John Doe wrote:
Christopher Tidy wrote:


So you are attempting to drive a machine screw into an untapped
hole?


I was asking for specific locations to buy stronger/better screws,
but the information about grades and stuff is probably at least as
useful.

That's not the answer to the question I asked above. Please read it
again. If you answer the question I asked, it will make it much easier
for everyone to help you, and will make the answers we give more
relevant to your problem.

We're not here to criticise you unfairly; we're just trying to
understand the problem better.

Best wishes,

Chris