Master Lock 6121MK Padlock

• ProSeries Padlocks Designed for Commercial and Industrial Applications
• 2-1/8" (54mm) Wide Heavy Steel Body Withstands Physical Attack
  
• 1-1/8" (29mm) Tall, 5/16in (8mm) Diameter Hardened Boron Alloy Shackle 
• Dual Ball Locking Mechanism Resists Pulling and Prying
  
• Weather Tough Cover Protects Lock from Water, Ice, Dirt and Grime
• Shackle: 1-1/8" (29mm) Tall
• Keyway: 5-Pin W6000 (Standard)
• Cylinder: Rekeyable 5-Pin W6000 Cylinder with Pick-Proof Spool Pins
  
• Available Keyways: Also available with Master Lock W1, W15, W17, W27, W81 & W7000 Keyways (must specify keyway if different from Standard W6000)
  
• Master Keyed (MK):Each lock in the set will have its own unique key, and a Master Key will open all locks in the set. Master Keys (MK) are Sold Separate
  
• Specs_Width: 2-1/8" Wide; A: 5/16" (8mm); B: 1-1/8" (29mm); C: 7/8" (22mm)
  
• Best Used For: Severe Use on Construction Sites & Equipment; Security Gates & Fences; Trailers, Trucks & Towing 

For 6121MK Extra Cut Keys

Master Keys for No. 6121MK Locks