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The Best Master Locks Keyed Alike of 2023 – Reviewed and Top Rated

2,658 Reviews Scanned

Rank No. #1

Master Lock - (4) Keyed Alike Stainless Steel Trailer and Multi Purpose Padlocks 40KA-4

2-3/4" (70mm) wide stainless steel body resists corrosion
Case-Hardened 3/8" steel shackle for extra cut resistance
4-pin cylinder helps prevent picking
Key retaining feature ensures padlock is not left unlocked
Keyed Alike (KA) / Qty-4

Rank No. #2

Master Lock Magnum Padlock - 2" W x 2-1/2"L Shackle, Eight (8) Keyed Alike Locks M5NKALJSTS-8 w/BumpStop Technology

Eight (8) Locks Keyed Alike w/ 16 Keys. A shorter 1-1/2" (38mm) shackle version available - search: M5NKASTSLF
These locks feature the BumpStop Advanced Cylinder Technology. (for explanation see more product details below).
If you order two 8-packs or any multiple of this lock they will NOT automatically be keyed the same. To receive 16 keyed alike you will need to order direct from the merchant LocksChocksTiedowns also available here on Amazon.
SPECIFICATIONS: 2" (51mm) wide laminated steel body for superior durability. 2-1/2"L (64mm) x 3/8" thick octagonal BORON CARBIDE shackle is 50% harder than hardened steel.
COMMERCIAL MAGNUM offers a higher level of weatherability and security for applications in outdoor, corrosive and caustic environments. Stainless steel body cover and top and bottom plates for exceptional weather protection. Chrome-plated shackle for excellent rust resistance. Superior pry resistance with dual-ball bearing locking.

Rank No. #3

Master Lock 3KA-3210 1-1/2" Laminated Keyed Alike Padlocks - Quantity 1212

Quantity of (12): Master Lock # 3KA-3210 1-1/2" Laminated Padlocks
Keyed Alike To Master Lock Key Code #3210
3/4" Shackle, 9/32" Shackle Diameter
Uses Common Master Lock Key Blank K1BOX Or Ilco Blank M1
Each Lock Comes with 2 Keys

Rank No. #4

Master Lock Outdoor Key Lock, Heavy Duty Weatherproof Padlock with Cover, Keyed Alike Padlocks for Outdoor Use, 4 Pack, M115XQLF, Black

Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units & lockers, tools, job boxes and more.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
Key lock features Dual Armor construction: laminated steel lock body with weather resistant cover and Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel
4-Pin cylinder and dual ball bearing locking for increased pick and pry resistance; Covered keyway and shackle for added weather protection
1-7/8 in. (48 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 1-1/2 in. (38 mm) length, 13/16 in. (21 mm) width; Extended shackle for application flexibility
Includes four padlock with two keys; Both keys open all locks

Rank No. #5

Master Lock - Keyed Alike Locks 3NKALF-8 w/BumpStop Technologiy

This listing is for EIGHT (8) padlocks keyed alike (same key unlocks all locks) and sixteen keys. These locks feature the BumpStop Advanced Cylinder Technology (for explanation see more product details below). The lock is also available with out Bump Stop Technology. Search 3KALF in our storefront.
These padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. Features a 1-9/16in (41mm) wide reinforced laminated steel body with black bumper and a 1-1/2in (38mm) tall, 9/32in (7mm) diameter shackle.
Dual ball bearings locking for maximum pry resistance making it ideal for environments where lock is subjected to physical abuse and the 4-pin tumbler cylinder provides security.
Hardened steel bottom plates for drill resistance. Top and bottom bumpers for greater scratch resistance.
Limited lifetime warranty from a name you trust.

