Dormakaba D900 Small Case Mort...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$453.00
$366.46

Dormakaba D900 Small Case Mortise Dead Bolts, D Cylinder, Keyed Different with SC Keyways

(No reviews yet) Write a Review

Model: D9-60-626
$453.00
$366.46
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$453.00
$366.46
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

DORMA D900 Small Case Mortise Dead Bolts

The D900 is a small case mortise dead bolt for use in heavy duty commercial environments such as schools, hospitals, and office buildings. Typical applications are storage room doors, locker room doors, rest room doors, or any application where latching is not required. The D900 can be used as a primary lock, or as an auxiliary lock.

Technical Details:

  • Standard door thickness 1-3/4"–2-1/4" thicker doors by special request
  • 2-3/4" backset
  • 1-1/8" × 5-9/16" faceplate
  • 1-1/8" × 3-1/2" no lip dead bolt strike
  • 1" throw, stainless steel bolt
  • Non-handed (field reversible)

Certifications:

  • ANSI/BHMA A156.36 Grade 1 certified
  • UL listed 3 hour fire rated. Locks are listed for A label and lesser class doors
  • Fire rated by itself or as auxiliary latching device

Cylinders and Keying:

  • Unless otherwise specified, cylinders will be provided in SC keyway with two (2) nickel silver keys.
  • Optional patented key system available.

Finishes:

  • 605- Bright Brass
  • 606- Satin Brass
  • 612- Satin Bronze
  • 613- Dark Oxidized Satin Bronze
  • 619- Satin Nickel
  • 622- Satin Black
  • 625- Bright Chrome
  • 626- Satin Chrome
  • 630- Satin Stainless

Product downloads

Manufacturer Resources

Product Specs

Product Group:
Mechanical Locks
Series:
D900 Series
Product Subgroup:
Mortise Locks and Trim
Product Type:
Deadbolts
Subcategory:
Mechanical Door Locks
Commercial/Residential:
Commercial
Lock Type:
Mortise
Product Attribute:
Deadbolts
Product Function:
Cylinder x Thumbturn
Product Category:
Mechanical Locks
Department:
Door Hardware

