Master Lock Co.

Oak Creek, WI 53154


About Master Lock Co.


137 W. Forest Hill Ave.
Oak Creek, WI 53154

More Info on Master Lock Co.

Products and Press Releases

Master Lock Bluetooth Pro Series Padlock 6400 Shent Product Shot
Padlocks, high security

Master Lock ProSeries Bluetooth Padlocks

Sept. 28, 2021
Master Lock expanded its Bluetooth-enabled product family with the introduction of its ProSeries Padlocks. The new high-security padlocks come with a variety of shackle options...
Master Lock 100 Year Logo Lion Only
Padlocks, combination

Master Lock Celebrates 100 Years

Feb. 2, 2021
Yearlong celebration details and new user-led innovation to commemorate the milestone.
Master Lock Model 5440ENT portable lock box. Green signals that it is unlocked.

Master Lock To Donate Bluetooth Lock Boxes to Frontline Healthcare, First Responder and Small Business Workers

May 12, 2020
1,000 free Bluetooth Lock Boxes offered to help safeguard personal protective equipment and critical assets
Now Even Stronger Padlocks
Padlocks, laminated

Master Lock Upgraded Laminated Padlocks

Aug. 5, 2019
Master Lock introduces a new generation of Laminated Padlocks. Rolling out now for both “Home & Personal” and “Business & Industry” use, Master Lock’s family of Laminated Padlocks...
Master Lock 3685 electronic locker lock with housing

Master Lock: The Official Lock of the Milwaukee Bucks Locker Room

Jan. 8, 2018
MILWAUKEE – Master Lock has become the “Official Lock of the Milwaukee Bucks Locker Room” at the upcoming Wisconsin Entertainment and Sports Center.A short partnership announcement...
1588D all 59c5152b9ddc7

Master Lock Magnification Combination Padlock

Sept. 22, 2017
MILWAUKEE, Sept. 19, 2017 – Master Lock introduces its Magnification Combination Padlock – the latest example of innovation born from consumer insights. Featuring a larger font...
MLock Rusk Return 581c9778dd53b

Master Lock Residential Line

Nov. 4, 2016
Continuing to bring new styles to meet customer preferences, The Master Lock Company is introducing a pair of new styles to their Residential Door Hardware collection. The Rusk...
American Lock Harsh Environments display board
Advertising aids

Master Lock Rolls Out 4 New Locksmith Merchandise Display Boards

Aug. 19, 2016
Newest display boards feature American Lock® Harsh Environments, American Lock High Security, Safety Lockout and Master Lock Commercial Magnum® products.
MLock Magnum Application 57ae0a2762157

Commercial Magnum® Padlocks

Aug. 12, 2016
(MILWAUKEE, WIS.) – August 11, 2016 – The Master Lock Company successfully introduced the new Magnum® padlocks at the Associated Locksmiths of America (ALOA) Convention & Security...
ML 2016AOLA Grade1ResidentialDeadbolt ProductShot 579a5b05f35b9

Grade 1 Residential Deadbolts

Aug. 8, 2016
To satisfy growing demand in the marketplace, Master Lock Residential Door Hardware introduces Grade 1 Residential Deadbolts and an expanded line of door hardware styles. Single...

Articles & News

Medeco All Weather Padlock with Medeco XT key
Padlocks, high security

New Horizons in Padlocks

June 2, 2020
The introduction of technology has made this protection solution no longer just a mechanical outlier.
Master Lock Bluetooth Door Controller
Door Hardware

Bluetooth Technology Opens New Doors

Jan. 2, 2020
Master Lock expands Bluetooth access control options with new door controller
Bob Morrissette (left) and Master Lock field representative Ed Skaaland, stand next to American Lock and Master Lock customer merchandise display boards.