Rank No. #6

Master Lock Outdoor Padlocks, Lock Set with Keys, Keyed Alike Padlocks, 3 Pack

Indoor and outdoor lock; Padlock with key is best used for residential gates & fences, sheds, workshops & garages, tool boxes and more.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
Key lock features a laminated steel body and a hardened steel shackle for strength and security
4-Pin cylinder for added pick resistance and dual ball bearing locking for maximum pry resistance
1-9/16 in. (40 mm) wide lock body; 9/32 in. (7 mm) diameter shackle with 1-1/2 in. (38 mm) length, 5/8 in. (16 mm) width; Extended shackle for application flexibility
Includes three padlocks with two keys; Both keys open all locks

Rank No. #7

Master Lock (6) Keyed Alike Padlocks w/Thermoplastic Coating - 311KA-6

Six (6) Keyed Alike Padlocks w/ 12 Keys. If ordering multiples of this 6-pack we will automatically key them the same. These keyed alike locks can be matched with other locks that have the W1 cylinders.
High-tech thermoplastic shell designed for superior weatherization. A capped key-way prevents dirt and grime from jamming the lock.
1-3/4" Wide body with a hardened 9/32" thick steel shackle.
Patented dual-locking levers for premium pry resistance. Pin tumbler mechanism for extra resistance to picking.
Ideal for most applications especially outdoors including trailer doors, sheds, gates and boats.

Rank No. #8

Master Lock M1XQLF Magnum Heavy Duty Outdoor Padlock with Key, 4 Pack Keyed-Alike, Silver

Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units & lockers, tools, job boxes and more
Key lock features Dual Armor construction: laminated steel lock body surrounded by stainless steel & zinc outer components and Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel
4-Pin cylinder and dual ball bearing locking for increased pick and pry resistance; Reinforced body bumper for increased scratch resistance
1-3/4 in. (44 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 1-1/2 in. (38 mm) length, 13/16 in. (21 mm) width; Extended shackle for application flexibility
Includes four padlocks with two keys; Both keys open all locks

Rank No. #9

Master Lock 131Q 1-3/16" Wide Weatherproof Solid Body Padlock; 8-Pack

Two sets of 4, each set has different key.
Hardened steel shackle for extra cut resistance
4-pin cylinder for added pick resistance
Made of corrosion resistant materials

SaleRank No. #10

Master Lock 1TRILJ Outdoor Padlock with Key, 3 Pack Keyed-Alike,Silver

Indoor and outdoor lock; Padlock with key is best used for residential gates & fences, sheds, workshops & garages, tool boxes and more
Key lock features a laminated steel body and a hardened steel shackle for strength and security
4-Pin cylinder for added pick resistance and dual ball bearing locking for maximum pry resistance
1-3/4 in. (44 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 2-1/2 in. (64 mm) length, 3/4 in. (19 mm) width; Extended shackle length for application flexibility
Includes three padlocks with two keys; Both keys open all three locks

Rank No. #11

Master Lock M5XQLJ Magnum Heavy Duty Outdoor Padlock with Key, 4 Pack Keyed-Alike, Silver

Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units & lockers, tools, job boxes and more
Key lock features Dual Armor construction: laminated steel lock body surrounded by stainless steel & zinc outer components and Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel
4-Pin cylinder and dual ball bearing locking for increased pick and pry resistance; Covered keyway and shackle for added weather protection
2 in. (51 mm) wide lock body; 3/8 in. (10 mm) diameter shackle with 2-1/2 in. (64 mm) length, 15/16 in. (24 mm) width; Extended shackle for application flexibility
Includes four padlock with two keys; Both keys open all locks

Rank No. #12

Master Lock 141TLF Covered Aluminum Padlock with Key, 2 Pack Keyed-Alike, Black

Indoor and outdoor padlock is best used as a shed lock, gate lock, and storage locker lock, providing protection and security from theft
Key lock is constructed with a black vinyl-covered aluminum body for scratch and corrosion resistance, hardened steel shackle for cut resistance
Four-pin cylinder and dual locking lever mechanism for pick and pry resistance
1-9/16 in. (40 mm) wide lock body; 1/4 in. (6 mm) diameter shackle with 7/8 in. (22 mm) length, 13/16 in. (21 mm) width
Includes two padlocks and two keys (matching color key head for added convenience); Both keys open each lock

Rank No. #13

Master Lock 1SSQLF Stainless Steel Outdoor Padlock with Key, 4 Pack Keyed-Alike, Silver

