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The Master Lock ProSeries 1177D is a commercial-grade, resettable combination padlock featuring a corrosion-resistant solid brass body and an ultra-tough octagonal boron-carbide shackle. With 10,000 possible combinations and no reset tool required, it offers customizable security with ergonomic dials designed for use in harsh conditions, including low light and with gloves. Its weatherproof design and deadlocking mechanism protect against prying, shimming, and cutting attacks, making it the go-to lock for professionals who demand reliability and durability backed by a lifetime guarantee.























| ASIN | B007UXUC1C |
| Additional Features | Keyless, Padlock |
| Best Sellers Rank | #4,934 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #20 in Combination Locks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Brass |
| Control Method | App |
| Controller Type | Jog dial |
| Customer Reviews | 4.3 out of 5 stars 1,659 Reviews |
| Finish Types | Polished |
| Global Trade Identification Number | 00071649165900 |
| Included Components | Unit^Instruction Guide |
| Item Dimensions | 1.27 x 2.25 x 3.43 inches |
| Item Type Name | Master Lock Padlock, ProSeries Set Your Own Combination Lock, 2-1/4 in. Wide, Brass, 1177D |
| Item Weight | 0.47 Kilograms |
| Item dimensions L x W x H | 1.27 x 2.25 x 3.43 inches |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 1177 |
| Manufacturer Warranty Description | Warranty |
| Material | Brass |
| Material Type | Brass |
| Model Name | Master Lock Padlock, ProSeries Set Your Own Combination Lock, 2-1/4 in. Wide, Brass, 1177D |
| Model Number | 1177D |
| Number of Pieces | 1 |
| Recommended Uses For Product | Security |
| Shape | Rectangular |
| Special Feature | Keyless, Padlock |
| Style Name | Lock |
| UPC | 071649165900 |
| Unit Count | 1.0 Count |
S**J
Great lock, strong and durable.
Very strong and sturdy, and it’s great option for anti theft. The fit is great, and easy to use and set up. Definitely a good buy. I’ve bought multiple, they tend to last for several years.
T**R
Impressive lock but not totally foolproof.
This is a hefty lock that can provide enough deterrence to discourage theft for many uses. But, locks can always be defeated, and a padlock can only withstand just so much pounding before it fails. If I needed a secure lock for a remote location, I would go to a good locksmith and discuss the requirements before choosing a lock. For my use, my gym locker was broken into and my wallet stolen. I bought this for more secure storage. But, unfortunately, the hexagonal locking loop was too big, so I had to buy a medium security Master Lock from a local store for still-good security that would fit.
M**L
Solid!
Solid and work really well. Gives me a piece of mind. The combo is pretty smooth and pretty easy to set your own code.
G**A
Sturdy lock.
Nice lock. Sturdy. The ad picture looks like you get 2 locks. It is only one though. I would change the picture to only one lock, so as not to confuse people. I thought it was two as shown in the photo. Bottom rubber a little flimsy. I like being able to set my own combination
M**T
Definitely worth the money to deter quick thefts
Have been using this as my gym lock (overkill, I know - but as I got my laptop stolen, I'm done screwing around) - it fits with very little clearance left in the lock hole (about the width of a human hair), so its a perfect fit. You cannot move it around or yank on it very easily. It is incredibly heavy and rather intimidating looking. The brass armor shroud around it is incredibly sturdy and does a good job of making life difficult for anyone with a bolt cutter. The boron alloy shackle is also much higher quality than the standard locks you find on the shelves, with a very true metallic feel. The combination are definitely on the stiffer side - they will not easily glide like tiny padlocks. In 3 months, I have not experienced the "sticking" issue, but the tumblers definitely prefer to be turned one way, which is not really a big deal for me. It is important to note that the lock only opens one way, and the dials will get easier to move with use, but they are STIFF. Personally, I like it as it reinforces the whole tough look of the lock. The rubber bumper, which I presume is to keep the lock from scratching whatever it is rubbing against, is flimsy and I lost it on the third use. Again, not a big deal. No padlock is going to be a foolproof solution in the world of sledgehammers, shotguns, and bolt cutters - but this intimidating looking lock definitely fits the bill to help persuade a would-be thief to perhaps move onto an easier target - (or at least convince them that bringing giant bolt cutters to a gym is too risky).
C**L
Some of these locks have a serious problem
As some others have noted, the lock can get stuck open in a situation where some or all the dials don't spin. This has happened to me twice with this lock. I researched what's going on and apparently an internal part called the hasp doesn't achieve the position it needs to be in. My lock is indoors and properly lubricated with Boeshield, and it still happens sometimes. I have fixed it by banging it on the concrete floor upside down and right side up, and I suppose the hasp slides into place and the wheels spin again, and the lock can be pressed closed. But it's definitely not the way you want the lock to be functioning. It's hard to find other brands of combination locks with the same attributes as this one, but I'm looking elsewhere, and this one is going in the garbage after a couple of months.
A**R
Great lock
I like it works good solid product
F**S
Perfect
Very sturdy and weatherproof. Great for fences.
E**K
Buen producto
Buen producto. Es mas grande de lo que pensaba para un locker
O**R
Rock solid - as expected
Very good for household security - I use it for my front gate and am very happy with it
B**E
Excellent lock, lubricate it
Always waiting to write a review till I've had product for a while. I've had this on my outside shed for over a year. It has seen all the weather elements and is still working as I hoped. One recommendation I have for folks with locks that see the elements is to spray WD40--12/34 or some other lubricant down into the lock mechanism. Best is when you have the lock open and spray into the open hole where the locking arm goes into the lock itself. You wouldn't believe the difference this makes in keeping your lock working good and the tumblers turning easily. Folks should do this on a combination lock or a key lock.......
C**N
Un des meilleurs
Pour en avoir testé plusieurs, un des meilleurs rapport qualité prix pour un cadenas à code.
V**N
TOP padlock!
Bought it because of the reviews. And not regret it.
Trustpilot
1 month ago
1 month ago