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The Master Lock 142DCM is a compact, blue vinyl-covered aluminum padlock designed for indoor and outdoor use. Featuring a 40mm corrosion-resistant body, a hardened steel shackle for cut resistance, and a 4-pin cylinder with dual locking levers for enhanced pick and pry protection, it’s ideal for gym, school, or storage lockers. Lightweight yet durable, it offers reliable security backed by a Limited Lifetime Warranty.























| ASIN | B00004Y8C7 |
| Additional Features | Padlock, Padlock with Key |
| Best Sellers Rank | #5,434 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Keyed Padlocks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Blue |
| Control Method | App |
| Controller Type | Hand Control |
| Customer Reviews | 4.7 out of 5 stars 4,364 Reviews |
| Finish Types | Polished |
| Global Trade Identification Number | 00071649002304 |
| Included Components | 1 keyed padlock, 2 keys |
| Item Dimensions | 0.1 x 1.57 x 2.52 inches |
| Item Type Name | Covered Aluminum Keyed Padlock |
| Item dimensions L x W x H | 0.1 x 1.57 x 2.52 inches |
| Lock Type | Key Lock |
| Manufacturer | Master Lock |
| Manufacturer Part Number | 142DCM |
| Manufacturer Warranty Description | Full Warranty |
| Material | Alloy Steel , Aluminum |
| Material Type | Alloy Steel, Aluminum |
| Model Name | 142DCM |
| Model Number | 142DCM |
| Number of Pieces | 1 |
| Recommended Uses For Product | Security |
| Shape | Rectangular |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Feature | Padlock , Padlock with Key |
| Style Name | Padlock |
| UPC | 071649002304 |
| Unit Count | 1.0 Count |
A**.
Light and secure
5.0 out of 5 stars Perfect little gym locker lock — super small, lightweight, and clips right onto my AirPods case! I grabbed this Master Lock Blue Vinyl-Covered Lock specifically for my gym bag routine before work, and it’s exactly what I needed. No more digging through my bag for a bulky lock or worrying about losing the key — this thing is tiny, feather-light, and makes securing my stuff effortless. Why it’s a game-changer for me: • Tiny & lightweight — Fits in the palm of my hand and weighs almost nothing. I clip the included key right onto my AirPods case with the built-in loop, so everything stays together in one easy spot. • Easy to use at the gym — Slides through the locker latch in seconds, snaps shut, and opens just as fast. The blue vinyl coating is smooth and quiet — no loud clanking like metal locks. • Secure & durable — Holds my wallet, phone, watch, and keys safely while I’m lifting or on the treadmill. The vinyl keeps it from scratching the locker or my bag. • Perfect pre-work hack — I throw my bag in the locker, clip the lock on, and I’m in the zone in under 30 seconds. No hassle, no stress. I’ve used it every morning for the past couple of weeks and it still looks brand new. If you hit the gym before work and want a no-fuss, ultra-portable lock that you can literally attach to your AirPods case, this Master Lock is perfect. Way better than the big clunky ones they sell at the front desk. Highly recommend — best $8–10 I’ve spent on gym gear in a long time!
U**T
Great lock for a small price
This lock is perfect for my garage door hasp. The rubber covering on the lock itself will be great for keeping it from rusting like the other locks I have used in the past. Conveniently arrives with two keys. One for your keychain and one for the drawer or a 2nd ring. And of course, since it's a Master brand lock, you know it will last a long time and open easily.
I**!
Great For Indoor Storage Lockers!
Works great for my storage units in my building, and my locker at work. Good quality, as expected from Master, and the keys are easy to hold. I like how the keys are the same color as the lock. I have three colors of the lock, so I always know which key opens which lock. Will buy anytime I need a padlock for any indoor application.
B**0
Perfect
Works well. Great price compared to my local box store.
G**!
Good product
Works great, comes with two keys. Read description on size. Was way smaller than I thought, but worked for what I needed it for.
S**B
Gym Lock
Great little lock with key. I use it when I go to the gym. It is made well and great size! I like the color and that I can differentiate it from others well.
I**S
It's a nice lock
The perfect lock for her a gym lockers or for lockers in school! It's a good purchase
T**R
Good little lock
It’s a master lock what else do you need to say lol, solid little lock i bought it to lock up my tool box and it works great for that. Nice looking and well made lock. Perfect size and so far has held up well
P**L
Picked through this 30s after opening the package
Pulled it out of the post box, sat down in front of the TV, ripped the packaging open and in around 30s - 1m I had managed to get an open with my standard lock pick set. On a side note it is also so small and weak it could probably be pulled off whatever it is attached too. Could only advise use cases which require no security at all.
P**.
The Master Lock 142CM does come with a Blue Cover color.
The Master Lock 142CM Padlock works fine and the quality is very good. It comes with two keys. Thank you!
L**K
Bonito color y útil
Su nivel de seguridad es 4, útil para lockers de gym.
G**.
Bon produit.
Bon produit. Fonctionne bien.
G**O
Solid and sturdy
Solid and sturdy lock much better quality than the no name brands.
Trustpilot
2 months ago
1 month ago