Handing matters on this one. The 6315003L is the left hand version of the Baldwin 6315 bed/bath mortise lock body, supplied in 003 Polished Brass PVD. If your door is right hand, a left hand body is the wrong part. Stand outside the door: if the hinges are on your left and the door swings away from you, it is left hand.

The latch faceplate measures 1-1/4 x 8 inches, so the door edge has to be routed for that plate along with the pocket for the body. On the frame side it takes an ASA strike, which is the standard full-lip mortise strike prep.

It has a 1 inch throw deadbolt with saw-proof inserts alongside the latch, thrown by the interior turn. That is more security than a typical privacy bore lock, but the function is still privacy, meaning it locks from inside the room only, with emergency release from the outside.

This is the mortise lock body only. Knobs or levers, roses or escutcheons, and the interior turn piece are separate Estate Series trim items, so you specify the trim to match the rest of the doors. The body is built for knob x knob or lever x lever trim.

The Baldwin 6315 is a residential Estate Series privacy mortise lock body with a 2-1/2 inch backset. For commercial privacy openings, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors, and the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset for 1-3/4 inch to 2 inch doors. Both use a wider backset than the Baldwin, so the door prep differs.

The 6315 is the bed/bath privacy function within Baldwin's Estate Series mortise line, so it shares the same 2-1/2 inch backset and Estate trim so bedrooms and baths look identical to the passage and entry doors nearby. You order the function per door and the same trim across all of them.

The Baldwin 6315 is a bed/bath privacy function lock. For a hall or closet door that only needs to latch, a passage mortise lock is the right call: the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation, and the Hager 3810S is a passage mortise lock with rose and a 2-3/4 inch backset. None of these provide the interior locking or the 1 inch throw deadbolt the 6315 carries.

They share the privacy function but little else. The Baldwin 6315 is a mechanical residential lock body with a 2-1/2 inch backset and an ASA strike. The Schlage CO-100-MS-40-KP is a standalone electronic mortise lock with a keypad reader, Grade 1, heavy duty, for 1-3/4 inch doors. Choose the CO-100 only where code-based access and an electronic credential are wanted; the 6315 is a purely mechanical bed/bath lock.

No. The Emtek 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan are dummy function mortise entrance locksets, meaning the trim is fixed and there is no latch or locking action. The Baldwin 6315 is a working privacy lock body with a 1 inch throw deadbolt. Dummy trim suits an inactive leaf of a pair, not a bathroom or bedroom door.

The Baldwin 6315 privacy lock is meant to be locked only from inside the room. For dormitory and apartment openings, the Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock with rose trim and a single cylinder deadbolt, and the Schlage LEBMB-ADD is a Grade 2 mobile-enabled mortise lock covering privacy, office and apartment functions with a 3 hour fire rating for 1-3/4 inch doors.

The Baldwin 6315 body is bored for a 2-1/2 inch backset. The Hager 3840S privacy mortise lock uses a 2-3/4 inch backset, as do the Hager 3810E, 3810S and 3850E in the same 3800 Series. Backset is not adjustable, so confirm the existing pocket before cross-shopping between the two dimensions.

The Baldwin 6315 is a residential Estate Series lock and is not built for ligature resistance. For patient rooms, the TownSteel MRX-L-01 is a Grade 1 heavy duty anti-ligature lever mortise lockset in passage function and the MRX-A-01 is the arch trim version, both for 1-3/4 inch doors; the Marks USA 5PDN is a Grade 1 ligature resistant, ADA compliant hospital passage push/pull paddleset. All three are passage rather than privacy function.

If you want code access rather than a mechanical thumbturn, the Schlage CO-100 standalone electronic mortise lock is offered in a privacy function with a keypad reader, Grade 1, for 1-3/4 inch doors. Bear in mind it is a commercial-style unit, not a match for Baldwin Estate Series residential trim.