Stop in for a cup of coffee

Aftermarket garbage parts strike again!
Putting wiper motor/pump into this chevelle and it washed for a couple tests now nothing. Junk. Piss me off.
To top it off, mounting screws missing. Asked owner, nope never touched it. His son was screwing around with it and screws are not with the car. Its got some newer ones in it now, however they are metric.