Schlage PC172 Grade 1 Double Dummy Cylindrical Lock, Non-Keyed with Rose

No latch at all. The PC172 is a double dummy: levers only on both sides, fixed trim with no latchbolt and no chassis mechanism. It's pull hardware on both faces, used on the inactive leaf of a pair, on closet and cabinet doors, or anywhere you want the lever look without an operating lock. If you need a lever that retracts a latch but doesn't lock, that's a passage function instead, not this.

Yes, 1-3/4 inches is the stated door thickness for the PC172, which is the standard commercial door thickness. The PC Series more broadly is built to cover 1-3/8 to 1-3/4 inch doors with a no-adjustment chassis, and the series installs to the common cylindrical ANSI 161 prep with a 2-3/4 inch backset.

No handing to specify. The PC172 is non-handed and field reversible, so one part number covers left and right hand openings. For a pair of doors you order one PC172 per leaf you're trimming out, regardless of swing.

That's what the PC Series is built for. The levers and roses suite with Schlage PM Series, PT Series and ALX Series Grade 2 cylindrical locks, and all PC Series levers suite with Von Duprin exit devices, so a dummy leaf can match the locked openings and the exit-device doors down the same corridor. Eight lever styles (Athens, Boardwalk, Broadway, Latitude, Longitude, Rhodes, Sparta, Tubular) in six finishes: 613 Oil Rubbed Bronze, 619 Satin Nickel, 622 Matte Black, 625 Bright Chrome, 626 Satin Chrome, 643E Aged Bronze.

If the door has a latch that has to hold it closed, a dummy won't do it. The PC172 has no latchbolt at all, so the door needs a ball catch, a roller catch, or flush bolts to stay shut. Where you want the lever to actually retract a latch without locking, order the PC Series passage function instead. Grade 1 passage alternatives from other brands include the Falcon MA101 heavy duty mortise passage lock, the Hager 3810S with rose and 2-3/4 inch backset, and the TownSteel MRX-L-01.

The Schlage PC172 is a non-keyed double dummy with levers on both sides and a latchbolt retracted by the lever from either side. On the Emtek side, the 3102 Memphis, 3104 Hamilton, 3106 Manhattan, and 3019 Brisbane are all mortise entrance locksets in dummy function, each tied to its own trim series rather than a lever-selection range. The PC172 carries a Grade 1 certification and offers eight lever styles from Athens through Tubular; the Emtek dummy sets are specified by the named series instead.

A double dummy like the PC172 is trim only in the sense that it gives you levers on both sides with no keyed cylinder. If the opening needs a working latch with free operation from both sides, the Falcon MA101 is a Grade 1 heavy duty mortise passage lock with field reversible operation and a fire rating, and the Hager 3810S is a Grade 1 passage mortise lock with rose and a 2-3/4 inch backset, which is the same backset the PC172 uses. The Hager 3810E is the same passage function with escutcheon trim instead of a rose.

The PC172 covers the inactive leaf with levers on both sides and no key. For the active leaf, keyed Grade 1 mortise options include the Accentra 8805FL storeroom lock with Arcadia lever, the Cal-Royal NM8080 storeroom lockset with an interchangeable core option, the Cal-Royal NM8050 office/entrance lockset with auxiliary deadlatch, and the Corbin Russwin ML2003 classroom lockset. The Cal-Royal sets and the ML2003 list a 1-3/4 inch door thickness, matching the thickness the PC172 is specified for.

No. Both are dummy function, but they solve different problems. The Falcon MESC600DT is a dummy escutcheon lever trim made for M9900 Series exit devices, so it mounts to an exit device rather than to a lock chassis. The Schlage PC172 is a standalone non-keyed double dummy with a 2-3/4 inch backset and a 10-072 1-1/4 inch by 4-7/8 inch square corner ANSI strike as its standard strike, installed as its own set of levers on the door. If the door already carries an M9900 exit device, the MESC600DT is the trim that goes with it; if there is no exit device, the PC172 is the double dummy set.