Bayfront Central Security & Systems Group experiences long-term profitability with The Master Lock Company

Dec. 1, 2016
Bob Morrissette’s time at Bayfront Central Security & Systems Group in St. Petersburg, Fla., dates back to 1982, and a phone call 25 years ago led to him running the business....
FJM Security's SX-790 combination disc padlocks

New Ideas In Mobile Locking Products

March 1, 2016
Padlock manufacturers have improved the original shackle and body padlock design with new forms and functions
Sentrysafe 4clr Fade 11612324

People & Places, Sept. 2014

Sept. 2, 2014
Master Lock Acquires Sentry SafeThe Master Lock Company (TMLC) has made a strategic acquisition of Sentry Safe, a leading producer of personal safes and protective security containers...
Crowd at opening of IML Los Angeles Expo

IML Los Angeles Expo A Crowd-Pleaser

July 22, 2014
During the three days of March 17-19, 2011, Intermountain Lock & Security Supply presented their Los Angeles IML Expo, covering 16 classes on Thursday and Friday and cumulating...
Zwipe puts fingerprint reader on the smart card
Electronics & Access Control

News Briefs, March 2014

March 3, 2014
Zwipe - The Next Evolution of ID CardZwipe will introduce its new, next-generation biometric card, a contactless smart card credential with on-card fingerprint reading, at the...
8400 series adjustable cable locks incorporate Python rekeying system.

Master Lock: The Rest Of The Story

Feb. 3, 2014
Product offerings from Master Lock go far beyond the traditional padlock
Capitalize on the consumer trend toward keyless convenience with Master Lock’s programmable 20-code Electronic Keypad Deadbolt (EKD).

Security With Style From Master Lock

Oct. 2, 2012
For keyless convenience, Master Lock’s Electronic Keypad Deadbolt (EKD) replaces standard deadbolts (no additional door prep), providing ANSI Grade 2 security with backup key ...
Scenes from the convention floor

The Back Page, September 2012

Sept. 4, 2012
TWENTY YEARS AGOOur September, 1992 issue marked the beginning of a new era as Bill Reed retired from Locksmith Ledger. Padlocks were the theme of the September issue beginning...

Videos & Resources

Ford Transit full-sized vehicle.
Door Hardware

Photo Gallery: New Security Product Highlights from ALOA

Aug. 13, 2013
Here are some of the new mechanical and automotive security products that were getting a lot of attention at the ALOA 2013 Security Expo last month.

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All content from Master Lock Co.

MLock Bluetooth 4400 locker lock 56e83913be079

Master Lock Bluetooth Smart Padlock

July 1, 2016
Master Lock introduces two Bluetooth Smart products, the 4400D indoor padlock and the 4401DLH outdoor padlock. Both locks omit the need for traditional keys or combinations because...
MLock General Security Display Board 57435dfb271f1

Master Lock Introduces New Locksmith Merchandise Display Boards

May 23, 2016
MILWAUKEE, WIS. – May 23, 2016 – The Master Lock Company has proven to be one of the most recognized and trusted sources for locksmiths with their iconic and dependable security...
MLock Bluetooth 4400 locker lock 56e83913be079

Master Lock features game changing Bluetooth locker lock solutions

March 15, 2016
User’s smartphone acts as a key to locker locks and outdoor-use padlocks
MLock 6121 Colors 54f07871861f2

6121 ProSeries® Weather Tough®

Feb. 27, 2015
To better help customers with security coding efforts for different work site locations, departments and employee identification, Master Lock has introduced six vivid colors for...
975 Ressettable Front Bottom 11611220
Padlocks, combination

975 Resettable Security Padlock

Aug. 5, 2014
Master Lock Security Solutions™ introduces the 975 padlock, part of the existing Master Lock Resettable Combination family. The sleek 975 offers dual deadlocking security and ...
Master Lock 1652 Built In Di 11428867

Built-In Combination Lock

April 28, 2014
Combination changes can be made from the outside, without opening the locker, with control key
Master Lock S6835 Series 11409979
Padlocks, high security

S Series Padlocks

April 17, 2014
Master Lock® Safety Solutions™ has introduced the S-series padlock line, an all-new line of aluminum safety padlocks specifically designed for safety lockout/tagout purposes.To...
Master Lock Grade 3 Dh 11322973

Grade 3 Residential Door Hardware

March 5, 2014
Master Lock Grade 3 residential door hardware offers an exclusive combination of quality, innovation and features. Designed to meet ANSI Grade 3 standards, Master Lock grade 3...
Master Lock Safety Padlock C 11316119

Extreme Environment Padlock Covers

Feb. 21, 2014
Master Lock Company LLC now offers a new line of safety padlock covers that protect your padlocks from extreme conditions in environments where Lockout/Tagout procedures are performed...