Dormakaba Simplex 1000 Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$665.00
$411.18
Dormakaba Simplex 1011 Mechanical Push Button Knob Lock in 626 Satin Chrome finish, shown assembled with latch bolt extended — side profile view

Dormakaba Simplex 1000 Series Mechanical Pushbutton Knob Lock

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Model: 1011-26D-41
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$665.00
$411.18
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Dormakaba Simplex 1000 Series Mechanical Pushbutton Knob Lock — No Key Override

The Simplex 1000 Series eliminates the cost and complexity of issuing, tracking, and collecting keys and cards. This mechanical pushbutton knob lock provides combination-only exterior access with free egress — no batteries, no key override cylinder, no card readers to maintain. A single access code is programmed directly via the keypad without removing the lock from the door.

Key Features

  • Grade 1 commercial-duty cylindrical lock housing with cast front housing and cast knobs
  • Battery-free mechanical operation — no power source required, no battery replacement costs
  • Single access code — one code for all users, easy to manage and change
  • Vandal-resistant, solid metal pushbuttons
  • 3-hour UL/ULC fire rating for "A" labeled doors
  • D.O.D. Compliant 5220.22M for supplemental access control
  • Weather resistant construction
  • Non-handed — factory set for left-hand, easily field reversible
  • Installs on wood or metal doors; ASA 161 door prep with additional through-bore holes required

Technical Specifications

  • Lock Type: Cylindrical
  • Handle Type: Knob
  • Backset: 2⁄⁄" (70 mm) or 2⅜" (60 mm)
  • Latch Throw: ½" (13 mm) standard; ¾" (19 mm) optional
  • Minimum Stile Width: 5" (127 mm)
  • Door Thickness: 1⅜" (35 mm) to 2¼" (57 mm) — pre-assembled for 1⅝" (41 mm) to 2" (51 mm)
  • Strike: Standard strike plate; ASA strike plate included
  • Key Override: None (combination entry only)
  • Fire Rating: 3-hour UL/ULC, "A" labeled doors
  • Warranty: 3-year limited

Operation Modes

  • Pushbutton Access: Enter combination to unlock from exterior; free egress from interior at all times
  • Passage (select models): Allows access without the entry code; activated from inside with thumbturn or key
  • Lockout (select models): Disables entry code from inside; requires key override to re-enter (key override models only)

Available Finishes

  • 626 Satin Chrome (26D) — standard
  • 609 Antique Brass (05) — standard
  • 605 Bright Brass (03) — optional
  • 625 Bright Chrome (026) — optional

Downloads & 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:
Non-Keyed
Subcategory:
Push Buttons Locks
Product Subgroup:
Bored Locksets
Keyed:
No
Stile Width:
5"
Commercial/Residential:
Commercial
Features:
Vandal resistant solid metal pushbuttons, Battery-free mechanical operation, 3-hour UL/ULC fire rated, Weather resistant, D.O.D. Compliant 5220.22M, Field-reversible handing, Keypad programming without removing lock
Lock Type:
Cylindrical
Handle Type:
Knob
Stile Type:
Wide Stile
Lock Function:
Combination Entry Function Only
Product Model:
1000
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
Backset (Distance):
2-3/4", 2-3/8"
Department:
Door Hardware

