It looks like the 4 cyl. head nuts are NLA from Porsche. The PET lists them as M10. Can I use M10 nuts from the local hardware store?

Thanks!
Konrad

No, if you were closer I'd send you a set.
Used T4 head nuts are reusable.

ARP used to make a set.

Thats interesting.
Why can't you use regular m10 nuts for the cylinder heads?

Zach

The M10 nuts for the heads are 15mm heads, and thicker. The ones at your local hardware store are going to be 17mm heads, and won't allow you to put a socket on them in the recesses in the cylinder heads.

There are plenty of spares out there. Just hit up a VW wrecking yard with a screwdriver and a 15mm socket.

Clay

I have a bunch of new ones that I had zinc plated. PM me if you want some.

They are 10mm tall.

Are hardened nuts needs for head studs?

Yes, finding the exact specification of hardness is not easy to find.

Hardware that has a part number that starts with N in the PET, you can use non VW parts. Other things like head nuts have a specific part number. You can find them still searching for "021 101 457."

The 914 PET doesn't list them but it's in the VW bus Parts book I have.

https://dunebuggywarehouse.com/hex-nut-cyli...d-21101457.html

This place appears to have them new.

@krazykonrad

I have them in my PET version.

The washers are still available from Porsche. You would think that they are some special heat-treated part or something, but the same part number pops up all over, including in the suspension.

Ah nice, I see them now.

Anyone know what the pitch is on these nuts?

Greg W

1.5

Most suspension washers are heat treated as well.

Yea, I noticed some of the suspension lots are grade 10 instead of the usual grade 8

Thank you.