Lockey 3210DC

Marine Double-Sided Keyless Deadbolt

Reviews (6) | Customer Questions (16)


In stock

SKU: 3210DC
Your Current Selections:
  • Deadbolt Security
  • Double-Sided locking – ideal for gates
  • Over-sized knob on exterior and interior
  • Adjustable deadbolt backset, 2 3/8″ – 2 3/4″
  • Marine Grade finish for saltwater environments
  • Easy Installation
  • Replaces an existing deadbolt
  • Easy to change combination
  • Changeable Handing
  • Single-sided Combination available (3210)
  • Covers standard 2 1/8″ hole
  • Extension Kit available for doors up to 5″ thick

Disclaimer:  Check with Local Authority Having Jurisdiction before installing on exiting doors.

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. Heavy-duty keyless entry lock manufactured by Lockey is teflon coated and rated to withstand salt water environments.  This double sided deadbolt lock will stand up to the harshest of ocean side spray and weather!  If you have an ocean side pool gate, parking lot gate, condo gate, or beach access gate and you're tired of having to deal with keys, try this keyless gate lock, we guarantee you will love it!  This is a deadbolt, which means to lock it, you manually turn the knob on the outside body.  To unlock, simply enter your secret code of 3-5 numbers / letters and turn the knob to retract the deadbolt.  Combination lock can have the same or different code on each side.

6 1/4 (H) x 1 3/4 (W) x 2 (D) in.

Total Coverage with Trim Plates

6 3/4 (H) x 2 1/4 (W) x 2 1/8 (D) in.

Door Thickness Minimum

1 3/16 in.

Door Thickness Maximum

2 11/64 in.

Code Capacity


Code Length

3 to 5 Characters




Teflon coated stainless steel interior components, Zinc-plated Steel

Door Handing


Door Prep

2 1/8 in. diameter face hole, Edge Bore: 1 in., Through-Bolt Hole(s)

Door Stile Width

Minimum 3 in.

Door Opening


Locking Device


Lock Features

Double Sided

Handle Type


Access Type

Keypad – Digits








6 lbs


Lifetime Manufacturer

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4.83 out of 5 stars

6 reviews

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What others are saying

  1. Convenient and quality lock for outside gate

    AG (verified owner)

    I purchased and installed the Lockey 3210DC on my outside gate. The lock itself is quality, fully mechanical, easy to re-program, and has a nice feel to the keying and deadbolt action. It works well. The only reason it’s not full 5 stars is that it appears to be somewhat less sturdy and possibly easier to break/rip off compared, for example, to the old Schlager I had in place. The Lockey’s both halves/sides are connected and held against the door frame with two relatively small gauge screws, and furthermore there are black rubber spacers between each half and the door frame, presumably for weather sealing. These spacers effectively create a soft gap between the lock and the door frame, which could be straight forward to exploit by sliding a pry bar into it and ripping the lock off by breaking the connecting screws. For comparison, the old lock metal body was flush against the door frame, and the connecting screws were heavy gauge, making the whole thing considerably harder to compromise. The deadbolt itself is plenty sturdy and not a problem, and the weakness in this case seems to be in the way the lock body is mounted. So in my case, the Lockey provides more convenience and functionality, but a bit less security overall, which is fine for an outside gate, but could be an issue for other locations.

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  2. Perfect for the back gate of my home!

    T. Seaton (verified owner)

    I’m happy with the keypad entry. It was a great addition to my home. Good quality and can with stand humid temperatures.

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  3. Fantastic solution for a closed gate

    BB / Los Angeles (verified owner)

    This was a new product for my experienced locksmith to install. He was skeptical, because he’d never seen your brand before. We installed it on our gate which needed both sides accessed while adding security. My locksmith was very impressed with the product and found it very easy to install. We are extremely happy with GoKeyless!

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  4. Alan Blalock

    The 3210DC and 3230DC locks with the double sided keypad are excellent for use on gates to prevent un-wanted entry from either side. The locks install easy and are easy to set the code.

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  5. Arthur from Texas

    I am an architect, and therefore try to plan ahead more that a lot of construction people. I have not yet built the gate and installed the hardware. I have looked at the products, and they appear to be everything I hoped for.

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  6. Mike from Texas

    I recently purchased my second keyless gate lock from GoKeyless. I had purchased the first one – a Lockey 3210DC, several years ago, and have found that I couldn’t do without it. It has performed flawlessly, and weather has had no effect. So I ordered another one for my second gate. Ordering online was easy and it shipped quickly. Thanks again for a great product and excellent service.

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Customer Questions & Answers

  1. Q Do you have smart locks with this same capability? answer now
    Asked by PDenkins on January 19, 2021 1:18 PM
    Answered by the admin

    For an electronic lock that is also double-sided and can be used on gate applications, we would recommend a Kaba E-Plex lock or something similar. For options that will best fit your application, please contact our sales staff at 937-247-9327, option 1!

  2. Answered by the admin

    This lock can be used on wooden entry doors as long as the door is no more than 2 11/64 in. thick. 

  3. Answered by the admin

    Yes! This model does offer a Passage Mode function to keep the door unlocked until it is disabled again. 

  4. Answered by the admin

    This model is a deadbolt only as the bolt itself is the only mechanism on this unit that will secure your door. If you are looking for a lock with multiple locking points, please contact our sales staff at 937-247-9327, option 1!

  5. Answered by the admin

    This model does not feature any overrides for the deadbolt. However, these can be ordered with a mechanical key override! For more information, please contact us at 937-247-9327, option 1

  6. Q Can this lock be used with a vinyl fence? Gate border is 5" square. answer now
    Asked by Jimmy R Martin on April 15, 2020 11:50 PM
    Answered by the admin

    Yes, this model will work for vinyl, wood, or metal fencing. 

  7. Q Can this be used on a steel security storm door? answer now
    Asked by Deb Schoon on March 26, 2020 11:54 PM
    Answered by the admin

    It certainly can! Please keep in mind that this is a deadbolt and not a code entry handle. If you are looking for a similar double-sided handle set, please check out the Lockey 3835DC!

  8. Answered by the admin

    This is a purely mechanical lock and has no electronics to illuminate the keypad during the night hours. 

  9. Q Can each side have a different code? answer now
    Asked by Dan Whitaker on July 9, 2019 11:29 PM
    Answered by the admin

    Yes, each side has their own combination that can be set. 

  10. Answered by the admin

    It is a deadbolt so you will need to throw the deadbolt anytime you close the gate. If you would like something that locks behind you, you will need to go with a latching lock such as the 3230. 

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