Emtek 3521 Cheyenne Mortise En...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,121.00
$896.80
Emtek 3521 Cheyenne Mortise Entrance Lockset - Entry Set

Emtek 3521 Cheyenne Mortise Entrance Lockset - Entry Set

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Model: F20-3521-75-RH-FB
From the Brass Collection
$1,121.00
$896.80
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,121.00
$896.80
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Emtek 3521 Cheyenne Mortise Entrance Lockset - Entry Set

- Can be ordered with any Sandcast Bronze Knob, Crystal and Porcelain or Lever
- Sold as complete set. Includes Latch and Strike Plate

- 2-1/2" or 2-3/4" Backsets
- Standard Mortise Door Prep ANSI A115.1
- UL Listed Mortise with ANSI F20 or F13 Function
- Schlage C Keyway
- 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

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
Lock Type:
Mortise
Lock Function:
Entry
Series:
Cheyenne
Theme:
American Classic
Electronic:
No
Keyed:
Yes
Keyed Function:
Single Cylinder
MAP Policy:
Yes
Product Model:
3521
Product Function:
Entry
Product Style:
American Classic
Product Material:
Brass
Product Category:
Mechanical Locks
Product Substrate:
Brass
Department:
Door Hardware

Emtek F20-3521-75-RH-FB – Frequently Asked Questions

1) Will the Emtek 3521 Cheyenne mortise entry set fit my existing door prep?
The 3521 Cheyenne uses standard mortise door prep to ANSI A115.1, so it drops into an opening already machined for a standard mortise lock body. Backset is either 2-1/2 inch or 2-3/4 inch, so match the pocket you already have. Standard door thickness is 1-3/4 inches; if your door is thicker, that has to be specified when ordering.
2) Do I have to specify handing on the Emtek 3521 mortise lockset?
Yes, handing is required on all Emtek mortise locks, and you pick both the hand and the swing: left hand in-swing, left hand out-swing, right hand in-swing, or right hand out-swing. Stand outside the door, on the key side. Hinges on your left is left hand; if the door pulls toward you it is the out-swing version. Get this wrong and the lever or knob will not orient correctly.
3) What is the difference between the F20 and F13 function on the Emtek 3521?
F20 is the entrance function, the usual choice for a front door: key outside, thumbturn or button inside. F13 is the dormitory function, used where you want the outside trim to stay locked and require the key regardless of what happens on the inside. Both are offered on the Cheyenne entry set and both are UL Listed mortise functions, so pick based on how the opening needs to behave, not on the trim.
4) Can I key the Emtek 3521 to match my other Schlage keyed doors?
The 3521 Cheyenne uses a Schlage C keyway, so it can be keyed into an existing Schlage C system. Keying is set at the order: choose keyed different or keyed alike, and if you have an existing code you can supply it as a key-to-code request. It is a single cylinder keyed function, meaning key outside only.
5) Is the Emtek 3521 Cheyenne suitable for a commercial building entrance?
No, the Cheyenne 3521 is a residential entry set, cast brass, in the American Classic style. For a commercial opening where a Grade 1 mortise lock is specified, look at the Cal-Royal NM8050 entrance/office mortise lockset or the Corbin Russwin ML2003 in the ML2000 Series, both Grade 1 and built for 1-3/4 inch doors. The Emtek is for houses and residential-grade multi-family front doors where the look drives the choice.
6) What is the closest equivalent to the Emtek 3521 Cheyenne mortise entrance lockset from another decorative residential brand?
The nearest decorative-residential match is the Baldwin 6301 entry/apartment mortise lock body, offered in a knob-by-knob configuration and in a lever-by-lever configuration as the 6301LS, both with a 2-1/2 inch backset and rated for doors 1-3/4 inch and over. The Emtek 3521 Cheyenne is a keyed single-cylinder entry mortise set sold complete with latch and strike, available in 2-1/2 inch or 2-3/4 inch backset and in F20 entrance or F13 dormitory function. So the Baldwin gives you a matching entry/apartment function at the 2-1/2 inch backset, while the Emtek adds the 2-3/4 inch backset option and a choice between the two ANSI functions.
7) I need a mortise entry lock for a commercial storefront or office corridor - is the Emtek 3521 Cheyenne the right choice?
The Emtek 3521 Cheyenne is designated for residential use, built in brass, and is a keyed single-cylinder entry set. For commercial openings the Grade 1 mortise locksets are the better fit: the Cal-Royal NM8050 is a heavy duty Grade 1 office/entrance mortise lockset with auxiliary deadlatch for 1-3/4 inch doors, the Accentra 8805FL is a Grade 1 storeroom mortise lock in the 8800 Series with an Arcadia lever, and the Cal-Royal NM8080 is a Grade 1 storeroom mortise lockset with an interchangeable core option. Those carry a stated Grade 1 rating, which the Cheyenne set does not target since it is a decorative residential line.
8) What comes in the box with the Emtek 3521 Cheyenne entry set?
It ships as a complete set: the mortise lock body, the Cheyenne exterior plate, the interior trim you select, plus the latch and strike plate. What you still have to choose is the inside knob or lever, since that is not fixed to the set.
9) Can I pick my own knob or lever for the inside of the Emtek 3521?
That choice is required when you order. The Cheyenne entry set takes any Emtek sandcast bronze knob, crystal or porcelain knob, or lever for the inside trim, from Stuttgart and Helios levers through the Ace and Spoke knobs, the L-Square, T-Bar and R-Bar collections, and crystal options like Bristol, Windsor and Diamond. Exterior finishes are Flat Black Bronze, Medium Bronze and Tumbled White Bronze.
