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Master Lock M1STS Commercial Magnum Padlock


Item normally ships out within 1-2 Weeks (excluding transit time). If out of stock it can take up to 3-4 weeks (excluding transit time). Specific options may or may not increase shipping time. For any reason, if there is a delay in shipping time we will notify you. Feel free to contact us if you have any concerns.


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Details: Master Lock M1STS Commercial Magnum Padlock

Enhanced Security and Weatherability for Commercial Applications

Stronger Defense Against the Elements

The weatherability of stainless steel combined with the strength of our commercial-grade laminated padlock means enhanced security for you.

Master Lock Commercial Magnum is a laminated padlock encased in stainless steel for improved weather resistance.

Its octagonal, chrome-plated boron carbide shackle and dual-ball bearing locking mechanism provide superior strength and protection.

Commercial Magnum offers a higher level of weatherability and security for application in outdoor, corrosive and caustic environments.


  • Octagonal boron-carbide shackle is 50% harder than hardened steel
  • Chrome-plated shackle for excellent rust resisitance
  • Stainless steel body cover for exceptional weatherability
  • Superior pry resistance with dual-ball bearing locking
  • Key to match existing 4-pin W1 systems
  • Edge® Key Control available


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Master Lock M1STS Commercial Magnum Padlock

Master Lock M1STS Commercial Magnum Padlock