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🔐 Lock in your peace of mind with industrial-grade toughness!
The Master Lock Keyed Padlock 6321 features a hardened boron alloy shackle and a heavy steel body with a shrouded design to protect against bolt cutters and physical attacks. Its 5-pin spool cylinder offers superior pick resistance, making it ideal for commercial and industrial security needs. Finished in sleek black with recycled materials, this durable padlock combines eco-conscious manufacturing with lifetime reliability.
| ASIN | B000E2NMWC |
| Additional Features | Recycled |
| Best Sellers Rank | #622,998 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,514 in Keyed Padlocks |
| Brand | Master Lock |
| Brand Name | Master Lock |
| Color | Black |
| Control Method | App |
| Customer Reviews | 4.2 out of 5 stars 78 Reviews |
| Finish Types | Laminated |
| Global Trade Identification Number | 00071649040078 |
| Included Components | Padlock |
| Item Dimensions | 4 x 2.1 x 1 inches |
| Item Height | 1 inches |
| Item Type Name | Padlock |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 4 x 2.1 x 1 inches |
| Lock Type | Key Lock |
| Manufacturer | Master Lock, LLC |
| Manufacturer Warranty Description | Lifetime |
| Material | Hardened Boron Alloy Shackle, Iron Shroud, Steel Body |
| Material Type | Hardened Boron Alloy Shackle, Iron Shroud, Steel Body |
| Model Number | 6321 |
| Recommended Uses For Product | commercial and industrial applications |
| Shape | Rectangular with rounded corners |
| Special Feature | Recycled |
| Style Name | Industrial |
| UPC | 071649040078 |
| Unit Count | 1.0 Count |
R**H
Very Heavy!
The lock is substantial and heavy! It paired nicely with the heavy duty chain I purchased. Black goes very well with the coated black chain against the black gate. Will deter the average thief.
D**E
A tough lock that is difficult (but not impossible) to cut.
I bought this lock to put on my storage unit after my Master combination lock froze (it was -30 degrees, Fahrenheit) and would no longer work. So far, it's been very reliable and it's an extremely well built and heavy duty lock. They can be cut, but the extra protection will make it a tough job. I know, because I had to cut the previous lock that was very similar, but was a combination lock instead of a keyed lock.
D**G
Good heavy duty lock
I'm not an expert, but have owned a number of types of padlocks. This lock is heavy, and the key mechanism works very smoothly. I would purchase again. 2 month update: after a few months in the sun, the main body of this lock turned a light gray. I purposely bought a black lock. So much for that.
M**Z
Outstanding product
Outstanding product would recommend this product to others
C**K
Doesnt work for Uhaul
Seems like a sturdy product but it doesnt fit uhaul trucks, which is how it was advertised and the reason I bought it. Had to go to Lowes last minute and choose another option.
G**N
Fits storage locker door tightly
Looks and feels very heavy duty. Doesn't leave any room in storage locker door for a thief to pry on it. Spare keys from a locksmith were $1.50 each. Locksmith told me that these locks are very tough.
C**R
High Performance Lock
I consider this lock to be military grade, which in this old warhorse's vocabulary means better than top quality. I trust it to secure a shipping container in a remote location.
M**P
Jammed shut and won't unlock after only 6 weeks.
What good is a padlock that won't unlock for its owner - it's worthless! It worked a few times, but now won't unlock when it's in place on my door's hasp - I'm locked out of my own shed.
Trustpilot
2 weeks ago
1 week ago