Master Lock 6321KA 16G821 Padlock 

• Iron Shroud Protects from Bolt Cutters
• ProSeries Locks Designed for Commercial and Industrial Applications
• 2-1/8in (54mm) Wide Heavy Steel Body Withstands Physical Attack
  
• Dual Ball Locking Mechanism Resists Pulling and Prying
  
• Cylinder: Rekeyable 5-Pin W6000 Cylinder with Pick-Proof Spool Pins
  
• Keyed Alike (KA): All Locks Will Come With the Same 2 Keys (16G821)
• Master Lock: All Special Orders Are Keyed & Shipped Direct From Master Lock
• Delivery: All Special Key Number Orders Have a 10-12 Day Factory Lead Time and Are Non-Returnable
• Shackle: 3/4" (19mm) Tall, 5/16" (8mm) Hardened Boron Alloy Shackle for Maximum Cut Resistance
  
• Specs_Width: 2-5/8" Wide; A: 5/16" (8mm) B: 3/4" (19mm); C: 7/8" (22mm)
  
• Best Used For: Severe Use on Construction Sites & Equipment; Security Gates & Fences; Trailers, Trucks & Towing 

For 6321KA 16G821 Extra Cut Keys