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Viro Monolith Lock – Engineered for Maximum Security with 1/2″ Pewag Chain

The Viro Monolith is a purpose-built, high-security lock designed to be used with our 1/2″ Pewag square link security chain. Its monolithic body design eliminates grip points, making it nearly impossible to attack with common hand tools like bolt cutters, saws, or pry bars.

For added protection, the Monolith features a rotating anti-drill plate and pick-resistant counterpins that help guard against lockpicking and drilling attempts. This combination of armored construction and precision internal defense makes it one of the most secure locks available for commercial, industrial, or personal use.

Each lock comes with two keys sealed in a tamper-evident envelope and includes a unique ownership card. The card contains your key code-required for making duplicates-so be sure to store it safely.

Key Features:

• Built for Pewag 1/2″ Chain: Designed to work seamlessly with our most robust security chain.
• Tool-Resistant Design: Solid body offers no access points for cutting, prying, or sawing.
• Internal Theft Protection: Rotating anti-drill plate and pick-resistant counterpins.
• Secure Key Control: Includes 2 keys sealed with a unique ownership card for controlled duplication.
• Ideal For: Securing trailers, gates, buildings, storage units, motorcycles, and high-value equipment.

Need Replacement Keys?

Contact Keyline USA at 800-891-2118 or visit their website to request duplicates using your ownership card.

California Residents: WARNING