All-purpose Striker Plate, Not!
Builders should realize that a lockset–doorknob and striker–requires a metal striker plate in the door jam so when the striker hits the curved front edge of the plate it retracts into doorknob mechanism and then springs into the hole in the plate when someone closes a door.
The curved edge serves a purpose: It easily moves the striker and prevents marks on the door jam. In this house, though, the builders installed the same type of striker plate for the locksets and for the deadbolts. Deadbolts don’t need a plate with a curved edge because they click into place only after someone closes a door. Why the builders installed the same type of plate for locksets and deadbolts is beyond me. Maybe they had a lot of them and lost all the deadbolt plates. They must have lost some of the plate screws, too, because in places they used drywall screws.
A very professional job all the way around. I mean really.