C-Series Padlocks

Mul-T-Lock’s popular C-Series heavy duty, patented High Security padlocks offer a robust design, superior locking and plenty of options. Also equipped with a protective shutter to prevent dust contamination and drainage holes to prevent freezing, the C-series Line is available in many models with varying body sizes and shackle diameters and clearances. This versatile line is sure to meet your padlock needs.


  • UL437 Listed for Pick and Drill Resistance
  • Protective Shutter to Prevent Dust Contamination
  • Drainage Holes to Prevent Freezing


  • Offered in Both Key Retaining (Key Cannot Be Removed Unless Padlock is Locked) and Non-Key Retaining Versions
  • Pop and Removable Shackle Styles Available
  • High Picking, Drilling, and Bumping Resistance
  • Supported by Mul-T-Lock’s Key Control Systems


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