Master Lock 4NKA 3963 Brass Padlock With Bump Stop

• Commercial Grade Padlock Features Protection from Drilling & Prying
  
• 1-9/16" Wide Reinforced Laminated Brass Body for Superior Strength
• Hardened Steel Shackle for Extra Cut Resistance
• Non-Rekeyable, 4-pin W1 BUMP STOP Cylinder Prevent Lock Bumping
• Keying: Pre-Keyed to Key Number 3963 (KA# 3963); 2 Same Keys Included
• Specs_Width: 1-9/32" Wide; A: 9/32" (7mm); B: 3/4" (19mm); C: 5/8" (16mm)
  
• Best Used For: Construction Sites & Equipment; Industrial Storefront and Business Gates and Fences, Tool Cribs; Vending Machines

For 4NKA 3963 Extra Cut Keys