Lockey 3230 Marine Grade Latchbolt
Keypad Push-Button Combination Keyless Entry Door Lock

Regular Price: $145.99  $135.93
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3230 Marine Grade Latchbolt

Keyless Key Pad Combination Entry Door Latchbolt Lock

High-Security Model (no key override option)

MADE FOR HARSH, SALT-WATER ENVIRONMENTS! If you are looking for a heavy duty single-sided latchbolt lock that is made for salt water environments, then take a look at this one. This lock is teflon coated to resist salt water and blowing sand.

Our special Teflon finish, Marine Grade, protects your lock from harsh salt water environments as well as corrosion.

If you want a single-sided lock which will stay open unless you manually lock it, see the 3210 Marine Grade Deadbolt Lock.


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details, dimensions, & installation instructions:


  • Comes with a Manufacturer's Lifetime Warranty.
  • Hacksaw-proof, bump-proof and unpickable.
  • Never again worry about lost, stolen or copied keys.
  • AC power, wires, or batteries aren't needed--this lock is completely mechanical. Therefore, power failures don't affect lock.
  • Easy installation on standard doors.
  • Mechanical reliability.
  • Completely weatherproof finishes. Be sure to select the Marine Grade finish for salt-water environments.
  • And best of all, the first time you change the combination, this lock will pay for itself by saving the cost of a locksmith.

3210 Double Sided Marine Grade Keyless Dead Bolt Lock Satin Chrome on Gatebox

Setting your Secret Code

Please note this lock is shipped with 7 red (code) and 10 blue (non-code) tumblers. This allows for a 5 digit code. If you would like to use more or less letter/numbers, please add PT05 Tumblers to your cart.

Want us to set your initial secret code? Simply select the "Custom" option under the Initial Secret Code section below and enter your desired custom code (no repeating digits) in the text box. Your code can be anywhere between 3 and 5 digits.

Lock Features

  • This is a latchbolt lock, which means it locks automatically when the door is shut.
  • Marine Grade finish to protect from salt-water environments.
  • Comes with a 2 3/4" or 2 3/8" backset. An adjustable backset upgrade is available for a small fee. If you are planning to use this lock with our PT01 Lockey Gate Box, be sure to order the 2-3/8" deadbolt.
  • This lock can be used on doors from 1-3/16" to 2" thick. If your door is between 2" to 5" please order the 3000 Series PT12 Extension Kit.
  • Covers a 2-1/8" hole.
  • This lock can be changed from right to left hand doors


This replaces or can be used with your existing deadbolt, latchbolt, or dummy lever. Click to view the Installation Instructions that come with each purchase.

Locking and Unlocking

Using all our keyless digital locks is quick and easy. This is a latchbolt lock, which means it will lock automatically when the door is shut.

To unlock, simply type in your secret code on the keypad and turn the knob to retract the latchbolt. You'll be amazed at how easily it works!

Lock Dimensions

3230 Marine Grade Latchbolt

Keyless, Key Pad, Combination Entry Door Deadbolt Lock

Outside Lock Body (without knob)
6-1/4 in
1-3/4 in
7/8 in
Outside Lock Body (with knob)
6-1/4 in
1-3/4 in
2-1/8 in
Inside Lock Body (without knob)
5-1/4 in
1-3/4 in
1-3/4 in
Inside Lock Body (with knob)
5-1/4 in
1-3/4 in
2 in
Outside Knob
1-3/4 in
1-1/4 in
Inside Knob
1-7/16 in
1-7/16 in
1-1/4 in
Trim Plate
7 in
2-1/2 in
1/4 in
Strike Plate
1-1/2 in
2-3/4 in
1/2 in

Note: If you are going to install this lock underneath an existing dead bolt, you will need at least 4-5/8 inches from the bottom of the dead bolt down to the center of the large 1 inch hole for this lock.


3230 Marine Grade Latchbolt

Keyless Key Pad Combination Entry Door Latchbolt Lock

High-Security Model (no key override option)


Please choose the option(s) you want, then click ADD TO CART below:

Lock Color:

Satin Chrome - Marine Grade



Note: for installation on a gate where there is no mounting surface. Click here for details.

No, thanks

Numbers & letters can only be used once (1234 is ok, but not 1123 or 1213).

Initial Secret Code:


Google Product Category:

Hardware > Locks & Locksmithing

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