The PC172 uses a standard straight or shaped lever on both faces in six finishes, which is a conventional commercial lever rather than a ligature resistant design. For anti-ligature openings, the TownSteel MRX-L-01 is a Grade 1 heavy duty stainless steel anti-ligature lever mortise lockset in passage function at 1-3/4 inch, the MRX-A-01 is the same passage function with satin stainless ligature resistant arch trim, and the Marks USA 5PDN is a Grade 1 hospital passage mortise push/pull paddleset that is ligature resistant and ADA compliant in satin stainless steel.

They prep differently. The Baldwin 6301 entry/apartment and 6310 entry/storeroom mortise lock bodies are 2-1/2 inch backset, available knob by knob or lever by lever, while the Schlage PC172 is a 2-3/4 inch backset. The Baldwin 6301 lists a 1-3/4 inch and over door thickness and the 6310 lists 1-3/8 inch and over; the PC172 is specified at 1-3/4 inch and is field reversible for hand. If the door is already mortised at 2-1/2 inch for a Baldwin body, the PC172 is not a drop-in.

The PC Series is fire rated and UL listed for 3-hour fire doors, and certified to ANSI/BHMA Grade 1 operational and security standards. On a labeled pair, the dummy trim typically goes on the inactive leaf where the fire bolts or flush bolts do the latching, so the PC172 itself adds no latching duty.

No strike and no frame prep. Dummy trim mounts to the door face only, so the frame stays untouched. The operating functions in the PC Series do use a strike, the 10-072 square corner box strike at 1-1/4 by 4-7/8 inches with a 1-3/16 inch lip, if you're prepping an adjacent door in the same run. On the dummy leaf you only need the door-face mounting.

Count the sides. The PC172 double dummy gives you a lever on both faces of the door. The single dummy version puts a lever on one face only, which is what you want on the inactive leaf of a pair where the back side is a closet or a service space nobody pulls from. Both are non-keyed, non-handed, and take the same lever styles and finishes.

The PC172 installs to the cylindrical ANSI 161 prep, so it won't drop into an existing mortise pocket. For a mortise-prepped door needing dummy trim, the Emtek mortise dummy locksets are the alternative: the 3019 Brisbane, 3102 Memphis, 3104 Hamilton and 3106 Manhattan are all dummy-function mortise entrance sets. For exit-device openings, the Falcon MESC600DT is a dummy escutcheon lever trim for M9900 Series devices, and it's fire rated.

No cylinder, ever. The PC172 is non-keyed with no cylinder provision, and it's a mechanical part with no electronic option. If the opening may need keying down the road, order a keyed PC Series function now (Entrance, Entrance/Office, Storeroom, or Classroom Lock Exterior Lockdown) in the same lever and finish, so the aesthetic stays consistent across the building.

No. The Sargent 130KB is a standard duty mortise thumbturn in the 8200 Series, and the Sargent 130W is a mortise thumbturn with a round backplate in the 7800 Series - those are single trim pieces that turn a mortise lock's bolt. The Schlage PC172 is a lever set on both faces of the door, non-keyed, with the latchbolt retracted by the lever from either side at all times. A thumbturn is what you add to a keyed mortise body for inside control; the PC172 is what you put on a leaf that needs matching levers and no locking at all.

The PC172 is a mechanical, non-electronic lock, so it cannot carry codes or credentials. For keypad and credential openings, the Alarm Lock DL3500CR is a Grade 1 Trilogy electronic mortise lock with 300 user codes in classroom function, the TownSteel FME-2000 is a Grade 1 heavy duty classroom mortise lockset with RFID at 1-3/4 inch door thickness, and the Schlage Electronics CO-100 is a Grade 1 heavy duty standalone electronic mortise lock in privacy function with a keypad reader, also listed at 1-3/4 inch. The Accentra NTM623-NR nexTouch Generation 3 uses a capacitive touchscreen keypad with cylinder override and no deadbolt.