10) I want the Cheyenne look on an inactive door of a pair. What do I order?
Use the dummy version, product code 3121. The 3521 is the keyed entry set with the working mortise lock body; the 3121 gives you the same trim with no lock function for an inactive leaf or a closet door.
11) Is there an Emtek 3521 alternative if I need a 2-1/2 inch backset mortise body from another brand?
The Baldwin 6301 entry/apartment mortise lock body uses a 2-1/2 inch backset and is listed for 1-3/4 inch doors and over, available knob by knob or lever by lever. The Baldwin 6310 entry/storeroom body is also 2-1/2 inch backset and covers 1-3/8 inch doors and over, which matters if your door is thinner than standard. The Emtek 3521 itself gives you 2-1/2 or 2-3/4 inch backset.
12) The opening does not need to be keyed - what mortise lock should I use instead of the Emtek 3521 Cheyenne?
The 3521 Cheyenne is a keyed single-cylinder entry set, so for a non-keyed opening look at a passage or privacy mortise lock instead. The Schlage PM010 is a Grade 1 non-keyed passage latch mortise lock for 1-3/4 inch doors, the Hager 3810S is a Grade 1 passage mortise lock with rose and 2-3/4 inch backset for doors 1-3/4 to 2-1/2 inch, and the Hager 3810E is the same passage function with an escutcheon. For a bed or bath opening, the Hager 3840S is a Grade 1 privacy mortise lock with a 2-3/4 inch backset, and the Cal-Royal NM8440 is a Grade 1 privacy mortise lockset with deadbolt.
13) What is the difference between the Emtek 3521 Cheyenne and the Baldwin 6310 mortise lock?
Both are mortise lock products for entry openings, but the function differs. The Baldwin 6310 is an entry/storeroom function with a 2-1/2 inch backset, offered knob by knob and rated for doors 1-3/8 inch and over, with a right hand reverse lever version catalogued as the 6310190RRLS. The Emtek 3521 Cheyenne is a single-cylinder entry set supplied with latch and strike plate, prepped to standard mortise ANSI A115.1, with a Schlage C keyway and a UL 180 minute fire rating, and it is ordered in either F20 entrance or F13 dormitory function with handing specified.
14) Is there a keyless or electronic alternative to the Emtek 3521 Cheyenne mortise entry set?
The 3521 Cheyenne is a mechanical, non-electronic keyed set with a Schlage C keyway. If you want code or credential access on a mortise prep, the Alarm Lock DL2700CR Trilogy T2 is a Grade 1 electronic mortise lock with classroom function and weatherproof design for doors 1-5/8 to 1-7/8 inch, the Dormakaba E-Plex 2066 is an electronic pushbutton keyless mortise lock, and the Schlage CO-100 is a Grade 1 standalone electronic mortise lock with a keypad reader for 1-3/4 inch doors. The Accentra NTM623-NR nexTouch Generation 3 mortise lock uses a capacitive touchscreen keypad with cylinder override and no deadbolt.
15) Can I use a Sargent 4874 mortise deadbolt in place of the Emtek 3521 Cheyenne entry set?
No - they do different jobs. The Sargent 4874 is a double cylinder mortise deadbolt with a 2-3/4 inch backset in the 4870 Series; it is deadbolt only and provides no latching handle function. The Emtek 3521 Cheyenne is a complete entry set including latch and strike plate with knob or lever trim on the inside, in single cylinder keyed configuration. If the opening only needs a deadbolt, the Kaba Ilco 185 Series mortise deadbolt is another option and requires no handing, whereas handing must be specified for the 3521.
16) My door is a narrow ornamental iron frame - will the Emtek 3521 Cheyenne fit, or is there a better mortise lock?
The Emtek 3521 Cheyenne is built for 1-3/4 inch doors as standard with standard mortise ANSI A115.1 prep and 2-1/2 inch or 2-3/4 inch backsets. For thin ornamental iron stiles, the Marks USA 21AC and 22AC entrance double cylinder ornamental iron mortise locks with round knob are listed for 1 inch door thickness, which suits that construction. Note those are double cylinder, while the Cheyenne set is single cylinder keyed.
17) Does the Emtek 3521 Cheyenne need power or wiring?
No. The Cheyenne 3521 is a fully mechanical mortise entrance lockset, no electronics and no wiring in the door. If you want keypad or credential access on a mortise prep instead, that is a different category of product, such as the Alarm Lock DL3500CR Trilogy electronic mortise lock or the Schlage CO-100 standalone electronic mortise lock.
18) What matches the Emtek 3521 Cheyenne on a door where only non-functioning trim is needed?
For an inactive leaf or a door that needs no latching, Emtek assigns the dummy version of the Cheyenne the product code 3121, which keeps the same trim appearance as the 3521 entry set. Comparable dummy trim from other lines includes the Schlage L0170 Grade 1 mortise half dummy lever trim for 1-3/4 inch doors, and the Falcon MESC600DT dummy escutcheon lever trim intended for M9900 Series exit devices.
19) Does the F13 dormitory option on the Emtek 3521 Cheyenne do the same thing as the Sargent 7925?
They serve the same type of opening from different product families. The Sargent 7925 is a Grade 1 heavy duty dormitory exit function mortise lock in the 7900 Series with rose trim and a single cylinder deadbolt, catalogued as corridor/dormitory function. The Emtek 3521 Cheyenne can be ordered in ANSI F13 dormitory function as an alternative to F20 entrance, as a single cylinder keyed brass set on a Schlage C keyway with handing specified at order.
How fast can I get the Emtek F20-3521-75-RH-FB delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Emtek F20-3521-75-RH-FB come with a warranty?
Absolutely. The Emtek F20-3521-75-RH-FB is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Emtek F20-3521-75-RH-FB?
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