Lockey 2835DC Double Sided Marine Grade Keyless Lock

Teflon Coated Salt-Water Proof Finish


In stock

Your Current Selections:
  • All mechanical two-sided combination cylindrical latchbolt lock.  No batteries or wires necessary.  Plunger bolt to prevent jimmying or knifing of the latch
  • Special marine grade finish — very close to a chrome/nickel color — is teflon and 7x powder coated.   See More Lockey 2835DC finishes
  • Auto-locking with passage feature.  To set passage function, (door latches shut but stays unlocked) simply enter your secret code and then enter the (Y) button.  The lock will remain in the passage mode until you press the (Y) button followed by the (C) button.
  • ADA compliant access
  • Code can be 3-5 characters in length (a code with more or less characters requires a Tumbler Pack – sold separately at checkout)
  • To enter, punch in code, push down on lever handle and open
  • To lock when exiting simply shut the door behind you.  It auto re-locks
  • Weatherproof performance and durability.  Marine rated for salt-air environments
  • Bump-proof security
  • Door thickness:  Fits doors 1 3/16″ ~ 2 5/32″ thick (extension kits available at checkout for doors up to 5″ thick)
  • Backset:  Adjustable
  • Lifetime Manufacturer Warranty Guaranty
GoKeyless is a trained and authorized Lockey® dealer. Sales, service, and support. It's why thousands of clients around the world choose GoKeyless™ for their security and access control needs each year. This all mechanical dual-sided lock can be used to begin a new keyless entry system or expand an existing one.  When you free yourself from keys you completely eliminate the hassle of having to deal with them.  Everyone knows keys just get lost or misplaced - who hasn't bellowed "where are my keys!" What if you could always have your key on you.  Get the 2835-DC today and you will.  It lets you program in a secret pass-code that you, your family, or your employees can all use.  Your time (and money!) will never again be wasted looking for your keys, or waiting to be let back in.  How secure is it?  Put it this way, your existing locks that lend themselves to key-bumping, and unlocked or propped open doors, are hardly keeping you safe. Your current locks - because of keys - are a risk.  A new lock like the 2835-DC is 100% bump-proof.  There is no key hole. What if it fails?  It won't.  This lock is the result of 30+ years of functional testing.  It doesn't fail.  There are no secret techniques you can use on the push-buttons to 'knock' the lock open or determine its cipher. Well chronicled in security and law enforcement circles is the fact that the majority of crimes - resulting in theft, injury, or even death - are crimes of opportunity.  A door that is not always locked, or that can be bumped open invites crime. Customizing your access with innovative door hardware like the 2835-DC is a prescription for security success. Where can this lock be used?  Typically on gates, and openings where access must be controlled on both sides of the door, such as in a jetway, healthcare facility, or on a residence door that has sidelight panels.  Families with special needs children or parents with alzheimers, may also find a two-sided lock like the 2835-DC helpful to prevent wandering. From the inside you can set it to the same pass-code you use for entry, or a different one.  There is even a passage feature built-in.  This is useful for when you don't want everyone to have to put in their code.  At the touchpad you can quickly change the lock's function from normal, to hold-open mode.  The door will latch shut, but not lock.  This will come in handy at your next office party when you have your clients and vendors in.  Also great for your kids' birthdays so you don't have to give out the code to the parents and their kids. Use the 2835-DC to upgrade your key in knob or key in lever locks.  When you have a deadbolt above your knob, we recommend replacing the deadbolt with the Lockey 2210DC.  For situations where you need the door to auto-lock each time, you could remove your deadbolt altogether, and then use a cover plate behind the 2835-DC.  The plate will cover up the hole left by your deadbolt.  To meet codes, the levers on both sides are full-size and comply with the American's Disability Act.  The levers cannot be forced or kicked off. Installation on common doors won't take you any longer than vacuuming out your car - and about the same amount of effort.  Requiring only one extra screw hole, you'll be able to show off your new keyless entry the day the lock arrives.  Should you be installing on an exterior door, you won't need to worry about the elements.  Heavy rain, snow or ice won't phase it.  Extreme warm or cold has no effect.  Even a highly concentrated salt-air ocean environment won't cause it to lose its form or function.

1 5/8 (W) x 5 1/2 (H) x 2 1/4 (D) in.

Total Coverage with Trim Plates

2 1/2 (W) x 6 1/2 (H) x 2 1/4 (D) in.

ADA Lever Dimensions

4 (W) x 1 (H) in.

Door Thickness Minimum

1 3/16 in.

Door Thickness Maximum

2 5/32 in.

Code Length

3 to 5 Characters

Code Capacity



Zinc-plated Steel



Door Handing


Door Prep

Standard 2 1/8 in. Cross-Bore, Edge Bore: 1 in.

Door Stile Width

Minimum 3 in.



