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Your cart is empty.The Master Lock 875D Heavy Duty Outdoor Combination Lock features a 2 inches (51mm) wide zinc body for strength and reliability. The 5/16 inches (8mm) diameter shackle is 1 inches (25mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The roller pin mechanism provides MAX protection against attacks. The shackle seal offers superior weather protection. The lock includes set your own combination convenience, without the need for a reset tool. The 4 digit dialing allows for thousands of possible numeric combinations. The Limited Lifetime provides peace of mind from a brand you know and can trust.
maritoyo
Reviewed in the United States on March 31, 2025
very easy to play with, can open in 2 minutes without knowing the combination
Carl Silver
Reviewed in the United States on February 10, 2025
Easy to set and keeps on working
Customer
Reviewed in the United States on April 24, 2025
I've had this for 2.5 years outside on my boat (freshwater) and while it has seriously rusted, it still works and the numbers rotate smoothly and it locks and unlocks as it should. It does not offer the absolute highest level of security - it is made largely of zinc so you could melt it, or try the combinations - but "locks keep honest people honest" as they say; if you need serious security then don't buy a $18 lock. Good value for the price.
Tim Waite
Reviewed in the United Kingdom on September 26, 2024
Great value heavy duty combination lock with brass finish.
Jacob Garza
Reviewed in the United States on June 22, 2024
Love this lock!
RedFox
Reviewed in the United States on June 15, 2024
Substantial. I have 2 on my outside gates.
WP Vancouver
Reviewed in Canada on June 11, 2024
This lock feels very durable and should last years. The only downside is that you have to close the lock before mixing up the combination. I personally like to mix the combination in my hand, then attach and lock the lock. A small thing, but bothers me.Overall the lock looks/works/feels great.
Lucia
Reviewed in the United Kingdom on October 10, 2024
Worked for a month then stopped closing
Jeff in RI
Reviewed in the United States on March 19, 2023
The first 5 months we had this lock it was securing a dinghy in salt water, getting repeatedly dunked. Whenever we used the dink, I'd blow the water out of the lock and spray in some WD-40. It worked fine. Then we used it to lock the ladder up to our boat which was stored outside. Constantly in the weather. Every month or two I'd spray the lock again. It's still working fine. As can be seen in the photos, there is some corrosion. The type of corrosion makes me think the body is die-cast which can be a more brittle metal. It will probably rot out faster than a brass or stainless lock would. But I expect to get at least another 3-4 years out of it. Overall, quite pleased for the price. Just be aware that outside it needs some help in the form of rust inhibiting lube.
roger j. bos
Reviewed in the United States on May 25, 2022
Once you compare this model to the less expensive version, you can see that this one is better built and smoother in operation. My older on stopped working due to exposure to the weather and basically you could open it without the combination, which is not good. Hopefully this more expensive model will stand up to time. Make sure to test it frequently to make sure it is locking as it should.
Psychic
Reviewed in the United States on October 8, 2022
Great lock that we use on all of our doors, we live in an area where you need to lock everything, so having a strong lock is very important to us. Heavy duty and great for all climates, we live beside the ocean and after 6 months so far there is no corrosion or rust on them. Also not jamming or anything either still. I would highly recommend this lock.
Enrique
Reviewed in Singapore on August 26, 2021
Item as described. Fast delivery. Well packed.
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