5/16" steel balls, 316 Stainless Steel, grade 25 unhardened required.

Can anybody advise me as to where I can source these exact balls that I require?

Or, if you are a supplier, please message me, or post here your response with contact information / website etc.

If drilling and tapping can also be done to these then I would possibly use that service in the supply of the balls, with a drawing I could supply to do that.

*Quality is of the highest importance of these balls as they will be used in a high pressure situation as a valve seat. They will need to be fully round, and free of any microscopic pitting and defects.*

I look forward to your many responses and suggestions. ■