Stainless steel exhaust studs

[Trstno1]

Does anyone know the size and pitch of the exhaust studs in our cars?

Also, does anyone know where to purchase the stainless steel studs, lock washers and nuts?

[Delorean Industries]

Does anyone know the size and pitch of the exhaust studs in our cars?

Also, does anyone know where to purchase the stainless steel studs, lock washers and nuts?

http://www.deloreanindustries.com/st...-kit-12-studs/

[PJ Grady Inc.]

We make these studs. They are M7 hardened stainless steel and are virtually impervious to corrosion. DPI carry's them as well. They are not on our new website yet but pricing is the same as Josh's and they are also available as a complete kit with one piece exhaust manifold gaskets.
Rob Grady
(800)350-7429

[Bitsyncmaster]

Would it be better to use brass nuts on those stainless studs?

[PJ Grady Inc.]

We have three options on that. If you go with stainless on stainless you must use a product called tefgel on the threads to avoid galvanic action from the heat.
We can supply brass nuts but they are not particularely strong and can strip if overtightened.
My first choice is copper coated steel locking flange nuts which we include in our premium kits with the one piece OEM manifold gaskets.
Rob

Would it be better to use brass nuts on those stainless studs?

[Trstno1]

We have three options on that. If you go with stainless on stainless you must use a product called tefgel on the threads to avoid galvanic action from the heat.
We can supply brass nuts but they are not particularely strong and can strip if overtightened.
My first choice is copper coated steel locking flange nuts which we include in our premium kits with the one piece OEM manifold gaskets.
Rob

Hey Rob, how much is the premium kit?

[andyd]

We have three options on that. If you go with stainless on stainless you must use a product called tefgel on the threads to avoid galvanic action from the heat.
We can supply brass nuts but they are not particularely strong and can strip if overtightened.
My first choice is copper coated steel locking flange nuts which we include in our premium kits with the one piece OEM manifold gaskets.
Rob

Hi Rob,

I am planning to go with brass nuts. Should I be using lock washers on the manifold and the bolt-together sections of the (UK stainless) exhaust?

Thanks in advance!

andy

[PJ Grady Inc.]

Hey Rob, how much is the premium kit?

We have three different kits but the best one uses Volvo OEM one piece mnfd gaskets, hardened stainless manifold studs and coppercoated M7 locking flange nuts with stainless washers. Part #112259VS $169.95. It's the most expensive kit but it's by far the best one available. I prefer only using this one in our shop as you don't want a comeback on exhaust work.
Rob Grady

[PJ Grady Inc.]

Brass is too soft to use with steel lockwashers (I don't think brass lockwashers exist because of the material's properties) so you'd have to run brass or stainless flatwashers. I would recommend you use our locking flange nuts instead if you're worried about the brass ones backing off. Another option is you could double up on the brass nuts to lock them in place if your studs are long enough.
Rob

Hi Rob,

I am planning to go with brass nuts. Should I be using lock washers on the manifold and the bolt-together sections of the (UK stainless) exhaust?

Thanks in advance!

andy

[Farrar]

What about anodized stainless nuts on stainless studs? Would that help prevent heat-induced corrosion-welding?