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CV Bolts?

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Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#857767
Hey people.

What size are the CV bolts on a type 1??

Chasing length and diameter.


Don't have any bolts but I'm converting my car to IRS, so I'll go and get some allen headed ones tomorrow after work.

Cheers


Smiley 🙂
If you said I was a Volkswagen man, you'd be right.

Smiley Veteran Volks Folk

2,125 posts · joined Oct 2008 ·

#857771
Aussie Dubbin wrote:Are they hardened?
I'm not sure if the stock ones are.

I will be buying high tensile.



Smiley 🙂
If you said I was a Volkswagen man, you'd be right.

RISKY4LIFE Officially Full-On Dubber

308 posts · joined Jul 2010 ·

#857790
im sure the stock ones are high tensile
8 mm by 1.25 off the top of my head
and about 60mm long???
i can cheak leter
vw shops will sell new ones and the have a ribbed washer behind them
edit now that i think about they might be 6 mm
dam my bad eyes

RISKY4LIFE Officially Full-On Dubber

308 posts · joined Jul 2010 ·

#857793
just cheaked they are an 8 by 1.25 and about 47 mm not inc the head 🤓
they also have a funny looking plate for every two bolts

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 ·

#857824
All socket head cap screws are grade 12.9, the closest lenght you will get is 50MM and are readily available from any good engineering bolt supply shop.

HappyDaze Superannuated

2,887 posts · joined Jun 2009 ·

#857826
Cap screws, which is what you need, are very high tensile.........12.9, I think. Normal HT bolts are grade 8.
I'd rather wear a Beetle out by racing it than by polishing it!

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#857833
Smiley wrote:Hey people.

What size are the CV bolts on a type 1??

Chasing length and diameter.


Don't have any bolts but I'm converting my car to IRS, so I'll go and get some allen headed ones tomorrow after work.

Cheers


Smiley 🙂

8mm x 1.25 thread and about 55mm long
they have special washers under them... ribbed..

some were allen key headed and some were splined heads
they are very high tensile,..
they cannot be much longer ....

Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

chillihilli Commited Dubber

64 posts · joined Oct 2010 ·

#857856
I just bought some as I wasn't sure I would get my originals off in one piece - turns out I was right 🤘

I am told by a reliable source that the hex head were for the kombi and the type 1 is an 8mm spline socket head. The bits for your socket wrench are a bugger to find and cost over $20 in a specialty tool shop. Or you can spend $50 and get them in a king chrome kit at Bunnies. For me the rest of the kit was no value.

So the Germans did quite a few things right - but I reckon they muffed this one. Take the smallest cup bolt you can find with a shape which is awesome for catching grease and dirt - and stick it on the dirtiest greasiest part of the car you can find - voila you have the cv bolt design brief for a vw.! LOL pulled mine just last night so it's still fresh.
71 Clementine Superbug Autostick

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#858086
Hi
I have never had any problems with mine...
then again I degrease under My engine and gearbox frequently
[when the painted bits get dirty..lol]
the bolts are about 48mm long excluding the head...
all mine were the splined type and the splined sockets are usually available at many of the VW parts shops...
I also have some allen socket types...
I think the allen headed ones may be the best.. especially if You have excellent quality UNBRAKO allen keys...
I have seen the special washers for sale in the USA VW shops...

You can get 50mm Hi tensile allen headed bolts from bolt shops...
a dab of loctite on the end of the threads may give You piece of mind... lol as I have heard of them coming loose..
I've had mine on & off a few times and never had a loose one

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#858162
I also bought a socket with the allen key in it...
much better than using an allen key with a large socket for leverage...

snap on should be sold in shops...

only ever seen them in Mechanics tool boxes.. lol

beautiful tools.... lol

LEE
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---