Dormakaba D9-60-626 – Frequently Asked Questions

1) Is the Dormakaba D900 deadbolt fire rated for a labeled door?
Fire rated, UL listed for 3 hours, and listed for A label and lesser class doors. The D900 carries that rating whether it is the only lock on the opening or an auxiliary device alongside a latching lock, which is what lets it go on a labeled storage or mechanical room door without a second latching lockset. It is also ANSI/BHMA A156.36 Grade 1 certified.
2) Will a 1 inch deadbolt throw work with the strike prep already in my frame?
The D900 throws a 1 inch stainless steel bolt and ships with a 1-1/8 by 3-1/2 inch no-lip deadbolt strike. If your frame is cut for a standard ANSI deadbolt strike of that size the swap is direct; if the existing prep is a lipped strike or a different cutout, plan on filling and re-prepping the jamb. The lock face itself is 1-1/8 by 5-9/16 inches, so the door edge mortise has to match that too.
3) What deadbolt functions does the Dormakaba D900 come in besides key and thumbturn?
Six functions across the D900 line: cylinder by thumbturn, cylinder by blank plate, cylinder by classroom, double cylinder, indicator by turn, and turn only. That matters for how the room gets used. A restroom or a locker room usually wants indicator by turn so someone outside can see occupied without trying the door. A double cylinder needs a key on both sides, which many jurisdictions restrict on egress doors. Turn only gives privacy with no keying at all.
4) What keyway do Dormakaba D900 deadbolts come with, and how many keys?
Cylinders ship in the SC keyway with two nickel silver keys unless you specify otherwise, and these are keyed different, so every lock has its own key. If you are standardizing a building on one key, or already run a patented restricted system, say so at order time, a patented key system is offered on the D900.
5) What is a Grade 1 alternative to the Dormakaba D900 if my door is only 1-3/8 inches thick?
The D900 starts at 1-3/4 inches, so it will not suit a 1-3/8 inch door. Among the Grade 1 deadbolts stocked alongside it, the Accentra D111 covers 1-3/8 to 1-3/4 inches with a 2-3/8 inch backset, and the Dexter DB1000 single cylinder covers 1-3/8 to 1-7/8 inches. Both are cylinder by thumbturn. Note the backset difference: the Accentra is 2-3/8 inches against the D900's 2-3/4 inches, so the prep locations are not interchangeable.
6) What is the closest Grade 1 mortise deadbolt alternative to the Dormakaba D900 for a 1-3/4 inch commercial door?
The Cal-Royal CRB800 is the nearest heavy duty match: it is a Grade 1 single cylinder deadbolt with a UL 3-hour fire rated latch and a cylinder x thumbturn function, the same operating function the D900 uses. The D900 itself is ANSI/BHMA A156.36 Grade 1 certified, UL listed 3 hour fire rated, with a 1 inch stainless steel bolt and 2-3/4 inch backset in a small case mortise body. The CRB800 is a bored deadbolt rather than a mortise case, so the door prep differs.
7) What is the difference between the Dormakaba D900 and a Corbin Russwin DL3011 deadlock?
Both are Grade 1 deadlocks for commercial doors, and the Corbin Russwin DL3011 covers the same 1-3/4 inch to 2-1/4 inch door thickness range the D900 does. The DL3011 is a cylindrical deadlock in a bored prep and is furnished cylinder x blank, while the D900 is a small case mortise deadbolt sold in cylinder x thumbturn along with cylinder x blank, cylinder x classroom, double cylinder, indicator x turn and turn only functions. The mortise case means a pocket prep in the door edge rather than cross bores.
8) I need a deadbolt with no key on the inside for an exit door. What are my options besides the D900?
The D900 covers this with its turn only and cylinder x blank functions. The Arrow E60 is a comparable non-keyed exit deadlock, Grade 2, with a blank plate x thumbturn function for doors 1-3/8 inch to 1-3/4 inch thick. The E60 is a Grade 2 device; the D900 is ANSI/BHMA A156.36 Grade 1 certified and UL listed 3 hour fire rated.
9) Which deadbolt should I use if the door is 1-3/8 inch instead of 1-3/4 inch?
The D900 is built for standard door thickness of 1-3/4 inch to 2-1/4 inch. For a 1-3/8 inch door, the Dexter DB1000 single cylinder deadbolt is Grade 1 and covers a 1-3/8 inch to 1-7/8 inch door thickness range, and the Hager 3118 Grade 1 classroom deadbolt covers 1-3/8 inch to 1-3/4 inch with a Schlage C keyway and 6-pin cylinder. Both are cylinder x thumbturn like the D900.
10) What should I order instead of the D900 if the opening needs small format interchangeable core?
The Arrow E61 26D IC is a Grade 2 single cylinder deadlock prepped for SFIC and shipped less core, for doors 1-3/8 inch to 1-3/4 inch. The Deltana CL200LAIC is a Grade 2 single deadbolt with an interchangeable core prep and a 2-3/4 inch backset, the same backset the D900 uses. The D900 ships in SC keyway with two nickel silver keys unless another keying is specified.
11) Which deadbolts match the D900 2-3/4 inch backset?
The Deltana CL200LA is a Grade 2 single deadbolt built to a 2-3/4 inch backset, and the interchangeable core version, the CL200LAIC, uses the same 2-3/4 inch backset. The D900 is a 2-3/4 inch backset small case mortise deadbolt. By contrast the Accentra D111 is a Grade 1 deadbolt on a 2-3/8 inch backset, so it lands the bolt in a different spot on the door edge.
12) Do I have to order the D900 handed, or can I flip it in the field?
Non-handed. The D900 is field reversible, so one part number covers left and right hand openings and you can stock a single spare for a whole building instead of two.
13) Should I use a mortise deadbolt or a tubular deadbolt on a commercial door?