Latch Bolt

1/2 in. throw






Marine Grade

Handle Type


Lock Features

Double Sided, Passage Mode

Locking Device

Cylindrical Latch

Door Opening


Access Type

Keypad – Digits


6 lbs


Lifetime Manufacturer

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4.82 out of 5 stars

11 reviews

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What others are saying

  1. Rated 5 out of 5
    Excellent Lock

    John Cote ~ Bay Area Fence Factory (verified owner)

    We install 2835 Double sided locks in commercial, residential and municipal projects for the past seven years.
    We have used them with wood gates on metal frames, vinyl gates as well as aluminum gates.
    No warranty issues. it a great lock.
    Bay Area Fence Factory

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  2. Rated 5 out of 5

    Jesse Patterson

    Great A+++

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  3. Rated 4 out of 5

    Audrey McMurray

    I bought the double sided keyless lock (Lockey 2835DC). It arrived before the security door did and seems to be doing a good job.

    Pros: Easy to use, instructions are good, easy to clear the combination if you make a mistake and need to start over.
    Cons: 1. It didn’t fit the door I had ordered, and had called to chat about to make sure it would fit. I paid the door installer extra money to put it in for me and he had to work for about two hours to figure out how to adapt the new door (Larsen Barrington) to make sure it would work properly. It ended up ok, but it’s not a perfect look because it just doesn’t work for that door’s lock platform. 2. You can only punch the numbers in your code, so eventually, those numbers are going to start to wear down and it will be obvious what your code is. A five-digit code will open the lock and so I decided to overcome this by punching a random sixth digit after entering my five. Won’t work. So after I see wear and tear on my five digits, I guess I’ll have to change the code.

    Except for these two issues, I do like the lock and am considering buying another. I’ve recommended it, plus the door, to my neighbors and will just show them how the door guy overcame the bad fit.

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  4. Rated 5 out of 5

    Edgar from Washington

    Great product, awesome service!

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  5. Rated 5 out of 5

    Ray Rechtin (verified owner)

    Excellent product. Easy to follow instructions. Worked perfectly with the separate weldable lock box.

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  6. Rated 5 out of 5

    Russel from California

    Got the product from go Keyless quickly and was as expected from site. I ordered a lock and a weldable box. I provided it to my gate fabricator and he installed on my home gate. It is working great. The buttons are easy to push and the handle is easy to turn. I am very happy with the product. The only thing I could add is that it would be nice for the painted numbers to be phospholuminescent (sp?) so that they are easier to read at night because I don’t have good lighting near the gate. I would definitely buy from Gokeyless again.

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  7. Rated 5 out of 5

    Clayton, GM, Armenti Construction, Florida

    We were very satisfied with the product and service/prompt shipping. The end user loves the unit and it was quite easy to install.

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  8. Rated 5 out of 5

    Ian from R A Shaw Designs, Florida

    Extremely happy with this lock. We have used it on more than 10 homes. It is the only mechanical lock that holds up to the harsh elements here in the Caribbean.

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  9. Rated 5 out of 5

    Shelly, Wichita, KS

    Thank you for giving me a chance to thank you for our purchase! We bought the Lockey 2835DC because I own a residential care home and I must ensure my elderly residents safety. In order to provide for their safety’ I must have a system in place to prevent Residents from walking out and wandering away without our staffs knowledge. By purchasing the Lockey 2835DC from your company (a double coded lock…both inside and out) I feel secure that I have done everything possible to keep my residents safely inside our home and their families also feel safe too’ as only those with the “code” can enter or exit our home and we are the ones who control that knowledge. I also appreciate that your lock is make with extremely high quality metal and the fact that we can set and also change our own code numbers’ should need be. Thank you again!

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  10. Rated 5 out of 5

    Bill from Florida

    Easy to install and operate. Only down side is the lockbox (gate application) does not have a stop incorporated into it.

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  11. Rated 4 out of 5

    Forest, Dallas, TX

    GoKeyless was the RIGHT CHOICE at the right price for my Security Project. I had made a custom Steel Strike Plate for my employers gate to his backyard. We installed the plate on the fence’ then seated the latch and set the easy to code buttons. My employer really liked the look and feel of security it offered. I wanted to make sure it would take a lot of work to break through the setup’ and GoKeyless had the tough but very appealing setup I needed. The gate is about 5″ thick’ but the unit was easy to put in and looks great. We placed another setup on the door to the rear car gate; similar setup but built up the housing for the GoKeyless unit. Sturdy’ secure and very much what we were needing for his property.

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Customer Questions & Answers

  1. Answered by the admin The trim plate is not required for installation. We recommend that the plate is installed as these plates help with the moisture barrier for the lock.
  2. Answered by the admin Most gate installations with this lock do require a gate box to be paired with it. Please see the link below for the gatebox that fits this lock. https://www.gokeyless.com/product/kbxdig23-gate-box/
  3. Answered by the admin Yes, the lock is very simple to uninstall but must be removed from the door in order to change the code on the lock. Once removed you can take off the back plate to change the code to the desired new entry code.
  4. Answered by the admin

    Yes, you are able to change your code at any time. 

  5. Answered by the admin

    If you purchase the pre-built Keedex gate box that we offer for these locks there is no drilling necessary as they come already prepped to accept the lock. Please make sure to choose the aluminum version of the gate box. 

  6. Answered by the admin

    These locks are mechanical meaning that they have no power. Because of this aspect the locks can only accept a single code per side. So if you need an individual code per person you would need to look at an electronic double sided lock such as a DL5200 which holds 100 users. 

  7. Answered by the admin

    You will need to purchase the extension kit for extra thickness. 

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