https://www.lockwiki.com/api.php?action=feedcontributions&feedformat=atom&user=Imaginary-Limit-3544Lockwiki - User contributions [en]2026-05-11T22:29:41ZUser contributionsMediaWiki 1.38.5https://www.lockwiki.com/index.php?title=Master_Lock&diff=14034Master Lock2025-06-05T18:25:29Z<p>Imaginary-Limit-3544: /* Keyed padlocks */</p>
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{{Lock manufacturer<br />
|Name=Master Lock<br />
|Img=File:Masterlockcosymbol.png<br />
|Headquarters=Milwaukee, WI (USA)<br />
|Founded=1921<br />
|Founder=Harry Soref, P.E. Yolles, Sam Stahl<br />
|Products=[[Padlock]]s, [[Combination]] locks<br />
}}<br />
'''Master Lock''' is an American [[Lock_manufacturer |lock manufacturer]] that produces low security [[padlock]]s, chain locks, gun locks, and various other lock related equipment. Master Lock is currently the world's largest importer of padlocks and related security products. They are best known for their laminated steel layer padlocks that use [[warded]] and [[Pin_tumbler |pin-tumbler]] designs. Their [[combination]] padlocks are also widely used on lockers in schools throughout the United States.<br />
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== History ==<br />
<br />
Master Lock was founded in 1921 by Harry Soref, P.E. Yolles, and Sam Stahl. Soref invented and patented a padlock in 1924 that used laminated layers of steel for extra protection. Padlocks of the time were all hollow and suspectible to various [[forced entry]] techniques, particularly impact with a hammer. Soref's inspiration for the design was from bank vault doors and battleships of the time.<ref>[http://www.masterlock.com/about/history.shtml Master Lock: About Us / History]</ref><br />
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Soref's design went on to be wildly successful, with federal agents placing large orders. Many of these padlocks were used to lock down establishments that disobeyed prohibition laws.<br />
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In 1939 Master Lock moved to their current facility at 2600 North 32nd Street, Milwaukee, Wisconsin. Harry Soref died in 1957. He was succeeded as president of Master Lock by co-founder and long time friend Sam Stahl.<br />
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American Brands acquired Master Lock in 1970. <ref>[http://www.fundinguniverse.com/company-histories/master-lock-company-history/ Master Lock Company History]</ref> American Brands was renamed to Fortune Brands in 1997. In 2014, Master Lock acquired SentrySafe. <ref>[http://content.masterlock.com/masterlock/resources/documents/pdf/PR_ML_Master-Lock-Acquires-Sentry-Safe.pdf The Master Lock Company Announces Strategic Acquisition of Sentry Safe]</ref> Fortune Brands Innovations owns Master Lock along with American Lock and SentrySafe.<br />
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== "Tough Under Fire" campaign ==<br />
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In 1973, Master Lock ran a famous Super Bowl ad where one of their locks survived being shot by a sharpshooter, thereby proving its durability, thus the slogan "Tough Under Fire". Master Lock would continue running similar ads during future Super Bowls, spending almost their entire annual marketing budget on the single commercial. <ref>[http://www.clickz.com/experts/archives/ebiz/ebiz_report/article.php/835901 Advertising During the Super Bowl]</ref><br />
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In the episode "Mega Movie Myths" of the Discovery Channel's show MythBusters, this famous ad was tested by shooting a Master Lock padlock by a rifle. Master Lock padlocks passed the test when shot with a 9mm and .357 handguns, but were defeated by shotguns and Garand rifles.<ref>[http://www.imdb.com/title/tt0852842/synopsis Mythbusters "Mega Movie Myths"]</ref> The official Mythbusters verdict was not "busted," but rather "plausible." They argued that using such strong firearms at close range may cause ricochet and spalling which would be extremely dangerous to a real-life attacker.<ref>[http://mythbustersresults.com/special9 Mythbusters Special 9: Mega Movie Myths]</ref><br />
