Designed for maximum security, this padlock uses durable disc tumblers to prevent tampering and key jamming. Its tough, 8 mm hardened boron steel shackle resists cutting and drilling"”perfect for trucking and rail use.

• Secure disc tumbler mechanism with no critical springs
• Shackle diameter 5/16 inch (8 mm)
• Shackle length 1 inch (25 mm)
• Open shackle design (not shrouded)
• Restricted Sentry keyway with two keys included
• Built to withstand harsh transportation conditions
• Sold individually