to shape the head while it was spinning in the lathe. Very easy and cheap
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John Hearn
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#9 Post by John Hearn » Thu Aug 31, 2017 9:58 am

The special bolt is also available from Porsche Classic. It is correctly describe as a lens shaped bolt.
The washer underneath is also a special washer. I will try and find the number when I get get back from the sucessful Registry Heartland holiday.
This bolt is my "thing" to look at on any restoration, in addition to the incorrect use of non slotted screws holding the headlight rims. Just my 2 cents...............
KTF
John

Brad Ripley
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#10 Post by Brad Ripley » Thu Aug 31, 2017 12:02 pm

See http://www.nlaparts.com/store/special-d ... -3543.html
In addition to the kit, you will need five DIN 9021 flat washers.

They're zinc plated and painted will hold pretty well. But, as Mike pointed out, maybe the paint won't stick as well. Of course, the paint should chip off just like the originals, don't you think, Mike?

The head of the bolt is rounded and painted probably so it didn't "stick out like a sore thumb" on the end of the door. Also, on the inside of door, if the usual taller-headed normal hex head bolt were used, the upholstery might be compromised. --- the long story for just a bolt!

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Re: Hex bolt and washer at the top of each door. 356C. Paint

#11 Post by Mike Smith » Thu Aug 31, 2017 6:39 pm

The Long story for just a bolt

That's what keeps us going, I guess - Brad
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#12 Post by Robert Kenton » Sat Sep 02, 2017 8:48 pm

Brad Ripley wrote:See http://www.nlaparts.com/store/special-d ... -3543.html
In addition to the kit, you will need five DIN 9021 flat washers.

They're zinc plated and painted will hold pretty well. But, as Mike pointed out, maybe the paint won't stick as well. Of course, the paint should chip off just like the originals, don't you think, Mike?

The head of the bolt is rounded and painted probably so it didn't "stick out like a sore thumb" on the end of the door. Also, on the inside of door, if the usual taller-headed normal hex head bolt were used, the upholstery might be compromised. --- the long story for just a bolt!
It appears that one of these bolt/spring washer/flat washer combos goes on the front (hinge side, through an access hole under the rubber moving) and the rear (latch side). Cannot tell from the schematic in the Porsche Katalog pdf however where others might go. IE, in your kit, why are there 5? Five per door? If two per door as I described above, where does the fifth bolt go?

Thanks, Bob
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#13 Post by Brad Ripley » Sun Sep 03, 2017 12:47 am

See photo below from B/C workshop manual, pg B17 . They are four of the bolts shown with arrows. I thing the four bolts in the center of the picture.
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#14 Post by Robert Kenton » Sun Dec 24, 2017 2:02 am

Brad Ripley wrote:See photo below from B/C workshop manual, pg B17 . They are four of the bolts shown with arrows. I thing the four bolts in the center of the picture.
FYI, the supplied bolts of the kit fit perfectly inside the door, but are too long at the door edge, and when snugged up, interfere with the window operation. After amputating about 1/4" from these, all was well.
Robert W. Kenton

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Mike Wilson
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Re: Hex bolt and washer at the top of each door. 356C. Paint

#15 Post by Mike Wilson » Sun Dec 24, 2017 1:33 pm

I recently disassembled window regulators for a '63 cab. They had the domed bolts holding the rear window channel to the door.

Mike
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