A mortise deadbolt like the D900 pockets into the door edge and takes a 1-1/8 by 5-9/16 inch face prep, which means a router or mortiser and a proper edge cut, but it puts the bolt case fully inside the stile. A tubular deadbolt drops into a bored hole and installs far faster on retrofit work. If your doors are already mortise prepped, or you are matching existing mortise hardware across a school or hospital corridor, the D900 is the right family. For a bored door with no mortise pocket, a heavy duty bored deadbolt such as the Cal-Royal CRB800 or the Grade 1 Dexter DB1000 single cylinder is the simpler install.
14) Can I add a deadbolt to a door that already has a lockset without changing the lock?
That is one of the two ways the D900 is used. It works as a primary lock on doors where latching is not needed, storage rooms, locker rooms, restrooms, and it works as an auxiliary deadbolt above an existing lockset. The fire listing holds in either role, so adding one to a labeled door as an auxiliary device does not void the rating.
15) Can I get a Dormakaba D900 deadbolt with an antimicrobial finish for a hospital?
Antimicrobial coating is an add-on option on the D900, available on the 626 satin chrome and 630 satin stainless finishes only. If your infection control spec calls for treated touch surfaces on patient room or clinical doors, pick one of those two finishes, the option cannot be applied to the brass or bronze finishes.
16) Is a Grade 2 deadbolt good enough, or do I need Grade 1 for a school corridor?
Grade 1 is the highest ANSI/BHMA durability and strength tier and is what most institutional and heavy traffic commercial specs call for; the D900 is A156.36 Grade 1 certified and is built for schools, hospitals, and office buildings. Grade 2 options such as the Arrow DBX61 or the Hager 3215 with its 1 inch throw suit lower traffic doors and light commercial work. If the door is a public corridor, a locker room, or anything on a labeled opening, stay with Grade 1.
17) Is the Arrow 460 strike a substitute for the D900 deadbolt?
No. The Arrow 460 is a mortise lock strike with a straight lip for latchbolt and deadbolt functions, a strike plate for the frame, not a lock. The D900 is the deadbolt itself and includes a 1-1/8 inch by 3-1/2 inch no lip dead bolt strike along with a 1-1/8 inch by 5-9/16 inch faceplate.
18) What is a lower grade deadbolt option with an ADA friendly thumbturn?
The Cal-Royal LSD is a Grade 3 single cylinder deadbolt with an ADA ergonomic thumbturn for doors 1-3/8 inch to 1-3/4 inch, and the Cal-Royal ED500 is a Grade 3 single cylinder deadbolt with an adjustable backset over the same thickness range. The D900 is a Grade 1 small case mortise deadbolt for 1-3/4 inch to 2-1/4 inch doors in heavy duty commercial use such as schools, hospitals and office buildings.
19) What double cylinder deadbolt compares to the D900 double cylinder function?
The D900 is available in a double cylinder function. The Design Hardware D1 Series is a Grade 1 extra heavy duty double cylinder deadbolt for 1-3/4 inch doors, and the Dexter DB1000 double cylinder is Grade 1 for 1-3/8 inch to 1-7/8 inch doors. The D900 double cylinder is a mortise case rated ANSI/BHMA A156.36 Grade 1 and UL listed 3 hour fire rated.
20) If I need the deadbolt to be electrically controlled, what replaces the D900?
The DynaLock 1300 Series is a heavy duty mortise electric deadbolt, so it drops into a mortise pocket the way the D900 does but throws the bolt electrically instead of by key or thumbturn. The Codelocks CL2210 is an electronic mortise deadbolt as well. The D900 is a mechanical small case mortise deadbolt operated by cylinder and thumbturn.
21) Are the Emtek 2050 and 2051 European mortise deadbolts interchangeable with the Dormakaba D900?
They are not a like for like swap. The Emtek 2050 and 2051 are European mortise deadbolts with an integrated roller latch, cylinder x thumbturn, in square and round trim respectively, so the case and prep follow the European pattern and the roller latch keeps the door from swinging free. The D900 is a small case mortise dead bolt with a 2-3/4 inch backset and a 1-1/8 inch by 5-9/16 inch faceplate, with no latching, intended for openings where latching is not required.
22) What deadbolt covers a facility standardizing on Grade 1 in satin chrome or satin stainless?
The D900 is offered in 626 satin chrome and 630 satin stainless steel, along with 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 625 bright chrome and satin black, and it is ANSI/BHMA A156.36 Grade 1 certified. Among comparable Grade 1 units, the Delaney LM Series ships in dull chrome US26D less core, and the Deltana CL200LM is a Grade 1 single cylinder deadbolt in a cylinder x thumbturn function.
23) What finishes can I get on the D900 to match the rest of my door hardware?
Nine finishes on the D900: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil rubbed bronze, 619 satin nickel, 625 bright chrome, 626 satin chrome, 630 satin stainless steel, and satin black. For matching a corridor of existing commercial hardware, 626 and 630 are the two that line up with most institutional standards, and they are also the only finishes that accept the antimicrobial option.
24) Can I get tamper resistant screws on the D900 for a high abuse area?
Yes. TX security screws are offered as an add-on covering the strike, armor plate, and thumbturn. On a school locker room or a public restroom where the thumbturn is the part that gets attacked, add them at order time rather than sourcing them later.
How fast can I get the Dormakaba D9-60-626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 D9-60-626 come with a warranty?
Absolutely. The Dormakaba D9-60-626 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 D9-60-626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Dormakaba D9-60-626 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.