What is the likely type of stainless of a roll / grab bar under a dinette?

Parma

Super Anarchist
2,989
396
here
Lots of corrosion in / on the screws for the roll / grab bar base under the dinette. What is the most likely type of SS tubing for that roll / grab bar so I can get the most appropriate replacement screws so as to minimize corrosion? After 15 years the heads of the current screws began to pop off so I'm replacing all of them. Or is there some other preferred  method of attachment?

 

Zonker

Super Anarchist
9,641
5,607
Canada
Use 316 for the new screws. 304 is only moderately corrosion resistant. "18-8" is also 304. 304 is typical of a lot of off the shelf fasteners cause it's cheaper. 

 

Parma

Super Anarchist
2,989
396
here
Thank you. That's what I was leaning towards and it's really nice to have some validation

 

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