The PC172 has no locking at all - the latchbolt pulls back from either side at all times - so it cannot serve a privacy opening. The Cal-Royal NM8440 is a Grade 1 heavy duty privacy mortise lockset with deadbolt at 1-3/4 inch door thickness, and the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset, the same backset dimension the PC172 uses. Both are keyed-function alternatives sized for the same commercial doors the PC172 is built for.

Check the thickness before you order. The Schlage PC172 is specified at 1-3/4 inch door thickness. The Alarm Lock DL2700CR and DL3500CR Trilogy locks both list a 1-5/8 inch to 1-7/8 inch door thickness range, and the DL4500 electronic mortise deadbolt lists the same 1-5/8 inch to 1-7/8 inch range. The Hager 3810S passage lock covers 1-3/4 inch to 2-1/2 inch. For a door thicker than 1-3/4 inch, the Hager and Alarm Lock ranges are the ones that reach it.

The PC172 is set up for a 1-3/4 inch commercial door with a 2-3/4 inch backset and an ANSI strike, which is not the prep on a glass or narrow iron door. The Kaba Ilco BR Series is a glass door bottom rail lock. For thin ornamental iron stiles, the Marks USA 21AC entrance double cylinder Unilock and the 22AC entrance double cylinder ornamental iron mortise lock both list a 1 inch door thickness with a round knob.

The PC172 is a lever set with a latchbolt and no deadbolt. For deadbolt-only openings, the Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset, which matches the backset dimension the PC172 uses, and the Kaba Ilco 185 Series is a no-handing mortise deadbolt sold in a single pack. The Alarm Lock DL4500 is a Grade 1 electronic mortise deadbolt with 2,000 user codes and a privacy keypad if the deadbolt needs to be code-operated.

The PC172 is a Grade 1 commercial lock with an F01 ANSI/BHMA function designation, 2-3/4 inch backset, and a 10-072 1-1/4 inch by 4-7/8 inch square corner ANSI strike, field reversible for hand. Peer Grade 1 mortise sets that hold the same grade include the Accentra 8805FL in storeroom function, the Corbin Russwin ML2003 in classroom, the Cal-Royal NM8050 in entrance/office and NM8070 in classroom, and the Falcon MA101 in passage with field reversible operation. That gives you a Grade 1 dummy leaf from Schlage and Grade 1 keyed and passage functions from the peer lines across the rest of the openings.

They are different pieces of the assembly. The BEST 45HCAC is a heavy duty mortise lock body in public entrance function with field reversible operation, and the 45HCAINL is a heavy duty mortise lockbody in intruder function - lock bodies that take separate trim. The Schlage PC172 ships as a complete non-keyed double dummy with the rose and lever selected together, in six finishes and eight lever styles, and is field reversible. If the specification calls for a lockbody to pair with existing BEST trim, the 45H bodies are the item; the PC172 is not a lockbody sold apart from its trim.

The PC172 is a Grade 1 mechanical, non-electronic double dummy at 1-3/4 inch door thickness. The Schlage Electronics LEBMB-ADD is a Grade 2 mobile-enabled mortise lock with push button and LED covering privacy, office, and apartment functions, rated 3 hours for fire and listed at 1-3/4 inch. The LEMD-GRW is a Grade 1 ENGAGE Series wireless mortise lock with a 125kHz proximity reader and mobile-enabled deadbolt with LED on Greenwich trim, right hand, also 3 hour fire rated. The PC172 is the mechanical dummy leaf; the LE and ENGAGE units are the credentialed openings.

It's specified for exactly that. The PC Series is a commercial-duty Grade 1 line built for commercial real estate, retail, multifamily and hospitality. The levers are solid zinc and the rose is snap-on wrought brass with no exposed screws, which matters on a dummy leaf that gets pulled on all day. Rose diameter is 3-11/25 inches.