Set Your Own Combination Padlock, 4 Pack, Silver 643EC4

I bought this product several years ago and it worked well. However, I lost the lock and order a new one about two weeks ago. The new one was a dud. I used a couple times successfully. However, the third time I used it the lock seized up and I was unable to open it. The timing was pretty bad because I just got out of the shower and had all my clothes and valuables in the locker. I had to head to the gym front desk in a towel and slippers. I was afraid I was going to have to walk home in a towel and slippers and hope that I could get into my house without keys and cellphone as the gym was getting close to closing. Luckily the gym staff was able eventually open it by using bolt cutters. Now I am on the market for another lock and afraid of getting caught "naked" by buying another dud lock. Wish these locks could be more reliable, not sure what product to buy, any recommendations would be appreciated.

I'm writing to express my extreme disappointment with the recent purchase of a Master Lock. As a consumer who relies on the security of locks for storage units and other valuables, I was dismayed to find that the lock I purchased failed after only a few uses. Despite inputting the correct combination, the lock simply refused to open, leaving me frustrated and inconvenienced. This isn't the first time I've experienced such a problem with Master Lock products, and it's disheartening to see a brand that's supposed to signify security and reliability fall short in such a significant manner. Having encountered similar issues with this style of lock previously, I can't help but question the overall quality and durability of Master Lock's products. It's particularly frustrating to find oneself locked out of a storage unit or other important belongings due to a faulty lock. I urge Master Lock to seriously reconsider the manufacturing and quality control processes behind their products. As a customer who values security and reliability above all else, I expect better from a company with such a reputable name. In conclusion, I must say that this experience has left me deeply dissatisfied with Master Lock, and I'll be looking elsewhere for my security needs in the future. I hope that my feedback will prompt some much-needed improvements in your products and services.

Great for the price. Easy to use and seems sturdy

I don't understand why there's so many reviews of people Unable to open their locks. These locks require you to set your own combination. The only way they won't work properly is if you do not follow the directions. Please read the instructions inside the packaging to set your own combination correctly. I ordered 2 master locks. I followed the instructions exactly and have not had any issues. I opened and closed mine 20 times each upon receiving my locks and setting my combo. No issues at all because I read the instructions. I got these locks for my pelican tool box at work. These are not for security but for privacy. These just detur people from easily taking my tools. Could easily be broken off if you wanted to. But I think they're slightly better than the other cheaper options on Amazon. Good quality for price

A good lock for a reasonable cost.

Fue excelente

I bought my first Master Lock 643D in June 2025. In less than 6 months of intermittent use on a gym locker, I was stranded in a locker room straight out of a shower with a lock that wouldn’t open. After repeated attempts by more than just myself, I had to traipse into the common area of the gym in just my towel and ask an employee to come with their bolt cutters to give me access to clothes,car keys, money and my phone. I know there was no confusion with the combination as it was my husbands birthday and we’ve been married for 40 years - it’s a date I remember. I wrote this all off to a fluke because it was a Master lock… always been considered the workhorse of personal locks. And if you can’t trust Master Lock to keep your stuff safe, who can you trust?!?! Foolishly I ordered another. This one failed after less than 60 days. All hail the bolt cutters! Next time I buy a lock, it will be any brand but Master. What do they say? “Fool me once, shame on you. Fool me twice, shame on me!”

Pros: - Simple to use - Good value what you get - If you wear running shorts you don’t have pockets for a key but with this lock no need to worry - Size is not too small - You can change the code whenever you want Cons: - If you forget the code you’re screwed

3 sur 4 se sont bloqués. Obligé de les couper.

Bought this for a backpacking trip through Europe to use on hostel lockers. Worked perfectly. Did not encounter a single latch that this didn't fit perfectly on. Combination lock was perfect, since I feared losing a key. Found it tricky to open the lock in the dark since I couldn't see the dial, but then I decided to scramble the combo in a specific pattern, so I could align them by memory. This lock is not the absolute most secure option—obviously!—but it's perfect for a quick lock up and looks solid enough to prevent thefts of opportunity.

These worked out perfectly. Purchased for my son to take to basic training. He was able to create the code he could remember and able to access in hurry.

ottimo prodotto, robusto. l'archetto è resistente, quando è chiuso non ha gioco, si salda perfettamente. la rondella di protezione sopra la chiusura é una ulteriore garanzia.

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