Using this set of brackets, our team found that they were incredibly sturdy and dependable. We were able to quickly and securely mount a heavy piece of machinery in our factory using only a few of these brackets. The zinc-plated finish was a nice touch that gave the brackets a professional look. The only downside we experienced was that the screws provided were a bit difficult to work with. Overall, we highly recommend these brackets for any heavy-duty industrial and scientific applications.