Master Lock 51mm Magnum Padlock Laminated Steel - Boron Carbide Shackle

• Dual-Armor™ protection: laminated steel core for strength surrounded by stainless steel and zinc outer components for weather resistance.
• Tough-Cut™ octagonal boron-carbide shackle is 50% harder than hardened steel.
• Dual ball bearing locking for maximum pry resistance.
• Reinforced body bumper for scratch resistance.
• 4-pin cylinder for increased pick resistance.
• Available in thermoplastic covered options for even greater weather resistance.
• 2 Keys Included