The Master M1 KALJ STS A503 Steel Magnum 

The Master M1 KALJ A503 Is An Industrial-Grade Padlock That Provides High Levels of Security and Durability. 

• Features: 1-3/4" Steel Body
  
• Cylinder: Four-Pin (4) W1 Keyway
• Shackle: 2-1/2" (64mm) Tall Octogonal Shackles
  
• Specifications: A: 5/16" (8mm); B: 2-1/2" (64mm); C: 13/16" (21mm)
  
• Delivery: All Special Key Number Orders Have a 12-15 Day Factory Leadtime and Are Non-Returnable 

For M1 KALJ STS A503 Keys