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3/8” Hardened Stainless Steel Shackle – Aluminum Body Padlock

  • 1"



The UCS-10A is designed specifically for job boxes and tool chests. Built with 6061 aircraft-grade aluminum and a hardened stainless steel shackle, this lock keeps your tools safe. With the UCS interchangeable cylinder system, one key will unlock all job boxes and any of the different types of locks PACLOCK’s Universal Cylinder System offers.

PACLOCK’s UCS-10A is the only padlock ever designed from the ground up specifically for job boxes. With extensive research and field testing, PACLOCK has carefully assembled the last lock you’ll ever buy for your job box or tool chest. The UCS-10A comes with a hardened stainless steel shackle, ensuring a tough, weatherproof lock. Built with an innovative lever locking design, the UCS-10A padlock replaces the out-of-date Master Lock #5. If you rely on what’s in your job box, click below to secure your job box today.

Only available at The Home Depot

Features & Options


  • Universal Cylinder System
  • Available in PACLOCK Blue
  • Assembled in the U.S.
  • Hardened Stainless Steel Shackle
  • Solid brass actuator
  • 6-Pin, True-Security Serrated, and Spool Top Pins
  • Dual Ball-Bearing Toe and Heel Locking Design
  • Keys included: 2
  • Country of origin: USA
  • TAA compliant

Available Options

  • Keyed-Alike, Master-Keyed, or Grand Master-Keyed
  • Hardened Stainless Steel Shackle 1″, 2-1/2″

Specs & Dimensions


  • Body material: Aluminum
  • Body width: 2″
  • Shackle material: Hardened Stainless Steel
  • Shackle diameter: 3/8″
  • Shackle height (closed): 1″, 2-1/2″
  • Shackle spread (inside): 25/32″
  • Cylinder: UCS 6-Pin True Security Cylinder