The 6301 lock body is specified for doors 1-3/4 inches and over, so it covers standard 1-3/4 inch doors as well as the thicker slabs common on higher-end entry doors. It will not suit a thinner 1-3/8 inch interior door.

Handing is part of the order. The 6301 lock body is supplied left hand, so on a right hand opening this is not the part to order. Stand outside the door: if the hinges are on your left, it is a left hand or left hand reverse door. Get that wrong and the latch bevel faces the wrong way.

It uses an ASA strike, the standard 1-1/4 x 4-7/8 inch mortise strike prep. If the frame already has an ASA cutout from a previous mortise lock, the strike side lines up. The door edge is the part to check: the latch faceplate measures 1-1/4 x 8 inches, so the existing faceplate mortise has to match that footprint.

Yes. The 6301 entrance and apartment lock body takes single or double cylinder applications, so you can key the outside only, or key both sides where a glass panel door or an egress policy calls for a keyed inside cylinder. Check local egress code before double keying a dwelling unit door.

This is the 6301 mortise lock body only. Levers or knobs, roses or escutcheons, and cylinders are separate. Note that Baldwin's own feature list for the 6301 describes it as knob by knob, so confirm the trim you pair with it drives the same spindle arrangement before you order the handles.

Only if the existing pocket is a 2-1/2 inch backset with a 1-1/4 x 8 inch faceplate and an ASA strike in the frame. Those three dimensions decide it. Older ornamental iron and thin-door mortise locks are cut differently, for instance the Marks USA 21AC and 22AC bodies are for 1 inch doors, so pull the old lock and measure from the door face to the center of the knob hub before ordering.

The Baldwin 6301 mortise lock body is a 2-1/2 inch backset part, which sets how far the cylinder and lever centerline sit from the door edge. If the existing mortise pocket is cut for 2-3/4 inch, the Hager 3800 Series bodies are built on that backset: the 3810S passage with rose, the 3810E passage with escutcheon, the 3840S privacy, and the 3850E office lock with lever and escutcheon. The Sargent 4874 double cylinder mortise deadbolt also uses a 2-3/4 inch backset. Backset is not adjustable on a mortise body, so measure from the door edge to the cylinder center before ordering either way.

The Baldwin 6301 is an entry function body for entrance and apartment openings, so it is not the right part when the opening calls for a different keyed function. For storeroom, the Accentra 8805FL is a Grade 1 storeroom mortise lock with the Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset offered with an interchangeable core option. For classroom, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series, and the Cal-Royal NM8070 is a Grade 1 classroom mortise lockset with an auxiliary deadlatch. Function is fixed in the lock case, so it is chosen at order, not changed in the field.

The Baldwin 6301 is an entrance/apartment mortise lock body built on a 2-1/2 inch backset and catalogued for residential use. Where an apartment entrance needs a commercial-duty keyed body instead, the Cal-Royal NM8050 is a Grade 1 entrance/office mortise lockset with an auxiliary deadlatch for 1-3/4 inch doors. The Baldwin carries a 1-1/4 inch x 8 inch latch faceplate and an ASA strike, so the door prep differs from the Cal-Royal; verify the existing mortise pocket and faceplate cutout before swapping between them.

No. The Baldwin 6301 is a keyed entry mortise lock body for entrance and apartment doors, sold in left hand with finishes including 003 Polished Brass PVD, 102 Oil Rubbed Bronze and 190 Satin Black. The Emtek mortise entrance locksets that look adjacent to it are dummy function parts: the 3019 Brisbane, the 3102 Memphis, the 3104 Hamilton and the 3106 Manhattan are all dummy. A dummy set has no latch and no cylinder, so it will not secure an apartment entrance. Use the Emtek dummy only on the inactive leaf of a pair or on a door that does not latch.

The Baldwin 6301 is an Estate Series entrance and apartment mortise body designated residential. Where a facility standard calls for Grade 1 heavy duty across the openings, the comparable Grade 1 mortise bodies include the Sargent 7925 dormitory exit function lock with rose trim and single cylinder deadbolt, the Marks USA LA318GJ classroom security indicator lockset with ANSI strike for 1-3/4 inch doors, the Cal-Royal NM8050 entrance/office, and the TownSteel MRX-L-01 heavy duty anti-ligature lever passage lockset. Match the function to the opening first, then the grade.

