Medeco 54525 Indoor/Outdoor 6-Pin Shrouded Padlock with 5/16" Shackle Diameter and 3/4" Shackle Clearance

Medeco 54525 Indoor/Outdoor 6-Pin Shrouded Padlock with 5/16" Shackle Diameter and 3/4" Shackle Clearance

The Medeco 54525 is a high-security System Series indoor/outdoor shrouded padlock engineered for demanding commercial applications where key control and physical attack resistance are paramount. Featuring a 5/16" shackle diameter, 3/4" shackle clearance, and a 7/8" shackle width, this 6-pin cylinder padlock is constructed with a boron alloy steel shackle that resists cutting and pulling attacks while maintaining exceptional ductility. The shrouded shackle design adds an additional layer of protection against bolt cutters and physical tampering, making it ideal for high-security indoor and outdoor environments. The black lockbody finish and hardened stainless steel cylinder inserts combine durability with a professional appearance suited for commercial use.

Key Features

• Shrouded Shackle Protection: The shrouded shackle design provides extra shackle protection against cutting attacks, significantly reducing vulnerability to bolt cutters and physical tampering.
• Boron Alloy Steel Shackle: Constructed from boron alloy steel with a 5/16" diameter and 3/4" clearance, the shackle resists cutting and pulling attacks while offering exceptional ductility to prevent brittleness.
• 6-Pin High-Security Cylinder: Hardened stainless steel inserts inside the 6-pin cylinder provide the ultimate defense against drilling and other forms of physical attack.
• Virtually Pick-Proof Tumbler System: A unique elevating and rotating tumbler pin system makes the lock virtually pick-proof for superior security performance.
• Medeco M4 Key Control: Patented M4 keys may only be duplicated by Medeco or an authorized Medeco service outlet and only at the owner's request, preventing unauthorized key duplication including protection against 3D printing via the Shuttle Pin movable element.
• Durable Machined Brass Cylinder Components: All Medeco cylinders are constructed of durable machined brass components, designed to last the life of the equipment.
• Flexible Keying Options: Padlocks can be keyed alike, keyed differently, or master keyed with existing door hardware systems to accommodate complex key management requirements.
• Available Shackle Configurations: Available in either a 5/16" or 7/16" shackle diameter; key retaining or non-key retaining options available; extended shackles available for indoor/outdoor models.

Certifications & Compliance

• Commercial Grade — Rated for Commercial Applications
• Patented Medeco M4 Key Control Technology — Utility Patent Protection Against Unauthorized Key Duplication

Technical Specifications

• Series: Medeco System Series Padlock
• Cylinder Technology: Medeco 4 (M4)
• Pinning: 6-Pin
• Shackle Diameter: 5/16"
• Shackle Material: Boron alloy steel (cutting and pulling resistant)
• Body Style: Shrouded
• Certification: UL 437 Listed
• Construction: Durable machined brass cylinder components; hardened stainless-steel cylinder inserts
• Warranty: 2-year manufacturer's warranty

Typical Applications

• Commercial Office Buildings and Corporate Campuses
• Industrial and Warehouse Facilities
• Educational Institutions and Campus Security
• Healthcare Facilities and Sensitive Equipment Areas
• Government and Municipal Buildings
• Outdoor Storage Units and Equipment Enclosures
• Retail Establishments and High-Value Asset Protection

Why Medeco?

Medeco System Series padlocks are engineered with hardened stainless steel cylinder inserts, boron alloy steel shackles, and patented M4 key control technology to deliver professional-grade security in the most demanding commercial environments. The combination of a virtually pick-proof elevating and rotating tumbler pin system with shrouded shackle construction ensures comprehensive protection against drilling, cutting, pulling, and unauthorized key duplication. For applications where high security and key control are non-negotiable, Medeco delivers a trusted, purpose-built solution.