were can I buy copper or brass center post screws for rda?

[Tplante03]

Looked and called every screw and hardware store. I need the following sizes
M2.5×.45 6long copper or brass for positive center post
The folowing can be copper,brass or ss
M2 ×.45
M3×.5
M2.5×.45

Thank you

 

[Katmar]

Bump for answer

 

[distortoblotto]

McMaster-Carr is your friend if you are willing to buy quantity.....

 

[p7willm]

Why do you want them?

There are health concerns over inhaling copper and lead is often used as part of brass, along with the copper.

Also, the oxidation products of copper and brass are worse conductors than the oxidation products of stainless steel so, unless you clean regularly, daily, the stainless will be a better conductor.

 

[Tplante03]

Why do you want them?

There are health concerns over inhaling copper and lead is often used as part of brass, along with the copper.

Also, the oxidation products of copper and brass are worse conductors than the oxidation products of stainless steel so, unless you clean regularly, daily, the stainless will be a better conductor.

I need to replace the copper screw on one of my rdas cause it got striped some how. What material should I use inside the rda to clamp the wire if the ones I mentioned are no good?