Master Lock No. M50 Magnum Discus Lock 

• Magnum is the #1 Choice of Professionals
• 3-1/8in (79mm) Wide Laminated Steel Body
• Reinforced Body Bumper for Scratch Resistance
• Dual Ball Bearing Locking For Superior Pry Resistance
• Octagonal Boron Carbide Shackle is 50% Harder than Hardened Steel
• Dual Armor Protection: Laminated Steel Core Insulated by Stainless Steel & Zinc Outer Components for Weather Resistance
  
• Shackle: 11/16" (17mm) Tall
• Cylinder: 4-Pin W1 Cylinder
• Keyed Different (KD):Each Lock Will Come With its Own Set of Keys, All Sets Different; Master Lock Does Not Take Special Key Requests for No. M50 Locks
  
• Specs_Width: 3-1/8" Wide; A: 7/16" (11mm); B: 11/16" (17mm); C: 1-7/32" (31mm)
  
• Best Used For: Storage Unit Locks - Severe Use on Storage Units & Storage Lockers; Garage Lock, Shed Lock, Trailer Lock & Moving Truck Lock 

For No. M50 Extra Cut Keys