Dormakaba Simplex 1000 Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$735.00
$481.71

Dormakaba Simplex 1000 Series Mechanical Pushbutton Cylindrical Knob Lock, Combination Entry and Key Override

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Model: 1021S-26D-41
$735.00
$481.71
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$735.00
$481.71
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Product Summary

Simplex Mechanical Pushbutton Locks eliminate problems and costs associated with issuing, controlling, and collecting keys and cards.

The Simplex 1000 Series provides exterior access by combination, while allowing free egress. This mechanical lock, with knob option, eliminates the material and labor expense of battery replacements, has a single access-code and is programmed via the keypad without removing the lock from the door.

Product Details

Locking Device:Cylindrical latch with 3-hour UL/ULC fire rating on "A" labeled doors

Number of Codes:Single access code—one easy-to-manage code for all users

Programming:Lock is easily programmed via keypad without removing lock from the door

Handing:Factory-handed for left-hand doors; easily field reversible

Operation Modes:

  • Pushbutton Access
  • Passage (select models)—allows access without using the lock entry code. Feature activated from the inside with a thumbturn or key (included with all passage feature models).
  • Lockout (select models)—disables the lock from the inside so that the entry code cannot be used to gain access. Access is permitted using the key override only.

Economical:A cost effective access control solution

Technical Details:

Construction: Heavy-duty cylindrical lock housing with cast front housing; unified trim plate; cast knobs

Numeric Keypad: Vandal resistant, solid metal pushbuttons

Handing: Factory-handed for left-hand doors; easily field reversible

Backset: 2¾" (70 mm), 2⅜" (60 mm)

Latch: ½" (13 mm) throw latch, ¾" (19 mm) throw latch (optional)

Minimum Stile Recommended: 5" (127 mm)

Strike: Standard strike plate; ASA strike plate

Key Override

  • Interchangeable Cores: Small format—Best and equivalents (6 or 7-pin length); core not included
  • Removable Cores: Large format—Medeco/ASSA/Yale/Abloy (5 or 6-pin length), Corbin Russwin, Schlage, and Sargent; core not included

Door Preparation: Easily installs on wood or metal doors. ASA 161 door preparation with additional through bore holes required.

Door Thickness: 1⅜" (35 mm) to 2¼" (57 mm)—Pre-assembled to accommodate 1⅝" (41 mm) to 2" (51 mm)

Durability: D.O.D. Compliant 5220.22M for supplemental access control; weather resistant

Fire Rating: 3-hour UL/ULC fire rating for "A" labeled doors

Warranty: 3-year warranty

Standard Finishes:

  • Satin Chrome 26D (626)
  • Antique Brass 05 (609)

Optional Finishes:

  • Bright Brass 03 (605)
  • Bright Chrome 026 (625)

 

DOWNLOADS and RESOURCES

Manufacturer Resources

Product Specs

Product Group:
Mechanical Locks
Series:
Simplex 1000 Series
Grade:
Grade 1
Product Type:
Simplex Mechanical Push Buttons Locks
Warranty:
3 Year Limited
Keyed Function:
Single Cylinder
Subcategory:
Push Buttons Locks
Product Subgroup:
Bored Locksets
Keyed:
Yes
Stile Width:
5"
Commercial/Residential:
Commercial
Features:
Vandal resistant, solid metal pushbuttons
Lock Type:
Cylindrical
Handle Type:
Knob
Stile Type:
Wide Stile
Lock Function:
Combination Entry Function With Key Override
Product Model:
1000
Backset (Distance):
2-3/4",Key Override,B - SFIC
Product Function:
Entrance
Door Hand Direction:
Non-Handed
Door Strike:
Standard Strike plate, ASA Strike plate
Product Category:
Mechanical Locks
Product Substrate:
Brass or Bronze
Department:
Door Hardware

