Master Lock M1 STS KA 3503 Padlock 

• Stainless Steel Body Cover
• 1-3/4" (44mm) Wide Laminated Steel Body
  
• Top & Bottom Plates for Exceptional Weatherability
• Dual Ball Bearing Locking For Superior Pry Resistance
• Rust Resistant Chrome-Plated Octagonal Boron Carbide Shackle
  
• Cylinder: 4-Pin W1
• Shackle: 1" (25mm) Tall
  
• Keyed Alike (KA): Pre-Keyed to Key Number 3503 (KA# 3503); 2 Same Keys  
• Specs_Width: 1-3/4" Wide; A: 5/16" (8mm); B: 1" (25mm); C: 13/16" (21mm)
• Delivery: All Special Key Number Orders Have a 12-15 Day Factory Leadtime and Are Non-Returnable 

For M1STS KA 3503 Extra Cut Keys