Master Lock 1525 Combination Padlock with Key Control


Control Keys Sold Separately

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Master Lock 1525 Combination Padlock with Key Control

The Master Lock No. 1525 3-digit combination padlock includes key control feature for supervisory access along with many enhanced security features like the exclusive BlockGuard® Anti-Shim technology, hardened steel shackles and double-reinforced stainless steel casing. Designed to fit lockers with a padlock eye of at least 5/16in (8mm) diameter, these locks provide multiple customization options to fit your needs.

Product Features

  • Patented BlockGuard® Anti-Shim Technology withstands attempts to violate the latch mechanism
  • Includes combination chart to facilitate lock system administration
  • Key control feature provides supervisory access; specify key to match existing system or factory assigned
  • 1-7/8in (48mm) wide double-reinforced stainless steel body withstands abuse
  • 3/4in (19mm) tall, hardened steel shackle for extra cut resistance
  • Easy 3-number dialing with automatic scrambling feature to prevent reopening of lock
  • Optional color dials, locks sold in groups of combinations, back case printing

Product Specifications

Product Number
Shackle Diameter
9/32" (7mm)
Vertical Clearance
3/4" (19mm)
Horizontal Clearance
13/16" (20.5mm)



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Master Lock 1525 Combination Padlock with Key Control

Master Lock 1525 Combination Padlock with Key Control