











🔐 Lock in security, unlock your freedom.
The MASTER LOCK Heavy Duty Combination Padlock offers a robust, weatherproof design with a stainless steel body and a boron-carbide shackle that’s 50% harder than standard steel. Featuring a resettable 4-digit combination with 10,000 possible codes, it eliminates the need for keys while providing high-level security against bolt cutters and drills. Ideal for both indoor and outdoor applications, this padlock is backed by a limited lifetime guarantee, making it a reliable choice for securing sheds, trailers, storage units, and more.









| ASIN | B00HUWZRS6 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 3,616 in DIY & Tools ( See Top 100 in DIY & Tools ) 23 in Combination Padlocks |
| Colour | Silver/Black |
| Customer Reviews | 3.9 3.9 out of 5 stars (4,599) |
| Date First Available | 16 Jan. 2014 |
| Finish | Zinc |
| Included Components | 1 padlock |
| Item Package Quantity | 1 |
| Item Weight | 310 g |
| Item model number | M40EURDNUM |
| Manufacturer | Master Lock |
| Material | Stainless Steel |
| Number of Pieces | 1 |
| Part Number | M40EURDNUM |
| Product Dimensions | 9.3 x 7 x 3 cm; 310 g |
| Shape | Rund |
| Size | 9,3 cm x 7 cm x 2,3 cm |
| Special Features | Anti-Drill, Cut Resistant, Passcode Unlock, Resettable, Weather Resistant |
| Style | Disc Padlock |
O**S
Does the job well
A very good and strong padlock
N**E
Easy to set the new combination, very secure design.
These are the best value padlocks I have found. They're so solid, I bought them for the garden sheds to replace the key ones since multiple people in the house use them. Being able to set the combination is a handy feature, I could set them to something all the users can remember. I think you would need a grinder or something to hack off that lock because the design is too secure for an opportunist. It's only been in use for a few months now and there is no sign of rust or weathering, I'll update the review if that changes, but so far it's weatherproof.
D**G
Packaging !
Never seen package like this before - 15 minutes entry time ! You need to unlock it, before you can take it off the packaging ? (Stops thieving from shop displays maybe) After discarding the loose rubber facing, and filing off some sharp edges, we have a very good lock. Love the way the turning dials are easily accessed from front and back, and the large gate for cables. Robust enough to withstand a "two spanner" attack, but unsure if the reset key may provide a way in. The outside SS cover was very smooth, but inside corners are sharp and hinder the clasp opening. Feels like good solid protection for items inside my garage.
D**N
Gives locks a bad name
Master lock review As soon as I opened the package I felt it was a gimmick. It might deter criminal people with its appearance and appeal to those wanting a strong practical lock, but it’s probably the worst lock ever built for the user. I’ve designed and manufactured security devices so appreciate many aspects of security, therefore my opinion comes from experience. Firstly if a lock is awkward to use then you’ll either not use it or it’ll not work properly. Accessing the combination barrels to set the code is with great difficulty. Wet fingers can’t get a firm grip because of the recess and tight tolerances; even after removing the plastic trim. The barrels are extremely difficult to turn and accurately align. The mechanism is simply poor quality, shoddy and clunky. The casing invites access and is badly finished. The code setting key is like the lock casing, badly pressed metal and fiddly to insert properly. What happens when you can’t find the key; more junk? Other combination locks use built in mechanism’s which can’t be lost. I can’t comment on the strengths of the lock because I won’t use it; as a lock. From a distance it might deter some although others might want to test their skills; most combination locks are easy to open with practice. For what it cost it’s a time wasting device which should only be used on low value items. The longer a lock takes to bypass the better it’s security. Out of professional courtesy I won’t grade this lock There are plenty of combination locks for similar money that are vastly better quality, stronger and easier to use, I recommend you choose them.
D**L
Happy
Very good
A**R
Will do the job but a poor product.
I'm not old but I struggled to open the back to reveal the combination then struggled to open the lock despite setting that number. Could not read the instructions on how to change the combination because the writing is too small so had to go online but struggled to open the lock again. The numbers don't actually click into place. Got there eventually. Unfortunately I cannot recommend this product. There must be better and easier locks out there.
P**V
Very solid, looks great quality!
Seems very solid, it’s easy to use, very straightforward instructions, size is good, look good, I do believe that would be weatherproof, the time would show, it’s locking the garage door at the moment, does the job!
B**G
Good quality for the money
Easy to enter your own code with supplied key. I bought 2, looks like a hole for oiling is easy to get to. Happy.
E**A
Absolute trash, numbers have become unreadable and the combination wheels are binding. Rust always showing , all thos after 1 month in use. Do not buy for outdoor use
J**E
Das Schloss sehr massiv und schwer. Das empfinde ich als gut und angenehm. Es hat jedoch einige Zeit gedauert bis ich verstanden habe wo der Zahlencode zu finden ist. Zusammen mit der stabilen Kette, die ich gekauft habe ein sehr sicherer Schutz.
R**S
Very solid, heavy duty lock. Comes with a key (don't loose it!) to reset the combo when you need to. Number dials are tough to turn, but I take that as a sign of it's robustnesss--if you have weak fingers, maybe not the lock you want.
C**N
Super lucchetto molto sicuro;robusto combinazione anche interfacciabile con il servizio cloud on line del produttore;Facile utilizzo fornito con con piccola chiave per cambio sicuro del codice.
K**I
Başarılı kilit, köy evinin bahçe kapısı için aldık. Sizi gerçekten korur. Ama amazonda 560 tl den girdi fiyatı iade ettim en son 360 tl ye aldım. Neredeyse yarı fiyata. Buna dikkat etmek lazım.
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