Dexter C2000 Series - Grade 2 Entry/Office Cylindrical Ball Knob Lock, Non-Clutching, Keyed

Both. The C2000 Series cylindrical knob lock covers a 1-3/8 inch to 1-3/4 inch door thickness range as standard, so it goes on a modern 1-3/4 inch commercial door or an older 1-3/8 inch interior door without any thickness kit. It is a non-handed lock, so you don't specify left or right hand when you order.

Entrance/Office is ANSI/BHMA F109. In practice: the outside knob is locked or unlocked by a button or turn on the inside, and the key retracts the latch from outside. The inside knob always turns free for egress. That is the office door, tenant unit door, or back-of-house door where staff want to leave it unlocked during the day and secure it on the way out. If you want a door that stays locked outside at all times and cannot be left unlocked by a button, you want a storeroom function instead, like the Sargent 6G04 Grade 2 storeroom knob lock.

Depends which strike you have. The C2000 comes with the C2000-ACLS, an ANSI 1-1/4 inch x 4-7/8 inch curved lip strike, which is the full ANSI frame prep most commercial hollow metal frames are cut for. The latch face is 1 inch x 2-1/4 inch. If your frame has the smaller T-strike prep (ANSI 1-1/4 inch x 2-1/4 inch), that is the strike supplied with the 605 bright brass ball knob configuration. Match the strike cutout in the frame to the strike you order, or you will be filing the jamb.

Yes. The conventional cylinder option (KDC) is a 6-pin Schlage C cylinder, supplied keyed different, so a locksmith can pin it into an existing Schlage C system. If your building runs small format interchangeable core instead, order the SFIC prep less core version and drop your own 6-pin or 7-pin core in. That is the version to buy for a property where maintenance rekeys by swapping cores rather than pulling cylinders apart.

The C2000 Series is UL listed 3 hour, so it can go on a fire door assembly rated up to 3 hours. It is a Grade 2 lock, which is the standard commercial duty tier below Grade 1 heavy duty. For a high traffic opening where Grade 1 is specified on the drawings, look at a heavy duty option like the BEST 8K Series entrance function Grade 1 knob lock instead.

The Dexter C2000 entrance/office knob lock is a Grade 2 cylindrical lock. For the same entrance function in a Grade 1 heavy duty knob, the BEST 8K Series entrance function single cylinder knob lock is Grade 1 heavy duty, and the Corbin Russwin CK4851 global knob entrance/office lock with conventional cylinder is Grade 1 with a 1-3/8 inch to 2 inch door thickness range against the C2000 range of 1-3/8 inch to 1-3/4 inch. All three are keyed single cylinder entrance openings; the difference is the ANSI grade and, for the CK4851, the thicker door capability.

The Dexter C2000 knob lock covered here is entrance/office function, which lets the outside knob be locked and unlocked by the inside pushbutton. A storeroom opening, where the outside knob is always locked and a key is always required, calls for a different function: the Sargent 6G04 is a Grade 2 storeroom/closet knob lock with a single cylinder, and the Sargent 8XG04 is a Grade 1 heavy duty storeroom/closet single cylinder knob lock with a 2-3/4 inch backset matching the C2000 standard backset.

Non-keyed passage knobs in the same Grade 2 cylindrical class as the Dexter C2000 entrance lock include the Corbin Russwin CK4410 Grade 2 global knob passage/closet lock rated for 1-3/8 inch to 1-3/4 inch doors, the Falcon W101 Grade 2 passage/closet knob lock with a 2-3/4 inch backset, and the Arrow RK01 Grade 2 ball knob passage lock, also 1-3/8 inch to 1-3/4 inch. The Arrow RK01 carries a ball knob like the C2000. For a Grade 1 passage knob instead, the Schlage D10S orbit knob passage latch is Grade 1 heavy duty.

They are both keyed entry knobs but they are not the same class of lock. The Dexter C2000 entrance/office knob lock is Grade 2 and commercial, with a 2-3/4 inch backset standard and an ANSI 1-1/4 inch by 4-7/8 inch curved lip strike. The Kwikset 400P-CP Polo keyed entry knob is Grade 3 with a round corner adjustable latch and a round corner strike, for doors 1-3/8 inch to 1-3/4 inch. If the door is prepped for an ANSI strike, the C2000 drops in and the Polo does not without changing the strike prep.

