Stainless Fixings

[MCBladeRun]

I have a 1972 240z that will be dismantled at some point as I've bought the stainless steel bolt kit for the entire car (except suspension).

I am taking this to another level, and will be measuring each bolt / nut / washer for replacement of 1/2 the kit.

The reason is a bit complicated but, the short of it is: Similar stainless items can friction weld together (which is why you coat the thread in anti-lock grease etc).
If you have dissimilar stainless items, they won't friction weld together.
This happens upon tightening the nut / bolt together.

Afterwards I'll have the stainless steel bolt kit installed on the car, and a 2nd stainless bolt kit for me to sell on.

 

[Mr Tenno]

I have a 1972 240z that will be dismantled at some point as I've bought the stainless steel bolt kit for the entire car (except suspension).

I have the same kit and reading up on galvanic corrosion put me off!

 

[MCBladeRun]

I have the same kit and reading up on galvanic corrosion put me off!

Ah, I was hoping I could avoid by introducing my own earthing system when I change the loom. But I think it would be unavoidable in certain scenarios.

 

[Pete]

I have a 1972 240z that will be dismantled at some point as I've bought the stainless steel bolt kit for the entire car (except suspension).

I am taking this to another level, and will be measuring each bolt / nut / washer for replacement of 1/2 the kit.

The reason is a bit complicated but, the short of it is: Similar stainless items can friction weld together (which is why you coat the thread in anti-lock grease etc).
If you have dissimilar stainless items, they won't friction weld together.
This happens upon tightening the nut / bolt together.

Afterwards I'll have the stainless steel bolt kit installed on the car, and a 2nd stainless bolt kit for me to sell on.

Are you using a mix of A2 and A4 stainless?

 

[MCBladeRun]

Are you using a mix of A2 and A4 stainless?

Not made my mind up entirely. Thought about the need to research it properly first. I think the bolt kit is most likely A2

 

[toopy]

Surely for cars stored indoors and rarely driven in the wet, the chances of galvanic corrosion causing bolts/nuts to corrode to the point they are likely to seize, is pretty remote i would of thought.

Whenever i use a bolt somewhere, wether its an original or a replacement in A2 or whatever, i always lightly grease the threads, copper slip if its a high heat area, water proof for anywhere else. Not so much to lubricate the threads but mainly as an extra precaution because of the galvanic issue, i certainly wouldn't disregard the benefits of using stainless steel on the slim chance it will seize.

 

[Mr Tenno]

Surely for cars stored indoors and rarely driven in the wet, the chances of galvanic corrosion causing bolts/nuts to corrode to the point they are likely to seize, is pretty remote i would of thought.

I wasn't worried about them seizing, more that if any rust is going to occur I want it to be the £2 bolt, not the hard-to-replace panel.