Very cheap screws and threads - Leapers UTG MP5 Bidirectional Low Profile Clamp Mount

I was not expecting much from this and just hoping I could get by with using it carefully and infrequently. Before I even had the chance to test it, one of the screws snapped in half from tightening it down when mounting the mount to the receiver. The lower half of the broken screw is so stuck in the claw part of the mount that I can not even remove it with vice grip pliers, so I cannot fix it with a new replacement screw. Of course this occurred after the return window so I am writing off the whole purchase as worthless.