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MLK5400D Thumbnail Locking Combination 5 Key Steel Box, 3 1/4w x 1 5/8d x 4h, Black/Silver
# MLK5400D
Stock: 647
$39.42 /EA View Item
MLK1534D Thumbnail Password Plus Combination Lock, Hardened Steel Shackle, 2 1/2" Wide, Silver
# MLK1534D
Stock: 584
$11.26 /EA View Item
MLK1500D Thumbnail Combination Lock, Stainless Steel, 1 7/8" Wide, Black Dial
# MLK1500D
Stock: 3,837
$6.54 /EA View Item
MLK120T Thumbnail Three-Pin Brass Tumbler Locks, 3/4" Wide, 2 Locks & 2 Keys, 2/Pack
# MLK120T
Stock: 1,802
$6.72 /PK View Item
MLK7D Thumbnail Four-Pin Tumbler Lock, Laminated Steel Body, 1 1/8" Wide, Silver/Blue, Two Keys
Stock: 866
$7.40 /EA View Item
MLK1590D Thumbnail Set-Your-Own Combination Lock, Steel, 1 7/8" Wide, Assorted
# MLK1590D
Stock: 125
$9.32 /EA View Item
MLK5401D Thumbnail Locking Combination 5 Key Steel Box, 3 1/4w x 1 1/2d x 4 5/8h, Black/Silver
# MLK5401D
Stock: 706
$34.02 /EA View Item
MLK175D Thumbnail Resettable Combination Padlock, 2" Wide, Brass
# MLK175D
Stock: 945
$18.74 /EA View Item
EXCSRSLCKKIT Thumbnail Smokers' Oasis Lock Kit, 48in Plastic-Coated Steel Cable w/Lock/Key
Stock: 31
$30.66 /EA View Item
MLK1500T Thumbnail Combination Lock, Stainless Steel, 1 7/8" Wide, Black Dial, 2/Pack
# MLK1500T
Stock: 1,422
$11.23 /PK View Item
KMW64670 Thumbnail Portable Combination Laptop Lock, 6ft Carbon Strengthened Steel Cable, Black
# KMW64670
Stock: 211
Must buy in multiples of 5
$31.62 /EA View Item
KMW64068 Thumbnail Laptop Computer Microsaver Security Cable w/Lock, White Cable, Two Keys
# KMW64068
Stock: 160
Must buy in multiples of 10
$58.34 /EA View Item

Latest Product Q&A

How to change the code?
asked by Shan Green on September 21, 2018
1 vote

Instructions are included with the purchase of the item. 

Those instructions can also be seen here.

answered by Ashlin ( on September 21, 2018
0 votes
I bought a home that has a key box and no one seems to know the combination. Anything I can do?
asked by Bob Cornett on December 28, 2017
0 votes

Resettable combination locks have a combination that is assigned by the owner of the lock. Therefore, Master Lock does not have record of the combination that the owner set. The lock cannot be reset unless it is in the open position. If your lock is attached to something, you will need to call a locksmith for removal. 

To set a new combination: The initial combination is set at the factory to 0-0-0-0. 1. Open the compartment door (see instructions above) 2. Push the reset lever left and down. The lever remains in this position 3. Rotate dials to your desired combination 4. Push the reset lever, up and right, back to the original position 5. Close the key storage compartment door 6. Scramble the combination dials to lock the door and conceal your combination (A) 7. Close the shutter door (B).

answered by Connie ( on December 29, 2017
0 votes
How many keys does this lock come with? I need a minimum of two keys per lock. Also, I need to know the dimensions of the lock. I have specific needs. The picture looks like the dimensions might be what I need . . . but it's just a picture.
asked by Robert on August 29, 2017
0 votes

The American Lock A5202GLN Padlock - Keyed Different - Steel Body comes with 1 key. The shackle size measures .31" in diameter, 3" in vertical clearance, and .75" in horizontal clearance.

answered by Connie ( on August 29, 2017
0 votes
What is the length of the chain on the Padlock With Attached Chain?
asked by Jeff on November 28, 2016
0 votes

The manufacturer does not specify a length for the chain attached to the Padlock.

answered by Connie ( on November 28, 2016
0 votes
forgott my combination what do i do now
asked by Anonymous on January 24, 2014
1 vote

Thanks for your question about the Set-Your-Own Combination Lock by Master Lock.


This unique lock is the first of it's kind as it is a resettable combination lock using a reset tool that will allow to change the combination as many times as you want.  Here is a link to the Master Lock website where you can view a video tutorial on how to reset your lock.  I am also including the instructions below.  If you are still unable to reset your lock with these instructions you will need to contact the manufacturer directly at 1-800-308-9242.  The manufacturer product number is 1590D.  NOTE:  Once the lock has been set, there is no way to open it without the combination.


Reset Instructions


1.  Open lock by turning to the preset combination by:

  • turning right to the first number or letter.
  • turn left, passing the first number or letter and then stopping on the second number or letter.
  • turn right to the third number or letter

2.  Pull up on the shackle to open it.

3.  Once the lock is open insert the reset tool into the open hole so that the Master logo is facing the side of the lock.

4.  Press it all the way down until you hear and feel it snap into place and the collar of the reset tool is resting on the hole.

5.  Turn the tool 90 degrees in either direction until the Master logo is facing you.

6.  To enter new combination, choose any three numbers or letters for your new combination such as your initials or your birthday.  You can even use letters or numbers more than once.

7.  After selecting your new combination:

  • turn the dial three times to the right to clear out the old combination.  Then, turn right to the first letter or number.
  • Next turn left, passing the first letter or number and then stopping on your second letter or number.
  • Turn right to your last letter or number.

8.  Finish by turning the reset tool back 90 degrees so the Master logo is once again facing the side of the lock and then remove it


Congratulations, your new combination has been set!  Go ahead and try it out.  You can change your combination as many times as you want by following these instructions.  Remember to keep your combination in a safe place or at for free.


I hope you have found this information helpful and informative.  Remember, On Time Supplies carries over 40,000 office products at discounted prices with most items ready to ship the same day.  We pride ourselves in offering world-class customer service and look forward to serving you.



Have a great day!








answered by On Time Supplies (Retailer) on January 24, 2014
0 votes
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