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== Lock Listing ==<br />
<br />
==== Keyed padlocks ====<br />
* [[Master Lock No 1]]<br />
* [[Master Lock No 2]]<br />
* [[Master Lock No 3]]<br />
* [[Master Lock No 4]]<br />
* [[Master Lock No 5]]<br />
* [[Master Lock No 6]]<br />
* [[Master Lock No 7]]<br />
* [[Master Lock No 8]]<br />
* [[Master Lock No 15]]<br />
* [[Master Lock No 17]]<br />
* [[Master Lock No 19]]<br />
* [[Master Lock No 21]]<br />
* [[Master Lock No 22]]<br />
* [[Master Lock No 25]]<br />
* [[Master Lock No 27]]<br />
* [[Master Lock No 29]]<br />
* [[Master Lock No 40]]<br />
* [[Master Lock No 77]]<br />
* [[Master Lock No 81]]<br />
* [[Master Lock No 82]]<br />
* [[Master Lock No 121]]<br />
* [[Master Lock No 130]]<br />
* [[Master Lock No 140]]<br />
* [[Master Lock No 141]] / [[Master Lock No 142|142]]<br />
* [[Master Lock No 150]]<br />
* [[Master Lock No 160]]<br />
* [[Master Lock No 170]]<br />
* [[Master Lock No 185]]<br />
* [[Master Lock No 187]]<br />
* [[Master Lock No 190]]<br />
* [[Master Lock No 192]]<br />
* [[Master Lock No 192]]<br />
* [[Master Lock No 193]]<br />
* [[Master Lock No 194]]<br />
* [[Master Lock No 195]]<br />
* [[Master Lock No 196]]<br />
* [[Master Lock No 197]]<br />
* [[Master Lock No 198]]<br />
* [[Master Lock No 205]]<br />
* [[Master Lock No 220]]<br />
* [[Master Lock No 230]]<br />
* [[Master Lock No 311]]<br />
* [[Master Lock No 315]]<br />
* [[Master Lock No 380]]<br />
* [[Master Lock No 392]]<br />
* [[Master Lock No 410]]<br />
* [[Master Lock No 450]]<br />
* [[Master Lock No 475]]<br />
* [[Master Lock No 510]]<br />
* [[Master Lock No 517]]<br />
* [[Master Lock No 532]]<br />
* [[Master Lock No 570]]<br />
* [[Master Lock No 575]]<br />
* [[Master Lock No 576]]<br />
* [[Master Lock No 605]]<br />
* [[Master Lock No 911]]<br />
* [[Master Lock No 930]]<br />
* [[Master Lock No 2240]]<br />
* [[Master Lock No 6271]]<br />
* [[Master Lock DG]]<br />
* [[Master Lock M1 Magnum]]<br />
<br />
==== Combination padlocks ====<br />
* [[Master Lock No 175]]<br />
* [[Master Lock No 975]]<br />
* [[Master Lock Speed Dial]]<br />
* [[Master Lock Sphero]]<br />
<br />
<br />
== Gallery ==<br />
<gallery align="center"><br />
File:Mastercommercial.JPG|[[Master Lock No 1]]<br />
File:Master Lock No 2 front - FXE48766.png | [[Master Lock No 2]]<br />
File:Master Lock 3 - FXE47401.jpg|[[Master Lock No 3]]<br />
File:Master Lock No 4 front - FXE48772.png | [[Master Lock No 4]]<br />
File:Master Lock No 6 front - FXE48762.png | [[Master Lock No 6]]<br />
File:Master Lock No 8 front - FXE48777.png | [[Master Lock No 8]]<br />
File:MasterNo22.jpg|[[Master Lock No 22]]<br />
File:Master130.JPG|[[Master Lock No 130]]<br />
File:Master-140-front.jpg|[[Master Lock No 140]]<br />
File:Master-141-front.jpg|[[Master Lock No 141]]<br />
File:Master Lock 142 - FXE48039.jpg|[[Master Lock No 142]]<br />
File:Master Lock 150 - FXE47400.jpg|[[Master Lock No 150]]<br />
File:Master175XDLF-front.JPG|[[Master Lock No 175]]<br />
File:Master_Lock_410_LOTO,_red_-_FXE47411.jpg|[[Master Lock No 410]]<br />
File:Master 570.jpg|[[Master Lock No 570]]<br />
File:Master605.JPG|[[Master Lock No 605]]<br />
<!-- Master Lock No 930 --><br />
File:Master975-front.jpg|[[Master Lock No 975]]<br />
File:Master2240.JPG|[[Master Lock No 2240]]<br />
</gallery><br />
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== References ==<br />
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<references /><br />
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== External links ==<br />
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* [http://www.masterlock.com/ Master Lock website]<br />
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== See also ==<br />
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* [[Lock manufacturer]]s<br />
* [[Pin_tumbler |Pin-tumbler]]<br />
* [[Lock]]<br />
* [[Padlock]]<br />
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[[Category:Lock Manufacturers]]<br />
[[Category:Master Lock| ]]</div>Imaginary-Limit-3544