

🔐 Lock in your security, unlock your freedom.
The Master Lock 178D is a durable, weather-resistant combination padlock featuring a solid 2-inch zinc body and a hardened 5/16-inch steel shackle. Its customizable 4-digit code offers thousands of unique combinations, perfect for gym lockers, gates, and sheds. Designed for both indoor and outdoor use, it comes with a reset tool and is backed by a Limited Lifetime Warranty, ensuring reliable security that stands the test of time.























| ASIN | B0009V1WMA |
| Additional Features | Resettable Combination Lock |
| Best Sellers Rank | #3,024 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Combination Locks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Black |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.6 out of 5 stars 15,211 Reviews |
| Finish Types | Polished |
| Included Components | 1 padlock |
| Item Dimensions | 1.3 x 2.01 x 3.31 inches |
| Item Type Name | Set Your Own Combination Lock |
| Item Weight | 4.8 ounces |
| Item dimensions L x W x H | 1.3 x 2.01 x 3.31 inches |
| Lock Type | Combination Lock |
| Manufacturer | Master Lock |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Material | Zinc |
| Material Type | Zinc |
| Model Number | 178D |
| Recommended Uses For Product | Security |
| Shape | Square |
| Special Feature | Resettable Combination Lock |
| Style Name | 1 Pack |
| UPC | 354123436162 |
| Unit Count | 1.0 Count |
R**Y
Great for sheds.
This is a review of the Master Lock 178D Set Your Own Combo Padlock. I will do my normal list of specs-cool features and then list a summary as to my thoughts after using. -This is made of die cast metal and has a black finish to help protect it from the outside elements.) -It has a 2” wide die cast case and a 1” shackle. Diameter of the shackle is 5/16”. -Comes with 1 change key. -Operate by using a four digit number combination you set. -Unlike a lot of locks, this is a very well built solid lock designed for outdoor use. -To use, enter the combo and push down the shackle and then pull it up to unlock. Summary – I am using these on my two sheds. The combo is easy to set. You simply unlock the lock – open the shackle, insert the key – turn 90 degrees, set the combo of your choice and then remove the key. I really like this feature as I wanted my two sheds to have the same combo so I do not forget and for simplicity. The movement of the dials has a slight clicking and bump feel as you move the numbers vs. being an easy roll. (Might get smoother with time.) I like this as it is easy to lock your digits in and know they are aligned right. Whatever you do, do not forget the combo. The key is only for changing the code and will not open the lock. I am very happy with this lock and all master locks in general so far. Good make and reliable. Highly recommend.
R**O
Almost 7 years later still going strong
I beams out in my yard and noticed the two padlocks on my gates. I open them about 4 or 5 times a year and don’t oil the padlock or do any maintenance. They’re just left out in the weather year round and they always work. When I saw them today I realized it had been a long time since I bought them and thought how nice it is that a product actually lasts and I don’t have to think about it ever, much less replace it. So I looked it up and I bought both in August 2018 and here it is almost 7 years later and they still work great and don’t show any signs of wear besides some minor fading. That is what I call a fine product and there aren’t too many out there nowadays since everything became disposable, so I wanted to write this long overdue review since it’s so remarkable to me. Now I will say, they cost $9.49 back in 2018 so the price has doubled, which isn’t great, but that’s the way of things too nowadays so there’s no sense complaining I’m just really happy there are a few solid products still being made out there, and this lock is definitely one of them.
E**Z
Good product
Good product and quality
L**X
Durable & easy to use
Have purchased 20 + of these locks. Love the ability to customize combination. Secure and Durable. Only issue if locks are are used outside in upward or harsh weather conditions numbers wear out and begin to stick.
G**C
I bought two to replace old versions of the same product
We lock our front and back gates with these locks. They are in the elements, unprotected from sun/rain. The last ones (same model) were in service since 1994(!), and were good reliable easy to use locks. They were 'used' (unlocked/locked) several times a week. I decided to replace them because the numbers on the combination wheels were becomming a bit corroded and difficult to read, they were getting more difficult to turn (not that bad though), and the lock mecahnism wasn't working as well as it used to. Sometimes the lock didn't latch when locking, and you had to bang it on the gate to get it to latch. I tried lubricating the locks with triflow, which helped for a couple weeks, but then became stingy again. I thought that after 19 years, I could afford to buy a couple more. So I've been using the two replacements for a month now, and they're great. The numbers are easier to read, the wheels are easy to turn, and the lock mechanism works perfectly. I assume these will last ~20 years like the last set. By the way, it's a bit counter-intuitive, but to open the lock, set the dials to the combination, then push the shackle *IN* to disengage the lock. Some people set the number, then pull, but that's not it works.
H**N
Works like a charm
These are pretty solid. Like how I can set my own combo. I've purchased about 6 of these over the years. After a season outside, the numbers get a little hard to turn. Just hit it with a little wd40 and you're good for another season
T**G
Excellent price on a standard product
Excellent value for this standard Masterlock brand product. It is exactly what can be found in retail big box home improvement stores at a better price. Very easy to set your own combination following easy instructions. Handy to keep combo's the same. Hefty lock at the upper end of size/durability of padlocks.
T**J
Nice lock
Nice lock
Trustpilot
1 month ago
2 weeks ago