The Dexter C2000 knob lock is built for doors 1-3/8 inch to 1-3/4 inch. For a 2 inch door, the Corbin Russwin CK4851 Grade 1 entrance/office global knob lock with a conventional cylinder covers 1-3/8 inch to 2 inch, and the Corbin Russwin CK4310 Grade 1 passage/closet global knob covers the same 1-3/8 inch to 2 inch range if the opening does not need a key. The Falcon X101 Grade 1 passage knobset with interchangeable core goes to 2-1/4 inch.

Three finishes: 605 bright brass, 613 oil-rubbed bronze, and 630 satin stainless steel. All three are available with either the conventional Schlage C cylinder or the SFIC prep. 630 satin stainless is the usual commercial standard and the one to pick if you are standardizing across a facility of hollow metal doors; 613 suits a darker residential or hospitality look.

The C2000 is keyed entry only, single cylinder, so for the interior doors that need no key you want a Grade 2 non-keyed cylindrical knob in the same duty class. The Corbin Russwin CK4410 Grade 2 passage/closet cylindrical knob covers a 1-3/8 inch to 1-3/4 inch door, the same thickness range, and the Falcon W101 Grade 2 passage knob is a medium duty option with a 2-3/4 inch backset that matches the C2000 standard backset. Finishes will not match exactly across brands, so decide whether appearance or duty rating drives the call.

Grade 2 is the commercial tier and the C2000 is catalogued as a commercial lock, so it is the right call for multi-family corridor, office, and tenant service doors where a Grade 3 residential lock will wear out. Grade 3 alternatives exist, such as the Cal-Royal BER00 Entrance/Office Grade 3 knob lock with a Kwikset keyway or the Pamex FTF Baron Grade 3 entrance knob, and both cover the same 1-3/8 inch to 1-3/4 inch door range. The split is duty and keyway: the C2000 takes a 6-pin Schlage C cylinder or an interchangeable core, which is what lets you fold it into a building-wide key system.

A dummy trim has no latch and no turning function, so it is not a substitute for the keyed Dexter C2000 entrance knob on an operating door. For the trim-only openings, the BEST 6K Series single dummy trim is a Grade 2 medium duty non-keyed cylindrical knob, and the Schlage A170 single dummy trim is a Grade 2 heavy duty cylindrical knob for doors 1-3/8 inch to 1-7/8 inch. The Cal-Royal BA40 Barrington dummy knob covers 1-3/8 inch to 1-3/4 inch.

The Dexter C2000 covered here is a keyed single cylinder entrance/office lock, which is the wrong function for a bath or bedroom. Privacy knob locks that fit the same 1-3/8 inch to 1-3/4 inch door range include the Cal-Royal BER20 Grade 3 privacy knob with brass trim and the Pamex FTF Baron Grade 3 privacy knob lockset. Both lock from the inside with no key on the outside.

The Dexter C2000 is offered in an SFIC prep less core version that accepts a 6-pin or 7-pin core, alongside the conventional 6-pin Schlage C keyed different cylinder. Among comparable knob locks, the Falcon X101 is a Grade 1 heavy duty cylindrical passage knobset with interchangeable core for doors 1-3/8 inch to 2-1/4 inch, which covers the non-keyed openings in the same keying program.

Within Grade 2 entrance knobsets, the Callan Edgewood and the Callan Roland are both Grade 2 entrance knobsets, the Roland in a US15 satin nickel finish. The Dexter C2000 entrance/office lock is Grade 2 as well, UL listed 3 hour, and comes in bright brass 605, oil-rubbed bronze 613, and satin stainless steel 630. The C2000 carries an ANSI/BHMA F109 function designation and ships with an ANSI 1-1/4 inch by 4-7/8 inch curved lip strike.

The Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function, for doors 1 3/16 inch to 2 inch. It opens on a pushbutton code rather than a key, so there is no keyway to tie into an existing system. The Dexter C2000 takes a 6-pin Schlage C conventional cylinder keyed different, or an SFIC prep less core, which is what lets it join a master key program. Choose on whether the opening needs to be on the building's key system or off it entirely.

Non-clutching means the outside knob stays mechanically connected to the lock even when it is locked, so it does not spin free in your hand. It matters because a knob that spins under force is harder to attack, but a solid knob takes the abuse of someone yanking a locked door. On the C2000 that is paired with Entrance/Office function, where the outside knob gets locked and unlocked routinely, so it will see that treatment daily.