bing tracking image
  1. Padlocks
  2. Master Lock
  3. Hidden Padlock
  4. 3/8 Inch Diameter
Master Lock Hidden Padlock - 3/8" Shackle Diameter - Chrome
Master Lock

Master Lock Hidden Padlock - 3/8" Shackle Diameter - Chrome

Part Number: ML6271
In Stock
$36.12
Retail:$47.34
You Save: 24%
Padlocks
Add to cart
Padlocks ML6271 - 3/8 Inch Diameter - Master Lock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Videos

Need help with installation?
Locate installers near me
This high-security, hidden-shackle padlock features a 2-7/8" wide lock body that conceals the 3/8" diameter shackle to prevent theft. Great Prices for the best padlocks from Master Lock. Master Lock Hidden Padlock - 3/8" Shackle Diameter - Chrome part number ML6271 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (19)
  • Q & A (0)
  • Videos (1)
  • Photos

Master Lock Padlocks - ML6271

  • Hidden Padlock
  • 3/8 Inch Diameter
  • Master Lock

This high-security, hidden-shackle padlock features a 2-7/8" wide lock body that conceals the 3/8" diameter shackle to prevent theft.


Features:

  • Reinforced, 2-7/8" wide lock body conceals shackle to prevent theft
  • 3/8" Diameter shackle on back of lock body
  • Zinc die cast lock body for durable exterior
  • Boron alloy shackle for increased strength
  • Chrome color


Master Lock Hidden Shackle Lock

Master Lock Puck Lock

Measurements:

  • Overall lock width: 2-7/8"
  • Shackle dimensions:
    • A: 3/8" (10mm)
    • B: 19/32in (15mm)
    • C: 1-23/32in (44mm)


6271 Master Lock - 2-7/8" Hidden Shackle Puck Lock - 3/8" Diameter - Chrome





Video of Master Lock Hidden Padlock - 3/8" Shackle Diameter - Chrome

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Checking Out the Master Lock Hidden Padlock

Ellen: Hey everybody, it's Ellen here at etrailer.com, and today we're going to be taking a look at the Master Lock Hidden Padlock. This is going to be a very hard to remove padlock for any would-be thieves. But it's also going to keep everything secure for you.It's made of a durable zinc die-cast lock body, still have a very durable exterior. And then the shackle is made of a boron alloy, so it's going to inaudible 00:00:30 some increased strength. It comes in this nice shiny chrome color, so it's highly visible, easy to spot from across the parking lot or across the way, so people know that your stuff is locked up.Our lock body is reinforced, helps to conceal that shackle and make it pretty much impossible to cut off. As long as you can't get access back to that shackle portion, it's pretty hard to remove it if you don't have the key.

It comes with two keys to get that shackle taken out.If this ever becomes damaged, you can actually replace that just by removing that little bolt there. And there are replacement shackle kits available here at etrailer.com. You can also pick up a hasp to go with this to mount onto your trailer, maybe mount onto your workshop, anything that you want to lock up with this lock. That part number that you can find here at etrailer.com is ML-770. And that will mount that up.As far as the dimensions with this, overall, it's two and seven-eighths inches in diameter.

At the thickest portion, it's about 1.5 inches wide. The narrower portion here on the other side, it's about 1.25. The shackle measures three-eighths in diameter, or 10 millimeters. The distance of this little cutout here, top to bottom, is about 19 and thirty-seconds, or just about five-eighths. And then the width will be one and 23 thirty-seconds inches, or pretty close to one and three-quarter.Overall, I think this is going to be a great security option for anything that you want to keep locked up.

And that's going to do it for our look at the Master Lock Hidden Padlock.

Ratings & Reviews

4.9

19 reviews
This high-security, hidden-shackle padlock features a 2-7/8" wide lock body that conceals the 3/8" diameter shackle to prevent theft.

by:

Great lockI have 6 and they are all worth every penny



by:

Fast shipping and excellent product. Thank you.



by:

love it



by:

Excellent product opening a little small. Had to bend my latches



by:

Great locks and great company would buy again from them



by:

Très satisfait du produit qui me rend en sécurité pour mon besoin



by:

Great Lock. Perfect for Cargo Trailers



by:

Products were as described and as expected. They arrived very quickly. I personally like the communication was over and above



by:

Wish I bought 3 that were keyed alike. not sure if that is possible I could have got the free shipping if I added 2 more but no way of telling if they are keyed alike. Love it!



