Deltana CL104EAC Commercial Storeroom Standard Grade 2, Round Knob

The CL104EAC covers 1-3/8 inch through 1-3/4 inch doors, so it drops onto both the standard commercial 1-3/4 leaf and the thinner older interior doors you still find in converted buildings. Anything thicker than 1-3/4 is outside its range. If you have a 2 inch door, the Corbin Russwin CK4851 Entrance/Office cylindrical knob covers 1-3/8 to 2 inches, and the Falcon X101 goes to 2-1/4.

It ships with the 2-3/4 inch backset, which is the usual commercial prep. The 2-3/8 inch backset version is a separate order, not an adjustable latch you flip in the field, so measure from the door edge to the center of the bore before you buy. On most commercial hollow metal openings you will be at 2-3/4.

Storeroom function means the outside knob is always locked. Entry is by key only, every time, and there is no button or turn to hold it unlocked. The inside knob always retracts the latch for free egress. That is what you want on mechanical rooms, electrical closets, janitor closets, and stock rooms where the door must never be left casually open. If you need staff to be able to unlock it and leave it unlocked during business hours, storeroom is the wrong function, and an entrance/office lock such as the Dexter C2000 Entry/Office knob or the Corbin Russwin CK4851 is the one to specify.

The CL104EAC uses the Schlage C keyway, so it can be keyed into an existing Schlage C-keyway system by a locksmith. It is a single cylinder lock, keyed outside only, with no cylinder on the inside face. If your building runs a restricted or proprietary keyway rather than standard Schlage C, this will not take your cylinder.

The CL104EAC comes with the ANSI standard 4-7/8 x 1-1/4 inch strike and a 1/2 inch latch throw. If your frame is already prepped for an ANSI 4-7/8 strike, which most commercial hollow metal frames are, it drops straight in with no frame work. If the existing opening has a small round-corner or full-lip residential strike, you will be cutting the frame or jamb to take the ANSI plate.

Grade 2 is the standard commercial duty tier and it is what the CL104EAC carries. It suits storerooms, closets, and back-of-house doors in offices, multi-family, and light institutional work. On a high-traffic opening that gets hit hundreds of times a day, or where a spec sheet calls out Grade 1, step up: the Sargent 8XG04 is the Grade 1 heavy duty storeroom knob with the same 2-3/4 inch backset. The Sargent 6G04 is the closest Grade 2 storeroom equivalent if you want a like-for-like alternative brand.

The Sargent 6G04 is the nearest match. Both are Grade 2 cylindrical knob locks in storeroom function with a single cylinder, so the outside knob stays locked at all times and is retracted by key while the inside knob always allows free egress. The Sargent 6G04 sits in the 6 Line Series and is rated standard duty. The CL104EAC is a Schlage C keyway lock with a 2-3/4 inch backset and a universal handing, so on a standard commercial opening the two are functionally interchangeable; the keyway is the item to confirm if the door has to key into an existing system.

The Sargent 8XG04 is a Grade 1 heavy duty storeroom/closet knob lock with a single cylinder and a 2-3/4 inch backset, in the 8X Line Series. It holds the same storeroom function as the Deltana CL104EAC and the same 2-3/4 inch backset, so the door prep matches, but it is built to the Grade 1 cycle and strength requirements rather than Grade 2. For stockrooms, mechanical rooms, and back-of-house doors in a hotel or hospital that get worked hard every shift, the Grade 1 is the one specifiers usually call out.

Storeroom function on the Deltana CL104EAC keeps the outside knob permanently locked and key-only, which is wrong for an office the occupant controls. For that opening, an entrance/office function is the right pick. The Corbin Russwin CK4851 is a Grade 2 entrance/office cylindrical lock with a Global knob and a conventional cylinder, covering 1-3/8 to 2 inch doors. The Dexter C2000 entry/office ball knob is another Grade 2 keyed option for 1-3/8 to 1-3/4 inch doors. Both let the outside knob be locked or left unlocked from inside, which storeroom function does not do.

No. Storeroom function on the Deltana CL104EAC leaves the outside knob locked at all times, so a teacher would have to key it every entry. Classroom function is the one that fits: the Dexter C2000 classroom ball knob is a Grade 2 keyed cylindrical lock in classroom function for 1-3/8 to 1-3/4 inch doors, where the key locks and unlocks the outside knob from the corridor so the room can be left open during class and secured on the way out. Both are Grade 2 keyed knob locks; the difference is entirely in how the outside knob behaves.

No, despite both carrying a storeroom function. The Imperial USA ED-BKL580 is knob trim in the ED-500 Series, meaning it is the outside trim that mounts to an exit device on the door - there is no latch or lockbody of its own. The Deltana CL104EAC is a complete tubular cylindrical knob lockset with its own latch, a 2-3/4 inch backset, and an ANSI 4-7/8 inch by 1-1/4 inch strike. The Sargent 28C-KNOB is the same kind of part, exit device trim with knob and rose for 1-3/4 inch doors. Order trim only if the door already has an exit device on it.

No handing to specify. The CL104EAC is universal, so one part number covers left hand, right hand, and reverse bevel openings. For a property manager buying a dozen at once for mixed swings across a building, that means one line item instead of sorting doors by hand.

It is a tubular cylindrical lockset, so it goes into a standard bored door prep, a cross bore through the face plus an edge bore for the latch. No mortise pocket, no lock case routing. That makes it a straightforward swap into any door already carrying a cylindrical knob or lever. A mortise lock is a different prep entirely and cannot be exchanged for this without new door prep.

A round knob requires grasping and twisting, so it is not the hardware to put on an accessible route. The CL104EAC is a knob, and the right place for it is a storeroom, mechanical space, or utility closet not in the accessible path of travel. On a door that has to be operable without tight grasping, specify a lever lockset in storeroom function instead.

