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Emtek 3121 Cheyenne Mortise Entrance Lockset - Dummy
- Can be ordered with any Sandcast Bronze Knob, Crystal and Porcelain or Lever
- Sold as complete set.
- Handing required for All Mortise Locks
Product Codes:
Entryset: 3521
Dummy: 3121
Specifications:
- Backset: 2-1/2" or 2-3/4"
- Door Prep: Standard Mortise ANSI A115.1
- UL Function: ANSI F20 or F13
- Door Thickness: 1-3/4" standard (specify if thicker)
- Keyway: Schlage C
- Handing: Required – specify left or right
- Fire Rating: UL 180 minute
Manufacturer Resources
Mortise Lock Installation Instructions
Product Specs
- Subcategory:
- Mortise Entry Sets
- Collection:
- Brass
- Product Type:
- Mortise Locks
- Product Group:
- Mechanical Locks
- Product Subgroup:
- Mortise Locks and Trim
- Commercial/Residential:
- Residential
- Keyed Function:
- Non-Keyed
- Lock Type:
- Mortise
- Keyed:
- No
- Lock Function:
- Dummy
- Series:
- Cheyenne
- Theme:
- American Classic
- Electronic:
- No
- MAP Policy:
- Yes
- Product Model:
- 3121
- Product Function:
- Dummy
- Product Style:
- American Classic
- Product Material:
- Brass
- Product Category:
- Mechanical Locks
- Product Substrate:
- Brass
- Department:
- Door Hardware
Emtek 3121-RH-FB – Frequently Asked Questions
1) Does the Emtek 3121 Cheyenne dummy mortise set actually latch, or is it fixed?
The 3121 Cheyenne is a dummy set, so it does not latch or lock. It is non-keyed trim that mounts to the door for pull purposes only, typically on the inactive leaf of a pair or on a door held closed by a roller catch or ball catch you supply separately. If you need the operating, keyed version of the same Cheyenne style, that is the 3521 entryset.
2) What door prep does the Emtek 3121 Cheyenne mortise set need?
Standard mortise prep to ANSI A115.1, with a 2-1/2 inch or 2-3/4 inch backset. If your door is already prepped for a standard ANSI mortise lock body at one of those backsets, the Cheyenne trim lines up without recutting the pocket.
3) Will the Emtek Cheyenne 3121 fit a door thicker than 1-3/4 inches?
1-3/4 inches is the standard build. Thicker doors are accommodated, but you have to call out the actual door thickness when you order, which is why there is a door thickness entry field on the set. Measure the leaf before ordering rather than assuming standard.
4) What is a commercial equivalent to the Emtek 3121 Cheyenne dummy mortise set for a door that needs inactive trim only?
The Emtek 3121 Cheyenne is a non-keyed dummy mortise entrance lockset in brass, sold as a complete set with handing specified left or right. On the commercial side, the Schlage L0170 is a Grade 1 mortise non-keyed half dummy trim in the L Series, rated heavy duty for 1-3/4 inch doors. The Emtek is a residential decorative set with a choice of knob, crystal, or lever inside trim; the Schlage L0170 is half dummy trim only for L Series openings.
5) I need the door to actually latch, not just have a handle. What should I use instead of the Emtek 3121?
The 3121 Cheyenne is a dummy function set, so it has no latch and does not operate. If the opening needs a latching, non-locking handle, the Schlage PM010 is a Grade 1 passage latch mortise lock for 1-3/4 inch doors, and the Hager 3810S in the 3800 Series is a Grade 1 passage mortise lock with rose trim and a 2-3/4 inch backset. Emtek's own keyed companion for the Cheyenne pattern is the 3521 entryset.
6) Can I use the Emtek 3121 Cheyenne on a bathroom or bedroom door that needs privacy?
No. The 3121 Cheyenne is a non-keyed dummy with no locking function. For privacy on a bed or bath door, 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, and the Cal-Royal NM8440 is a heavy duty Grade 1 privacy mortise lockset with a deadbolt for 1-3/4 inch doors.
7) Can the Emtek 3121 Cheyenne dummy go on a fire rated door?
The Cheyenne mortise set carries a UL 180 minute fire rating. On a fire door assembly the rest of the opening, frame, hinges and closer also have to be rated and the leaf has to positively latch, so a dummy set alone will not satisfy a latching requirement on an active leaf.
8) What knob or lever choices come with the Emtek Cheyenne 3121 dummy set?
The inside trim is a required selection and the range is wide: sandcast bronze and brass knobs such as the Ace, Spoke, Orb, Round, Egg, Melon, Providence and Victoria, crystal and porcelain knobs including Bristol, Windsor, Georgetown, Hampton, Ebony and Ice White, plus levers from Stuttgart, Helios, Athena, Hermes, Luzern, Cortina, Milano, Turino, Rope, Rustic and Santa Fe among others. You pick one style, and the set ships complete.
