Dexter DB2000 Series Drive-in Bolt Kit Deadbolt

It's the replacement bolt assembly for a Dexter DB2000 Series deadbolt, not a complete lock. The drive-in style has no faceplate to mortise, so the bolt body taps straight into a round bored edge hole. You'd order this when the deadbolt cylinder and turn are fine but the bolt itself is worn, damaged, or the wrong style for the door prep you have.

Not without rework. A drive-in bolt seats in a plain round edge bore; a door already routed for a rectangular faceplate leaves that mortise pocket exposed and nothing for the drive-in collar to grip properly. Going the other direction is easier, since a drive-in prep can be mortised for a faceplate bolt. If the doors in your building are mixed, check the edge prep before you order.

Yes. It's a Grade 2 commercial deadbolt part. Grade 2 is the mid-tier ANSI/BHMA level, which is what most multi-family entry doors, light commercial tenant spaces, and apartment units are specified at. If your job is written for Grade 1 hardware, this bolt won't satisfy the spec.

No. It's the bolt assembly for a keyed DB2000 deadbolt, so the cylinder, keys, and thumbturn stay with the lock you already have. If your existing DB2000 is keyed and working, the bolt swap doesn't change your keying at all. If you need a new keyed deadbolt outright, order the complete lock instead of this kit.

For repairs, yes, and that's the usual use: keeping a stock of DB2000 bolt kits means a maintenance tech replaces a seized or damaged bolt in minutes without pulling the whole deadbolt or rekeying anything. It's Grade 2 commercial hardware, which is the level most multi-family entry doors are specified at. Stock both finishes only if your doors are mixed; otherwise pick the one that matches your existing trim.