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The Master Lock No. 1178 ProSeries® Resettable Combination Padlock is designed for commercial/industrial applications and features a 2-1/4in (57mm) wide die cast body for strength & durability and a 1-1/16in (28mm) tall, 3/8in (10mm) octagonal boron-carbide shackle for ultimate cut resistance. A set-your-own combination feature offers convenience and security with 10,000 possible combinations – no reset tool required – and a deadlocking mechanism protects against prying, shimming and rap attacks.

  • ProSeries® resettable combination locks are designed for Commercial/Industrial applications
  • Set-your-own 4-digit combination for convenience and security; 10,000 possible combinations
  • No reset tool required
  • Large ergonomic dials with exclusive blind dial feature permit operation with gloves, in low light or complete darkness
  • Deadlocking mechanism protects against prying, shimming and rap attacks
  • Shackle seal and dial dust cover protect internal components and dials for trouble-free operation
  • 2-1/4in (57mm) wide die cast body for strength and durability
  • 1-1/16in (28mm) octagonal boron-carbide shackle for excellent cut resistance