303 stainless screw in SOS-832

[chopper75]

I'm using a custom screw made of 303 stainless and screwing into a threaded insert made of "300 Series Stainless". Would this be a concern for gauling? if so, what would you guys recommend to compatible material?

Thanks

 

[EdStainless]

Often inserts are made from harder material, such as 17-4PH. Similar corrosion resistance but more strength.
The greater difference will help minimize galling.
What are you using for an anti-seize?

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P.E. Metallurgy

 

[chopper75]

Not using any anti-seize at all. Just dry. The threaded connection is within an electronics enclosure and I'm not sure if I can have any fluid in that area.

 

[EdStainless]

There are some dry non-conductive formulas that can be sprayed on. They are all based on PTFE or some similar plastic "dust" with a little binder.
Contact your favorite supplier.
I should ask, are the screws rolled or cut? Since 303 I am guessing cut, which is much riskier for seizing.

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P.E. Metallurgy