Tri Circuit Lock 50mm Security lock

The Tri-Circuit 50mm Security Lock (often associated with the Tri-Circle brand) is a heavy-duty padlock designed for securing homes, shops, and warehouses. It typically features a robust iron or brass body with a hardened steel shackle for enhanced cut resistance. 

Key Features and Specifications

• Body Material: Constructed from original China iron or solid brass to provide durability and rust resistance.
• Shackle: Made of hardened steel, which offers superior resistance against cutting, sawing, and prying.
• Locking Mechanism: Uses a precision pin-tumbler system (often 5-pin) and sometimes a double-locking mechanism with ball bearings to prevent tampering and prying.
• Size: 50mm body width, making it a versatile medium-to-large size suitable for gate chains, storage units, and toolboxes.
• Keys: Typically supplied with 3 keys, though some variants may offer up to 4 or 6 keys for better management. 

Product Options

The following 50mm security locks are representative of this category: 

• Tri-Circle Iron Padlock 50mm
  • Security: J and G Holdings highlights a double-locking mechanism using two ball bearings that engage the shackle.
• Tri-Circle Brass Padlock 50mm
  • Materials: Praised by Lockstation for its solid brass body, which offers long-lasting protection and smooth operation.
  • Convenience: Available in "keyed alike" versions, allowing one key to fit multiple padlocks.
• KIKO 50mm Heavy Duty Iron Padlock
  • Keys: Features a 4-key system for enhanced security and management according to Daraz listings.
  • Resistance: Includes a precise keyway design specifically to resist picking and tampering.