The CL104EAC is keyed storeroom only, so for the non-keyed openings on the same run you need a different function. Passage for hall and closet doors, privacy for restrooms. The Dexter C2000 Series covers all of it in Grade 2 knob form: passage, privacy, entry/office, and classroom, all on the same 1-3/8 to 1-3/4 inch door range. The Corbin Russwin CK4410 is another Grade 2 passage knob across the same thickness range.

Yes, the latch is UL Listed, with a 1/2 inch throw. That is the only listing carried on the CL104EAC. If you are specifying for a labelled fire door assembly, note that the Falcon W101 and Falcon X101 Grade 2 and Grade 1 cylindrical knobsets carry a fire rating in our records.

If the opening only needs to latch, drop the cylinder entirely. The Corbin Russwin CK4410 is a Grade 2 non-keyed passage/closet cylindrical lock with a Global knob for 1-3/8 to 1-3/4 inch doors, and the Falcon W101 is a Grade 2 medium duty passage/closet knob lock with a 2-3/4 inch backset and a fire rating. The Falcon W101 shares the 2-3/4 inch backset with the Deltana CL104EAC, so on a door already prepped for that backset the swap is direct. Neither has a key cylinder, so nothing on either one can be secured or added to a keying schedule.

Only if the door does not actually need to latch. The Schlage A170 is Grade 2 dummy trim - a knob and rose with no latch and no moving mechanism, for 1-3/8 to 1-7/8 inch doors - and the BEST 6K single dummy trim is the same idea at Grade 2 medium duty. The Deltana CL104EAC is a keyed storeroom lock with a UL Listed latch carrying a 1/2 inch throw, so it holds the door closed and stays secured against the outside knob. A dummy is a pull, not a lock, and will not keep a storeroom closed.

The Deltana CL104EAC is a Grade 2 commercial knob lock in storeroom function with a Schlage C keyway and an ANSI 4-7/8 inch by 1-1/4 inch strike, which is the strike prep commercial hollow metal frames are cut for. Grade 3 keyed knobs such as the Cal-Royal BER00 entrance/office knob with a Kwikset keyway, the Kwikset 400P-CP entry knob for 1-3/8 to 1-3/4 inch doors, or the Master Lock BC01 keyed entry biscuit knob are entrance function on a residential keyway and strike. For unit doors and common back-of-house areas keyed to a Schlage C system, the Grade 2 commercial lock is what keeps one keying schedule across the building.

The Deltana CL104EAC covers 1-3/8 to 1-3/4 inch doors. For a thicker leaf, the Corbin Russwin CK4851 entrance/office cylindrical lock with a conventional cylinder covers 1-3/8 to 2 inch doors, and the Falcon X101 heavy duty Grade 1 cylindrical knobset with an interchangeable core goes to 1-3/8 to 2-1/4 inches, though the X101 is a passage function with no key cylinder in the knob. Measure the leaf at the lock edge before ordering, since these ranges are set by the spindle and screw length.

They are Grade 2 knobsets but not the same function. The Bravura Albany with round trim is a Grade 2 passage/hall/closet knobset, which has no cylinder and cannot be locked at all. The Callan Edgewood is a Grade 2 entrance knobset, where the outside knob can be locked or unlocked by the occupant. The Deltana CL104EAC is a keyed single cylinder storeroom lock, so the outside knob is always locked and only a key retracts the latch. For a mechanical or supply room where the door must never be left unsecured, only the storeroom function does that.

The Lockey 3830 is a mechanical keyless combination knob lock with an auto-locking passage function, covering doors from 1-3/16 to 2 inches. It secures the door behind whoever passes through and opens on a combination rather than a key, which suits a shared back-of-house room where issuing keys to every user is impractical. The Deltana CL104EAC is the keyed route on the same kind of door: a single cylinder storeroom lock on a Schlage C keyway, so access is controlled by the key system rather than by a code that has to be changed when staff turn over.

The BEST 8K is a Grade 1 heavy duty single cylinder cylindrical knob lock in entrance function, in the 8K Series. Entrance function means the outside knob can be left unlocked for the working day and locked when wanted. The Deltana CL104EAC is Grade 2 in storeroom function, so the outside knob is locked at all times and cannot be left free. Both are single cylinder keyed knob locks; pick the 8K where the door alternates between open and secured, and the storeroom lock where it must be secure whenever it is shut.

Among knob locks of this type, the Falcon W101 Grade 2 medium duty passage/closet knob lock with a 2-3/4 inch backset and the Falcon X101 Grade 1 heavy duty passage knobset with interchangeable core both carry a fire rating. Both are passage function with no cylinder, so they latch but do not lock. The Deltana CL104EAC is the keyed storeroom counterpart with a UL Listed latch carrying a 1/2 inch throw and a 2-3/4 inch backset that matches the W101 prep. If the opening is rated and also has to be secured, confirm the rated assembly the door was tested in before you set the function.

Yes. The Deltana CL104EAC is a keyed storeroom lock with no inside locking button, so an occupant cannot secure the door behind them without a key. Privacy function is the correct choice for a restroom or bedroom: the Dexter C2000 privacy ball knob is Grade 2 non-keyed for 1-3/8 to 1-3/4 inch doors, and the Pamex FTF Baron privacy knob lockset is Grade 3 for the same door range. Both lock by a button or turn on the inside with an emergency release outside, which is what code expects on an occupied privacy door.

US32D brushed stainless steel, and that is the only finish it is built in. It is the standard commercial finish, so it will sit alongside stainless push plates, closers, and hinges without a mismatch. If your building is standardized on satin nickel or brass trim, this is not the lock to match it with.