Dormakaba 1011-26D-41 – Frequently Asked Questions

1) Can a Simplex 1000 pushbutton lock go into a door that is already bored for a standard cylindrical lockset?
Not without drilling. The Simplex 1000 uses ASA 161 door prep plus additional through-bore holes to carry the pushbutton mechanism, so a door already prepped 161 for a cylindrical lock is the right starting point but still needs those extra holes cut. Match the backset to what is in the door: both 2-3/8 inch and 2-3/4 inch are offered. If you are replacing a knob lock on an existing opening, that is usually a straightforward field job on a metal or wood door, but budget the drill time.
2) Will a Simplex 1000 knob lock fit a narrow stile aluminum storefront door?
No. The Simplex 1000 is a wide stile lock and needs a minimum 5 inch (127 mm) stile. A typical aluminum storefront narrow stile is far under that, and the knob and pushbutton housing will not land on the rail. For a glass front opening you need a narrow stile device sized for that door, not this cylindrical knob lock. Where it does work is wood and hollow metal doors with a full lock stile, which is most back of house, mechanical room, and tenant entry openings.
3) What happens if someone forgets the code on a Simplex 1000 with no key override?
There is no mechanical bypass on the no-key-override configuration. It is combination entry only, with no override cylinder, so the code is the only way through from the outside. Nobody gets trapped inside, because the interior knob gives free egress at all times. If a facility wants a key bypass for lockouts or for a locksmith to get in, order the Simplex 1000 in a key override version instead. The inside lockout mode, which disables the entry code, also depends on a key override to get back in, so it is not available on a combination-only unit.
4) Is the Simplex 1000 pushbutton lock fire rated for an A labeled door?
Yes, 3-hour UL and ULC fire rated for A labeled doors, and the lock is Grade 1 commercial duty with a cast front housing and cast knobs. The interior knob retracts the latch at all times, so the egress side stays free. Substrate is brass or bronze. That combination, Grade 1 plus the 3-hour rating, is what most institutional and MRO specs are asking for on a stairwell or corridor opening.
5) Can I get the 3/4 inch throw latch on a Simplex 1000 with the 2-3/8 inch backset?
No. The 3/4 inch throw latch is only built against the 2-3/4 inch backset. Order a 2-3/8 inch backset and you get the 1/2 inch throw latch. All four finishes (626 satin chrome, 605 bright brass, 609 antique brass, 625 bright chrome) are offered on either backset, so finish choice never forces the backset. If your frame gap genuinely needs the longer throw, the door has to be prepped for 2-3/4 inch backset.
6) Is the Simplex 1000 handed? I need it on a right hand door.
Non-handed, so one part number covers both hands. It arrives factory set for left hand and reverses in the field during installation, no special kit and no separate SKU for a right hand opening. Handy on a fleet order where you are hitting doors that swing both ways and do not want to sort stock at the site.
7) Does the Simplex 1000 need batteries or power run to the door?
Neither. The Simplex 1000 is purely mechanical, so there is no power to pull, no battery to replace, and nothing that drops out in an outage. Construction is weather resistant, which is why these end up on exterior gates, unheated warehouses, pump houses, and roof access doors where a battery keypad dies every winter. The pushbuttons are solid metal and vandal resistant rather than a rubber or membrane pad.
8) Can I hold a Simplex 1000 unlocked during business hours so people get in without the code?
Not on the no-key-override version. Its function is combination entry only, meaning every outside entry takes the code, all day. Passage, the mode that lets people through without entering a code, is a select model feature on the Simplex 1000 line, and the lockout mode that shuts the code off from inside depends on a key override. If your opening is a daytime storefront or office door that needs to sit free during hours, specify a Simplex 1000 configured with those functions rather than the combination-only unit.
9) Can I change the code on a Simplex 1000 without pulling the lock off the door?
Yes. Programming is done through the keypad with the lock in place, so a code change at tenant turnover or after a contractor finishes is a few minutes at the door rather than a removal and reinstall. It holds a single access code, one code shared by everyone who uses that opening, so there are no user credentials to issue, track, or collect back, and no cards or fobs to replace. That is the trade: simple to manage across a lot of doors, but no per-user access and no record of who came through.
10) What do I have to specify when ordering a Simplex 1000, and does anything else need to come with it?
Three choices settle the order: finish, backset (2-3/8 inch or 2-3/4 inch), and latch throw (1/2 inch standard, or 3/4 inch, which only comes on the 2-3/4 inch backset). Nothing else has to be bought alongside it. Strikes are covered, standard plate and ASA plate both come with the lock. There is no cylinder to order because the combination-only unit has no key override, and no power supply, transformer, batteries, or reader, since it runs mechanically. What you do need on site is a drill: the opening takes ASA 161 prep plus extra through-bore holes.
11) Will the Simplex 1000 match the satin chrome hardware on the rest of my building?
626 satin chrome is one of the four finishes, along with 605 bright brass, 609 antique brass, and 625 bright chrome, and every one of them is available on both the 2-3/8 inch and 2-3/4 inch backset. Worth knowing before you order a run of them: this is a knob lock, not a lever, so it will sit next to lever trim in the same finish rather than matching its shape. On an opening where the rest of the floor is levers, that visual difference is the thing people notice, not the finish.
12) Does the Simplex 1000 meet D.O.D. requirements for supplemental access control?
It is listed as D.O.D. Compliant 5220.22M for supplemental access control, which is why these turn up on secure storage and controlled rooms in government and defense facilities. Pair that with the Grade 1 rating and the fact that there is no card reader, no wiring, and no cylinder to pick or bump, and the failure points on the opening come down to who knows the code.
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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 1011-26D-41 come with a warranty?
Absolutely. The Dormakaba 1011-26D-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 1011-26D-41?
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