Dormakaba 1021S-26D-41 – Frequently Asked Questions

1) Which backset and latch throw should I order on a Simplex 1000, and will it latch into my existing strike?
Three locking options are offered: 2-3/4 inch backset with 1/2 inch latch, 2-3/4 inch backset with 3/4 inch latch, and 2-3/8 inch backset with 1/2 inch latch. Measure from the door edge to the center of the bore to pick the backset. On the strike, the 1/2 inch throw suits a standard strike plate or ASA strike in a normal frame; if the door has a wider gap to the frame or the opening sees some misalignment, the 3/4 inch throw gives more engagement. Both standard and ASA strike plates are covered.
2) Does the key override cylinder come with the Simplex 1000, or do I have to order a core separately?
The core is not included on any key override version. You pick the prep to match your existing keyway: B for small format interchangeable core (BEST and equivalents, 6 or 7-pin), C for large format Corbin Russwin (6-pin), M for large format Medeco, ASSA, Yale or Abloy (5 or 6-pin), R for large format Sargent, and S for large format Schlage. Order the core from your keying supplier or have your locksmith pin one to your existing system, so the lock falls under the same master key as the rest of the building.
3) Can I put a Simplex 1000 mechanical pushbutton lock on a fire rated stairwell or corridor door?
Yes. The cylindrical latch carries a 3-hour UL and ULC fire rating on "A" labeled doors, and the lock is Grade 1. It also allows free egress from the inside, which is what a stairwell or corridor opening needs. For facilities running supplemental access control, it is D.O.D. 5220.22M compliant, and it is weather resistant for exterior openings.
4) How many user codes does the Simplex 1000 hold, and can multiple tenants have their own code?
One code, shared by everyone. The Simplex 1000 is a single access code lock, so every authorized person uses the same combination. That works for a mechanical room, a shared back door, or a contractor entrance where you just need to keep the general public out. If you need per-user codes, audit trail, or the ability to delete one person's access without recoding for everybody, this is the wrong lock and you want an electronic access control lock instead. Changing the code here is done through the keypad without pulling the lock off the door.
5) Is the Simplex 1000 handed, and can I use one lock for both left and right hand doors?
One part covers both hands. The lock ships factory-handed for left-hand doors and is field reversible without special tools, which is why it is catalogued non-handed. For a property manager standardizing across a building, that means a single SKU stocks for every opening regardless of swing.
6) Does the Simplex 1000 pushbutton lock need batteries or wiring?
Neither. It is a fully mechanical pushbutton lock, so there is no battery to replace, no power to run, and no wiring in the door or frame. It keeps working through a power outage. That is the main reason it lands on remote gates, pump houses, roof access and equipment rooms where pulling power is not worth the cost.
7) What is the difference between the combination entry with key override version and a Simplex 1000 without the key override?
The key override adds a keyed cylinder alongside the keypad, so staff can get in with a key if the code is forgotten, if the code has been changed and not circulated, or if the lock is put in lockout mode from the inside, which disables code entry entirely and leaves the key as the only way in. It is single cylinder, keyed on the outside only. Without the override, the code is the only way through the door. For any opening where a facilities or emergency responder needs guaranteed access on the building master key, order the override.
8) Will the Simplex 1000 hold up on an exterior door with heavy public traffic?
The construction targets exactly that: heavy-duty cylindrical housing with a cast front housing, unified trim plate and cast knobs, in brass or bronze, with vandal resistant solid metal pushbuttons rather than a plastic keypad. It is a Grade 1 commercial lock and is weather resistant. The pushbuttons are the part that takes the abuse on a public entrance, and metal buttons are what keeps them serviceable.
9) Can a Simplex 1000 be left unlocked during business hours?
Only on models built with the passage feature. Passage lets people through without entering the code, and it is switched on from the inside using a thumbturn or a key, which is included on passage feature models. If you need a door that free-wheels from 8 to 5 and locks after, confirm you are ordering a passage model, because the base combination entry function does not do it and there is no way to add the feature later. The separate lockout feature, on select models, does the opposite: it kills code entry from the inside so only the key gets you in.
10) Is a knob-style Simplex the right choice, or should I be looking at a lever?
The 1000 Series here is a knob trim lock. Knobs are fine for utility rooms, storage, roof hatches and back-of-house doors. Where the opening is on an accessible route or serves the public, most jurisdictions require operable hardware that does not need tight grasping or twisting of the wrist, which rules a knob out and points you to a lever version of the Simplex instead. Function and specs are otherwise the same class of lock, so the decision is purely the trim and the code requirement on that opening.
11) What finishes does the Simplex 1000 knob lock come in, and which one matches the rest of my building?
Four finishes: 626 satin chrome, 609 antique brass, 605 bright brass and 625 bright chrome. Satin chrome 626 is the one that lines up with most commercial openings, since it is the standard finish on commercial levers, closers and exit devices. Bright brass 605 and bright chrome 625 are the polished versions if the rest of the entrance trim is polished.
How fast can I get the Dormakaba 1021S-26D-41 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 Dormakaba 1021S-26D-41 come with a warranty?
Absolutely. The Dormakaba 1021S-26D-41 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 Dormakaba 1021S-26D-41?
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