by:

I needed 5 locks keyed alike and they ordered them for me , it will be so much easier with just ONE key , Thanks



by:

This is a very nice lock, and was exactly what I needed to secure my enclosed trailer with barn door on my cross country travels.



by:

Absolutely Excellent! High Security, Hidden Shackle - MASTER LOCK! HARDENED Steel Body! Easily Re-Keyed, So You Don't Need 27 Different Keys To Secure Your Job Site, Or Storage Yard!



by:

Excellent product. I purchased it to work with matching hasp. It worked great, I wish this particular lock had a wide enough opening to work on the factory rear latches on my trailer as well.



by:

Lock appears to be great quality. Very heavily constructed. Also, item was shipped the same day, and received a couple of days later. I believe the lock will do the job of securing the door on my cargo trailer. Thanks for excellent product and service.



by:

The product was exactly what I needed to protect the trailer / hauler I transport my 2011 Roush Stage 2 convertiable in. Revcently, in the storage facility I keep the hauler, someone damaged the door hasp in attempts to enter it. No entry was gained but now, no attempt will be made, simply because one can not get to the locking hasp .
Thanks for the fat shippinf and reasonable pricing !!



by:

It is a similar lock that I have from etrailer.com. Only reason did not give 5 stars is the keys are hitching a bit. Hopefully some dry lube will solve the matter. This annoyance is more a quality control issue from Masters than anything else. Glad the package was opened to make sure the keys worked in the lock. Thank you George for your due diligence.



by:

Product operates like advertised. Works great and no longer the weak link in locking my bed topper doors. Will probably pick up #770 latch unit if advisable to fit my doors



by:

Great lock for doors on Semi trailer. Should work with various hasps too.



by:


19
19

See what our Experts say about this Master Lock Padlocks

  • Available Space Behind Shackle on Master Lock Hidden Padlock
    There is approximately 1/2" of space behind the shackle on the Master Lock Hidden Padlock # ML6271.
    view full answer...
  • Can Puck Lock Be Used with Blaylock EZ Lock Trailer Coupler Lock # BLTL-33
    The Blaylock EZ Lock Trailer Coupler Lock # BLTL-33 is designed to work perfectly with a standard padlock, but I think the typical opening size on the back of a puck lock will be a bit too small to fit over the end of its pin/shank. The pin/shank on this lock has a 3/4" diameter, while for example the opening on the Master Lock Puck Lock # ML6271 we have available has a height of just 19/32", which wouldn't allow it to mount over the pin. Your best option is going to be with something...
    view full answer...
  • Can the MasterLock Hidden Padlock Be Ordered Keyed Alike
    I may have a solution for you, but the Master Lock Hidden Padlock part # ML6271 cannot be ordered keyed alike. However, we do have some heavy duty padlocks with a 3/8" shackle that can be keyed alike that can provide a comparable solution. I recommend looking at the Master Lock Laminated Steel Padlock- 1-15/16" Wide - 3/8" Shackle # ML312KA, which is also a durable padlock option, but doesn't have the hidden design for the added layer of theft protection. This is available to keyed alike...
    view full answer...
  • Recommended Padlock For Areas With High Amounts Of Vandalism And Or Theft
    The "hidden" in the Master Lock Hidden Padlock # ML6271 is referring to the shackle/bar being fully hidden from view and is completely inaccessible when the lock is attached and secured. This makes it significantly more difficult to remove than a standard lock and is highly recommended. Especially if you are seeing a lot of vandalism and or thefts in your area. I do have to mention, though, that with the correct skills, time, and patience, no lock is unpickable. However, this will definitely...
    view full answer...
  • How Does Master Lock Hidden Padlock # ML6271 Lock
    We don't have a picture of the backside of the Master Lock shackle lock part # ML6271 (yet) but I can describe to you how it works. Basically there's a cut out section on the backside that has a recessed and retractable 3/8 inch pin that would fit through a hole when locked. Since this pin is recessed it's basically impossible to attack from a thieves point of view.
    view full answer...
    Image 1 for
  • Is There a Master Lock Padlock Available In a Diamond Plate Finish?
    Currently we only have the Master Lock # ML40D in its current finish. We do offer a Hidden # ML6271 version but I do not believe this is the exact style you are looking for.
    view full answer...


Info for this part was:

Employee Tyler C
Edited by:
Tyler C
Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Video Edited:
Kathleen M
Employee Erin H
Written by:
Erin H

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.


<