Simplex 5041

Extra Heavy Duty Keyless Lock

Reviews (6) | Customer Questions (4)


Keep it simple. The Simplex 5041 hits the top of the charts for security and reliability with easy keyless access. This extra heavy duty and fully mechanical keyless lock reduces the costs and problems associated with electronic maintenance, managing keys, and labor. Features key override and passage mode.


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SKU: 5041
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For more information or ordering assistance, please call our Commercial Project Specialists at 877-439-5377 ext 9003

  • ADA compliant lock
  • 100% Mechanical push-button lock
  • Thousands of possible codes combinations
  • Change code with change tool (provided) from exterior side on 5021 and 5041 models, interior side on 5031 and 5051 model to meet Dept. of Defense standards
  • Auto-locking with passage mode feature (in passage mode – set from inside – lock will latch shut but not lock, allowing for code-free entry)
  • Covers existing standard ASA 161 door hole
  • Extra Heavy Duty Latchbolt with deadlocking plunger
  • Fits left and right swinging doors
  • All hardware and instructions included with order
  • Low maintenance, no batteries or wires
  • Fits nearly all hinged doors
  • Includes mechanical key override for emergency access
  • Backset:  2 3/4″ included (2 3/8″ available at checkout)  How do I measure?
  • 3-year manufacturer warranty

**Lock shipped standard with Schlage brand conventional cylinder for key override in 5021, 5031, and 5041 non-IC models.

GoKeyless™ is a factory trained and authorized Kaba Simplex® dealer. Sales, service, support, valid warranties. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year. Simplex 5041 - Combination Entry (change codes from exterior), Key Override & Passage Industrial strength combination lock from the leader in top of the line security solutions, Kaba Ilco.  Kaba has been making high quality security products for over 100 years.  The Simplex 5000 Series is an ANSI rated Grade 1 security lock that is highly weather resistant.  Entry is gained via a 1 to 5 digit code that is sequential.  Vandal resistant, the Simplex series of PIN based locks have found widespread acceptance in high-traffic commercial, institutional, and government buildings.
Exterior Dimensions

8 7/8 (H) x 3 3/8 (W) x 3 3/16 (D) in.

Inside Dimensions

8 7/8 (H) x 3 3/16 (W) x 2 1/8 (D) in.

Door Thickness Minimum

1 3/8 in.

Door Thickness Maximum

2 1/4 in.

Door Handing


Door Stile Width

Minimum 5 in.

Door Prep

Standard 2 1/8 in. Cross-Bore, Edge Bore: 1 in., Through-Bolt Hole(s)

ANSI Rating

A156.2, Grade 1 (Best)

BHMA Rating

Grade 1 (Best)

Code Length

1 to 5 Digits

Code Capacity





2 3/4 in.




Kaba Simplex

Lock Features

Passage Mode

Handle Type

Lever Handle Door Locks

Door Opening


Locking Device

Cylindrical Latch

Access Type

Key, Keypad – Digits


Extra heavy-duty solid cast housings, Solid cast, ADA-compliant levers

Fire Rating

3-hour UL/ULC fire rating for A labeled doors


9.25 lbs


3 Year Manufacturer


Single Factor

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4.83 out of 5 stars

6 reviews

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What others are saying

  1. Great Product

    Chris J (verified owner)

    Simply put, this combo door knob is fabulous. It makes so much sense because it’s build so strong and does not electronics to make it function, plus it excellently weather proof.

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  2. Great lock

    Val (verified owner)

    Built like a tank.

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  3. Brian (verified owner)

    This is a very nice lock – we installed it to provide night-time access to restrooms at our tennis facility. The lock is sturdy and the buttons and opening mechanisms works well with good feedback (clicks) for the user. The locks look nice in the facility. While the same button can not be used twice in a code, the sequence can include two buttons pushed at the same time so the number of possibilities is pretty large. This is a mechanical lock, it only uses one code, and it does not keep track of the number or identity of entries — but it is ideal for our application. We have had one of these on another facility bathroom for about 10 years (with high daily usage in a protected outside setting) and it is still operating well. We have now added second unit… Except as described below, the installation is pretty simple (be sure to get the correct setback). Please note that it is somewhat difficult to install the lever handle. The locking tab does not move smoothly into the retaining slot — it feels like it is not aligned or is jammed… you need to jiggle and jiggle and keep gently working the key and it will eventually rotate into position. It has taken 5 to 15 minutes every time I have installed one of these. Other than that one time glitch (after it is installed, you do not have to think about it again) — we like these locks…

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  4. William from Michigan

    The Simplex 5041 was easy to install in my existing door and the entry code also easy to program’ the lock is built ruggedly and has been working well’ it allows me to give entry access to contractors and stop the access by revising the code when appropriate. Gokeyless was also quick and helpful in selecting the right lock for my needs.

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  5. Duke from California

    I’m very satisfied for this product I purchase and most importantly customers service answered my questions and made it easier for my to choice the best product for my entree door.

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  6. Gow from Michigan

    The Simplex 5041 is a very well made product. Directions sent should be specific to the actual product. The generic directions were super confusing!

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Customer Questions & Answers

  1. Q Does this lock work in below freezing conditions? answer now
    Asked by Mike on June 1, 2022 3:51 PM

    This lock is weatherproof and would work in below freezing temperatures. 

  2. A

    The physical key will only have the ability to open the door. It is simply a physical override and cannot be used to disable the electronics. 

  3. A

    The Simplex 5000 does not offer a privacy feature to disable access from the outside. 

  4. A

    There is not for this lock type, however, you can go with an EE lockset by simplex which is double sided and comes in either keyed or non-keyed version.  

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