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  1. Padlocks
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  3. Universal Application Padlock
  4. Keyed Unique
  5. 9/32 Inch Diameter
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Master Lock Laminated Steel Padlock - 1-15/16" Wide - 9/32" Diameter Shackle - Blue Cover
Master Lock

Master Lock Laminated Steel Padlock - 1-15/16" Wide - 9/32" Diameter Shackle - Blue Cover

Part Number: ML312D
In Stock
$18.28
Retail:$20.19
You Save: 9%
Padlocks
ML312D - 9/32 Inch Diameter Master Lock Padlocks
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This heavy-duty padlock has a laminated steel casing, a hardened steel shackle, a blue weather resistant cover, and steel tumblers. The lock resists drilling and picking, and the dual locking levers make it tough to pry. Includes 2 brass keys. Great Prices for the best padlocks from Master Lock. Master Lock Laminated Steel Padlock - 1-15/16" Wide - 9/32" Diameter Shackle - Blue Cover part number ML312D can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (25)
  • Q & A (0)
  • Photos

Master Lock Padlocks - ML312D

  • Universal Application Padlock
  • Keyed Unique
  • 9/32 Inch Diameter
  • Master Lock
  • Steel

This heavy-duty padlock has a laminated steel casing, a hardened steel shackle, a blue weather resistant cover, and steel tumblers. The lock resists drilling and picking, and the dual locking levers make it tough to pry. Includes 2 brass keys.


Features:

  • Padlock helps secure your gear
  • Laminated steel lock body is durable and corrosion resistant
  • Blue weather resistant thermoplastic shell is designed to withstand the elements
    • Protects against moisture, dirt, and grime
  • Hardened steel shackle resists both cutting and weather
  • Dual internal locking levers provide extra pry resistance
  • 4-Pin lock cylinder with steel tumbers resists drilling and picking
  • 2 Brass keys included


Specs:

  • Overall dimensions when locked: 3" tall x 1-15/16" wide x 1" deep
  • Shackle diameter: 9/32"
  • Dimensions of opening with shackle closed: 1-1/16" tall x 9/16" wide
  • Limited lifetime warranty


Dimensions


312D Master Lock Laminated Steel Padlock - 1-15/16" Wide - 9/32" Diameter Shackle - Blue Cover





Ratings & Reviews

4.7

25 reviews
This heavy-duty padlock has a laminated steel casing, a hardened steel shackle, a blue weather resistant cover, and steel tumblers. The lock resists drilling and picking, and the dual locking levers make it tough to pry. Includes 2 brass keys.

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perfect



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Works great



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Great lock



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It's a lock.



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a little hard to open and close, it should wear in.



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The lock has a nice long shackle and opens easily but I have a lot of difficulty locking it



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Ordered these items on an extremely easy to navigate website. They shipped instantly!
This is the only place I will go for trailer supplies.



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The locks are heavy duty and I Iike having the lock closure since I use one for the outside of my garage. They arrived in a couple of days. I am very pleased with the product.



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Bought this to lock the hitch on our Airstream. Wanted a lock with a 5/16" shackle, this one has it.



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This Master lock was exactly what I was looking for. The etrailer website was easy to navigate. The product arrived in a reasonable time frame. I definitely recommend etrailer.



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I’m useing these to secure a generator to my RV and I need a very wide lock that I was unable to find anywhere. These locks are perfect for my particular needs and are very heavy duty. Timely delivery before a family trip to Yellowstone sealed the deal..



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Works well



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Great lock! it will work great with my brinks security cable to secure my bikes to my bike rack



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Hi Miranda, This is a picture of the Lock. The lock is the perfect fit for this application. Thanks for your help!



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had to replace the locks. they were on the trailer spare covered from exposure to snow and rain and the protective covers in place.I had to with much difficulty cut the lock off due to its rusting so badly it wouldn't open because of rust even after soaking 2 days in rust p
enetrater


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25

See what our Experts say about this Master Lock Padlocks

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  • Replacement Lock for a Thule Mountaineer 669ES Cargo Box
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  • Recommended Hitch Pin for the Carpod Walled, Folding Cargo Carrier # M2205-01-02
    The Carpod Walled and Folding Cargo Carrier does not come with a hitch pin clip. The basic hitch pin clips that you will need is part # PC3. For added security and to help deter theft you can use the Let's Go Areo Anti-Rattle Hitch Receiver Lock # 63232. If you were wanting to add some security to your cargo carrier, I recommend using the Master Lock Padlock # ML312D for when the top is closed.
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  • Hitch & Cargo Carrier For Food Truck
    That sounds like awesome ideas to enhance your food truck. The best that we can do is find a standard trailer hitch that can fit your trailer based on the dimensions you need. For example a hitch like # 13703 could work well for you as long as your frame is between 22 and 72 inches wide. In regards to any other enhancements like swing arms we don't build options like that at etrailer.com. Although we don't build custom carriers, you may want to consider a product like the Carpod Walled...
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  • Which padlock can be used on trailer door in the winter without freezing?
    While the Global Link Vise Lock for Cam-Action Door Latch # 295-000024 is a great solution to locking your trailer door latch, the key hole is exposed to the elements like most locks so it wouldn't be ideal for the winter months. You could remedy this by using lock de-icer. I think a better option is to use a weather-resistant padlock such as Master Lock Laminated Steel Padlock - 1-15/16" Wide - 9/32" Diameter Shackle # ML312D. It has a thermoplastic sleeve and lock cover to keep the elements...
    view full answer...
  • Locking Bail Pin for Handle on the Reese Elite Series 27K 5th Wheel Hitch
    In order to lock the handle on your Reese Elite Series 27K 5th wheel hitch, I recommend using the Master Lock Laminated Steel Padlock part # ML312D. This lock will replace the bail pin and allow you to keep others from tampering with the handle on your 5th wheel hitch. They do not make an exact replacement locking bail pin for this purpose but the above padlock will work well for you.
    view full answer...
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  • How to Prevent Locking of Cam Door Lock 305736
    The best way to prevent a (bad) person from locking your cam door lock on your conversion camper while you are inside it is to place a padlock like # ML312D on it yourself, before you retire for the evening. This will prevent an outside party from locking the door.
    view full answer...
  • Recommendations for Truck Bed Bike Rack for 2019 Ram 2500 with Ramboxes
    An over the tailgate solution like the Softride # SR26457 Shuttle Pad could be a good solution for you. It's relatively inexpensive, has a 6 bike capacity, and wouldn't require removing the front wheels, which is very convenient. The padded, felt-lined carrier protects both the bikes and the truck from being scratched. If you decided to go that route, you'll want to measure the available width of your tailgate. A solution like this is your best bet because options that clamp to the bed...
    view full answer...
  • Recommended License Plate Bracket & Padlock for Carpod Walled Folding Cargo Carrier M2205-01-02
    For a license plate bracket for use on the Carpod Walled Folding Cargo Carrier # M2205-01-02 you can use a product like the Optronics # LP55CB which includes a light. You'll need to supply the hardware to install it. For a lock you can use a padlock that has a 3/8-inch or smaller shackle, such as # ML312D.
    view full answer...
  • Is There a Master Lock Pad Lock that Can be Keyed Alike
    Hey Karl, we have the Master lock Padlock part # ML1KA that can be keyed alike which is pretty similar. It is 1-3/4 inches wide and has a 5/16 inch diameter shackle. Would that work for you?
    view full answer...

Do you have a question about this Padlock?


Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Written by:
Wilson B

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