Master Lock Outdoor Padlock with Key 4 Pack - Keyed-Alike Security

In this review of the Master Lock 3QLF Outdoor Padlock with Key, 4 Pack Keyed-Alike, the bottom line is simple: this kit is for anyone who needs multiple reliable padlocks that share one key for convenience. The reviewer found these locks strike a practical balance between value and function, offering a laminated steel body and hardened shackle built for outdoor use. For homeowners securing gates, sheds or tool boxes who want a keyed-alike set without specialty cylinders, this pack is an economical, no-frills choice that performs well in routine residential applications.

Key Features

• Keyed-alike convenience: All four padlocks operate with the same pair of keys, making access to multiple locks fast and simple without juggling separate keys.
• Durable construction: The laminated steel body and hardened steel shackle provide solid physical protection against casual attack and everyday wear outdoors.
• Pick resistance: The 4-pin cylinder adds basic resistance to picking attempts, raising the effort required to defeat the lock.
• Dual locking: Dual ball bearing locking improves pry resistance so the shackle is harder to force open.
• Size and reach: With a 1-9/16 in wide body and an extended shackle option, these locks fit common hasps, gates and tool boxes with extra clearance when needed.
• Four-pack value: Including four padlocks and two keys gives broad coverage for multiple points of access without buying separate keyed sets.

Who It's For

The 4-pack is best for homeowners and renters who need a straightforward keyed-alike solution for gates, sheds, garages, storage bins and gym lockers where moderate security and weather resistance matter. Installers and small businesses that manage several low- to medium-risk access points will also appreciate the convenience and cost per lock.

Those who require high-security, drill-resistant cylinders or electronic key control should look elsewhere, as these locks are designed for residential and light commercial use rather than maximum-security applications. If you need many duplicate keys beyond the two included, plan for key duplication via a locksmith.

Pros & Cons

Pros

• Solid, heavy-duty feel from laminated steel construction and hardened shackle.
• Keyed-alike setup reduces the number of keys to carry and simplifies access.
• Dual ball bearing locking and a 4-pin cylinder add real resistance to pry and pick attempts.
• Four locks per pack deliver strong value for protecting multiple points.

Cons

• Some customers report mixed experiences with keys shipped and occasional sticking in harsh conditions, so extreme weather exposure may require periodic maintenance.
• Not intended for high-security or controlled-key applications where restricted keyways are required.

Specifications

Brand	Master Lock
Model	3QLF Outdoor Padlock
Pack	4 padlocks keyed-alike
Body width	1-9/16 in (40 mm)
Shackle	9/32 in (7 mm) diameter, 1-1/2 in (38 mm) length
Cylinder	4-pin cylinder
Includes	Four padlocks and two keys (both keys open all locks)

Our Verdict

The Master Lock 3QLF 4-pack keyed-alike padlocks are a pragmatic choice for residential gates, sheds and basic commercial uses where convenience and durability matter more than cutting-edge security. They offer dependable laminated steel construction, dual locking and basic pick resistance at a price that makes it easy to outfit multiple access points with one key for everyday use.

Frequently Asked Questions

Are all locks operated by the same key?
Yes, the set is keyed-alike so both included keys open all four padlocks.

Is this lock suitable for outdoor use year-round?
The locks are built for outdoor use and resist routine weather exposure, but heavy coastal salt or extreme conditions may require occasional lubrication and inspection.

How secure is the cylinder?
The 4-pin cylinder provides basic pick resistance appropriate for residential and light commercial needs but is not a high-security, restricted-key system.