Make sure to check you put the screwheads on the *inside* of the house. I've played around with the doorhandle at my parent's and found it held the thing together much better that way. If you want any Tom, **** or Harry with a screwdriver to be able to take off the lock. So I had to put it all back and the damn handle is still wobbly. I hate those screws with a socket to hit on the other side with a passion. Never get the holes lined up.

And yes, it's always a good thing to watch the youtube vids first. That's how I turned a "omg how can this outdoor faucet be leaking" into a 5 minutes cleanout job.