No, not on a standard residential entrance door. The Baldwin 6301 mortise body is specified for doors 1-3/4 inches and over. The Marks USA 21AC and 22AC entrance double cylinder ornamental iron mortise locks are built for 1 inch doors, which is the narrow stile of an ornamental iron gate or screen door, not a wood or steel entrance slab. Both are double cylinder entrance locks with a round knob, so the function reads similar, but the door thickness rules them out as a swap.

No. The 6301 is a mechanical, key-operated entrance lock with no electrified or credential option. For a mortise body with electronic access, the Schlage CO-100 is a standalone keypad mortise lock, the Dormakaba E-Plex 2066 is electronic pushbutton keyless, and the BEST 45HW is a wired electromechanical mortise lock running 12V or 24V.

No, the 6301 is an entrance and apartment function, keyed from the outside. For an interior bed or bath door you need a privacy body instead, such as the Hager 3840S Grade 1 privacy mortise lock or the Cal-Royal NM8440 privacy mortise lockset with deadbolt. Keep the 6301 for the unit entry doors and spec privacy separately.

Plan the pocket off the two dimensions given: the case reaches back 2-1/2 inches from the face of the door to the knob hub centerline, and the faceplate mortise in the door edge is 1-1/4 x 8 inches. On a 1-3/4 inch door that leaves thin stiles tight, so measure the stile before routing. Stick-built doors with narrow stiles may not take it at all.

The Baldwin 6301 is a mechanical entry mortise body for single and double cylinder applications, so access is by key only. For electronic access in the same mortise prep, the Schlage Electronics LEBMB-ADD is a mobile-enabled mortise lock with push button and LED covering privacy, office and apartment functions, Grade 2, with a 3 hour fire rating for 1-3/4 inch doors. The Dormakaba E-Plex E5086 is a Grade 1 entry/egress electronic pushbutton and card mortise lock in a back to back configuration. The Accentra NTM623-NR nexTouch Generation 3 mortise lock uses a capacitive touchscreen keypad with cylinder override and no deadbolt. Electronic bodies need their own door prep and, in several cases, power, so confirm the prep before committing.

The Baldwin 6301 is a keyed entry mortise body for entrance and apartment doors. On an interior opening that only needs the door to latch, the Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, and the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating. For a bed or bath door, the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt for 1-3/4 inch doors. None of these accept a key, so they do not replace the 6301 on a secured entrance.

The Baldwin 6301 mortise lock body is ordered by hand, with left hand offered across the 003 Polished Brass PVD, 102 Oil Rubbed Bronze and 190 Satin Black finishes. If the hand of the opening is not confirmed at order time, the BEST 45HCA public entrance mortise lock body and the Falcon MA101 mortise passage lock are both field reversible, and the Kaba Ilco 185 Series mortise deadbolts are supplied with no handing. Those are different functions, so reversibility alone does not make them a drop-in for an apartment entrance.

The Baldwin 6301 mortise lock body calls for a door 1-3/4 inches and over. For a thinner slab, the Alarm Lock Trilogy electronic mortise locks cover 1-5/8 inch to 1-7/8 inch doors, including the DL2700CR classroom, the DL3500CR classroom with 300 user codes, and the DL4500 electronic mortise deadbolt with privacy keypad, all Grade 1. At the far thin end, the Marks USA 21AC and 22AC ornamental iron mortise locks are for 1 inch doors. Measure the slab at the lock edge, since a 1-5/8 inch door will not carry the 6301 body.

The Baldwin 6301 is a complete entry mortise lock body with a latch, carrying a 1-1/4 inch x 8 inch faceplate and an ASA strike. If the opening already latches and only needs a keyed bolt, the Sargent 4874 is a double cylinder mortise deadbolt on a 2-3/4 inch backset, and the Kaba Ilco 185 Series mortise deadbolts ship with no handing in a single pack. A deadbolt-only case does not hold the door closed, so it is a supplement to a latching lock, not a replacement for the 6301.

Three: 003 Polished Brass PVD, 102 Oil Rubbed Bronze, and 190 Satin Black. The PVD polished brass is the one to pick if you are matching other PVD hardware in a building and want the brass to hold its color; oil rubbed bronze is a living finish that will change with handling.