






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.
๐ Lock in security, unlock your peace of mind.
The Master Lock 312TRI is a pack of three 40mm laminated steel padlocks featuring a hardened 7mm shackle and a blue weather-resistant thermoplastic shell. Designed for outdoor use, it offers superior protection against moisture and grime. Its 4-pin cylinder and dual ball bearing locking mechanism provide enhanced resistance to picking and prying. All three locks are keyed alike for convenient access, backed by a Limited Lifetime Warranty from a trusted industry leader.























| ASIN | B00004Y8CG |
| Additional Features | Weather Resistant |
| Best Sellers Rank | #179,298 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #444 in Keyed Padlocks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Blue |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.4 out of 5 stars 692 Reviews |
| Finish Types | Laminated |
| Global Trade Identification Number | 00071649093579 |
| Included Components | Padlock |
| Item Dimensions | 1.38 x 1.65 x 2.99 inches |
| Item Type Name | Keyed Padlock |
| Item Weight | 0.65 Kilograms |
| Item dimensions L x W x H | 1.38 x 1.65 x 2.99 inches |
| Lock Type | Key |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 312TRI |
| Manufacturer Warranty Description | Full Warranty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | 312TRI |
| Model Number | 312TRI |
| Number of Pieces | 3 |
| Recommended Uses For Product | Security |
| Shape | Rectangular |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Weather Resistant |
| Style Name | Modern |
| UPC | 071649093579 |
| Unit Count | 3.0 Count |
R**E
Nice keyed alike locks from a major brand
I think locks are mostly to keep honest people out. That being said, these locks are as sturdy and well made as one would expect. I have found that one of the key points is getting duplicate keys for your locks. Sometimes you need 3 or 4 keys for many locks. Hoping that the no-name brand of locks will have a commonly available key does not work for me. Iโll spend a little bit more on a name brand that I know I can get spare keys for.
M**N
Good in the rain
Had these locks on a trailer outside for 1 year without an issue.
D**S
Works as advertised
Works great. Just what I need for convenience in opening my doors.
G**G
Nice locks
Would like the metal loops to have been a little larger. They don't fit on everything. Water resistant but not water proof. Water comes out of the cap when removed following heavy rain. Like the price.
S**K
Cute and practical
This bundle comes with three locks, but only two keys. What I appreciate about these locks is they have an attached plastic covering over the keyhole. For me, this is super as I am using one to secure a water faucet lock guard in the front yard to safeguard against vandals and water theft. I often purchase Master locks because I trust their products. They are very durable. These do not disappoint. The swing arm moves smoothly and there is no struggle to snap the arm into place. Just what the doctor ordered!
P**O
Master Lock 312TRI
Key hole became rusted after approx. 2 weeks in the elements. However, it's still working (so far). The old yellow casing Master Lock I've had for over twenty years, shows no signs of rust and works like a charm. Not sure if this is a true Master Lock.
R**R
Awesome locks!
I like that all 3 locks have the same key. It comes with two keys which makes it convenient. I use them on my bikes. Nice and heavy duty! Love these!
M**E
As good as the old ones
Purchased a set exactly like the new ones about 20-25 years ago and they have worked great purchased the new set for my enclosed trailer and they are just as good as the old set havenโt had any issues with new set
T**M
Excelente producto
Muy buen producto
D**L
Only two keys
Only two keys are included. It probably makes sense since they are keyed alike, but you need a third key if you want to use them in different locations. It also is a bit risky if one key gets lost. Otherwise very strong, uses spherical locking detents so they can't be forced with shims and the rubber housing is very thick.
J**Y
Bought it for all outside gates
So far so good. Paid $44.08 for other buyers reference.
J**R
Great value
Locks exactly as advertised. They seem to be high quality. To be determined after further exposure to the elements
A**E
Number of keys provided does not match item description
Website states "Each padlock comes with 2 keys" but only 2 keys are provided for all three locks. I chose these locks specifically as I needed 6 keys, now I have to try and obtain more. The actual packaging says 2 keys, but it is not shown on the website. The locks are good quality, and apart from the shortage of keys, perfect for my needs.
Trustpilot
5 days ago
4 days ago