9) Is the Emtek 3121 Cheyenne suitable for a commercial opening, or residential only?
Emtek classes the Cheyenne 3121 as residential. For a commercial or institutional mortise opening where a Grade 1 body is specified, look at the Corbin Russwin ML2003 classroom mortise lockset or the Cal-Royal NM8080 storeroom mortise lockset instead, both Grade 1 and both prepped for 1-3/4 inch doors.
10) I need a dummy mortise trim but the Emtek Cheyenne look is wrong for my building. What else is there?
For a commercial-looking dummy, the Schlage L0170 half dummy trim is a Grade 1 non-keyed mortise lever trim for 1-3/4 inch doors. If the dummy trim is going on an exit device rather than a mortise prep, the Falcon MESC600DT dummy escutcheon lever trim suits the M9900 series exit devices. The Emtek 3121 is the decorative brass route, not the commercial one.
11) Does the Emtek Cheyenne 3121 take a key, and what keyway would the matching entryset use?
The 3121 is non-keyed, so there is no cylinder in the dummy set. The Cheyenne mortise family runs a Schlage C keyway, so if you are pairing the dummy leaf with the 3521 entryset on the active leaf, that entryset keys to Schlage C and can be keyed alike with other Schlage C hardware in the house.
12) Do I have to specify handing on the Emtek 3121, and is there a mortise lock that avoids that?
Yes, handing is required on all Emtek mortise locks, and the 3121 Cheyenne is ordered left hand or right hand for an in-swing door. If a non-handed mortise part suits the job, the Kaba Ilco 185 Series mortise lock is a deadbolt function offered with no handing. Field-reversible commercial options include the BEST 45H heavy duty public entrance lock body and the Falcon MA101 Grade 1 heavy-duty mortise passage lock.
13) The Emtek 3121 needs a full mortise pocket. Is there a substitute that uses a bored door prep?
The Emtek 3121 Cheyenne requires standard mortise door prep to ANSI A115.1. If the door is bored rather than mortised, the Schlage PC10 is a Grade 1 passage cylindrical lock, non-keyed with rose, for 1-3/4 inch doors. Cylindrical prep is not interchangeable with the mortise pocket the 3121 uses.
14) Is the Emtek 3121 Cheyenne suitable for a school or high-traffic institutional door?
The 3121 Cheyenne is classified residential and is a non-operating dummy set, so it is not intended for institutional openings that need a rated function. For classroom duty, the Corbin Russwin ML2003 is a Grade 1 mortise classroom lockset in the ML2000 Series for 1-3/4 inch doors, and the Cal-Royal NM8070 is a heavy duty Grade 1 classroom mortise lockset with auxiliary deadlatch.
15) If I want a decorative mortise set that actually locks for an apartment entry, what compares to the Emtek 3121 Cheyenne?
The 3121 Cheyenne is the non-keyed dummy version of the Cheyenne pattern, with the 3521 as its entryset. For a keyed residential-style mortise body, Baldwin's 6301 is an entry/apartment mortise lock body with a 2-1/2 inch backset for doors 1-3/4 inch and over, offered knob by knob or, as the 6301LS, lever by lever. Emtek's 3121 keyway is Schlage C when ordered in keyed form as the 3521.
16) The Emtek 3121 is rated for fire doors. Which comparable mortise locks carry a fire rating?
The Emtek 3121 Cheyenne carries a UL 180 minute fire rating. Among comparable mortise products, the Falcon MA101 Grade 1 heavy-duty passage lock is fire rated, and the Schlage Electronics LEMD-GRW Grade 1 ENGAGE wireless mortise lock and LEBMB-ADD mobile-enabled mortise lock both list a 3 hour fire rating.
17) What finishes does the Emtek Cheyenne 3121 come in?
Three bronze finishes: Flat Black Bronze (FB), Medium Bronze (MB) and Tumbled White Bronze (TWB). All three are offered in both left hand and right hand. The body is brass, so these are living-finish style bronzes suited to the American Classic look of the Cheyenne plate.
18) What function code do Emtek Cheyenne mortise locks use?
The Cheyenne mortise family is built to ANSI F20 or F13, which are the standard entrance function codes an architect or locksmith will see on a door schedule. Emtek publishes F20 mortise lock installation instructions for the prep and body.
19) Is there a keyless or electronic alternative if the Emtek 3121 Cheyenne is too traditional for the opening?
The 3121 Cheyenne is a mechanical, non-electronic brass set. If the opening calls for credential access in a mortise pocket, the Dormakaba E-Plex 2066 Series is an electronic pushbutton keyless mortise lock for wide stile doors, and the Schlage CO-100-MS-40-KP is a Grade 1 standalone electronic mortise lock with privacy function and keypad reader for 1-3/4 inch doors.
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Does the Emtek 3121-RH-FB come with a warranty?
Absolutely. The Emtek 3121-RH-FB is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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