Padlock with key is best used for marine recreation, saltwater applications, offshore security environments and severe uses
Key lock features a stainless-steel lock body and shackle for maximum strength and corrosion resistance
Brass 4-pin tumbler and dual ball bearing locking mechanism provide maximum weather, pick and pry resistance
1-3/4 in. (44 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 1-1/2 in. (38 mm) length, 3/4 in. (19 mm) width; Extended shackle for application flexibility
Includes four padlocks with two keys; Both keys open each lock

Rank No. #14

Master Lock Padlock, Solid Brass Lock, 3/4 in. Wide, 120Q (Pack of 4-Keyed Alike)

PADLOCK APPLICATION: For indoor use; Small padlock is best used for backpacks, briefcases, tackle boxes, lockers and storage cabinets.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
DURABLE DESIGN: Padlock features a durable solid brass body and a steel shackle for cut resistance
SPECIFICATIONS: 3/4 in. wide lock body; 5/32 in. diameter shackle with 7/16 in. length, 3/8 in. width
INCLUDES: Four padlocks, two keys; both keys open all four locks
INCLUDES: Four padlocks; same key opens all four locks

Rank No. #15

Master Lock - (4) Keyed Alike Trailer & Multi Purpose Padlocks, 37KA-4

This listing is for FOUR (4) padlocks keyed alike (same key unlocks all) and eight keys. The lock is also available with Bump Stop Technology. Search 37NKA in our storefront.
APPLICATION: These padlocks are ideal for all outdoor applications when needing multiple locks that utilize ONLY one key. The #37 latch lock works well on 1-7/8 and 2 inch couplers and on virtually all standard hasp applications. These locks have a removable shackle sleeve. Sleeve off - Secures coupler latches. Sleeve on - Works best with hasps. KEY RETAINING - ensures that padlock is not left unlocked.
PADLOCK FEATURES: 1-9/16"(21mm) wide x 3"(76mm) high. Armored Shackle Guard blocks bolt cutters. Revolving, case-hardened steel shackle sleeve resists cutting and sawing. Removable shackle sleeve. Sleeve off - Secures coupler latches to accommodate openings 9/32" (7mm) in diameter. Sleeve on - Works best with hasps, fits openings 1/2" (13mm) in diameter or larger. Precision pin tumbler mechanism resists picking.
IMPORTANT NOTE: If using this style lock on a trailers coupler latch please be aware it is NOT recommended for all 2-5/16 couplers. It will fit some 2-5/16 couplers, the exception being 2-5/16 couplers that have the latch partially recessed from the top surface of the coupler, or latches that are wider than 7/8.
ATTENTION: If you order two 4-packs they will NOT necessarily be keyed the same. To ensure you get two 4-packs keyed alike, you must order the 8-pack.

Rank No. #16

Master Lock (4) Keyed Alike Padlocks w/Thermoplastic Coating and 2"(51mm) Tall Shackle - Model # 311KALH-4

Four (4) Keyed Alike Padlocks w/ 8 Keys. These keyed alike locks can be matched with other locks that have the W1 cylinders. Limited Life Time Warranty. If you order two 4-packs they will not necessarily be keyed the same, to assure keyed alike you would need to order the 8-pack.
High-tech thermoplastic shell designed for superior weatherization. A capped key-way prevents dirt and grime from jamming the lock.
1-3/4" Wide body with a hardened 9/32" thick steel shackle.
Patented dual-locking levers for premium pry resistance. Pin tumbler mechanism for extra resistance to picking.
Ideal for most applications especially outdoors including trailer doors, sheds, gates and boats.

Rank No. #17

Lion Locks 24 Keyed Alike Padlocks with 2" Long Shackle, 48 Keys - Padlocks for Outdoor Use, Locks with Keys, Hardened Steel Case, Pick Resistant Brass Pin Cylinder for Hasp Latch, Locker, Gate

KEYED ALIKE 2" LONG SHACKLE LOCKS – Have mercy on your keyring! Don’t walk around with a separate key for every padlock you maintain, these keyed alike locks allow you to use just one key on all your properties!
INDOOR & OUTDOOR LOCK: This locks classic design makes it great for indoor settings as a cabinet lock or gym locker lock, or outdoors as a cable lock, outdoor gate lock, storage sheds security lock, outdoor gate locks, or fence chain lock.
EXTREMELY DURABLE – Made of Hardened steel with a strong and thick shackle, these locks are built to stand up to the sawing and cutting of thieves. Lion Locks are tested in the toughest of environments to make sure they won’t let you down!
THEY CAN’T PICK ON YOU – The brass pin cylinder in these padlocks make it difficult to pick and offer a longer life than that of locks with plastic or aluminum tumblers.
TRUST THE LION – Lion Locks are backed by a lifetime warranty, allowing you to secure your belongings with peace of mind

Rank No. #18

Master Lock 140Q Solid Padlocks, 4 Pack, Keyed-Alike, Brass, Silver

For indoor and outdoor use; Padlock is best used for backpacks, briefcases, tackle boxes, lockers and storage locks
Padlock features a durable solid brass body to resist corrosion and a hardened steel shackle for cut resistance
4-pin cylinder and dual locking lever mechanism provides pick and pry resistance
1-9/16 in. wide lock body; 1/4 in. diameter shackle with 7/8 in. length, 13/16 in. width
Four padlocks, two keys; same key opens all four locks

SaleRank No. #19

Master Lock M530XQLH Magnum Solid Steel Keyed Alike Padlocks, 1-3/4 in. Wide, 4 Pack Keyed-Alike

Indoor and outdoor padlock; maximum security lock with Tough-Cut octagonal boron-carbide shackle; best used for residential gates & fences, sheds, workshops & garages, storage lockers, tool boxes and more.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
Lock is constructed with solid steel for increased strength and security; protective bumper for scratch resistance
Four pin cylinder and dual ball bearing locking mechanism provides maximum pick and pry resistance; Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel
1-3/4 in. wide lock body; 9/32 in. diameter shackle with 2 in. length, 13/16 in. width; extended shackle for application flexibility
Includes four padlocks, two keys; Each key opens all locks

Rank No. #20

Master Lock M1XTRILH Magnum Heavy Duty Padlock with Key, 3 Pack Keyed-Alike,Silver

Outdoor lock; Heavy duty padlock with key is best used for outdoor storage and fences, self-storage units & lockers, tools, job boxes and more
Key lock features Dual Armor construction: laminated steel lock body surrounded by stainless steel & zinc outer components and Tough-Cut octagonal boron-carbide shackle is 50% harder than hardened steel
4-Pin cylinder and dual ball bearing locking for increased pick and pry resistance; Reinforced body bumper for increased scratch resistance
1-3/4 in. (44 mm) wide lock body; 5/16 in. (8 mm) diameter shackle with 2 in. (51 mm) length, 13/16 in. (21 mm) width; Extended shackle for application flexibility
Includes three padlocks with two keys; Both keys open all locks

Last update on 2023-08-07 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: How to lock pick Master?

A: Make a lock pick and tension wrench with bobby pins. Push the pin at the back of the lock up with your pick. Push up the rest of the pins in the lock with your pick. Pull your pin and tension wrench out of the lock. Buy a lock picking kit for the best results. (more items)

Q: Does Master Lock open with same key?

A: Each lock is opened by its own unique key that does not open any other lock in the set. Keyed Different is the standard keying default on Master Lock and American Lock padlocks. All padlocks in the set are opened by the same key. This option provides “same key” convenience and eliminates the need for multiple keys where numerous padlocks are used.

Q: What is a “keyed different” lock?

A: Item Padlock Keying Keyed Different Lock Body Material Steel Lock Body Finish Laminated Lock Body Shape Rectangular Lock Body Color Silver Body Height 1 3/4 in Body Width 1 3/4 in Body Thickness 7/8 in Security Level General Security

Q: What is Master Lock master key?

A: A master keyed lock system is one in which locks are designed not only to be opened by their individual keys, but also by special “master” keys that open some or all other locks in the system.