Ultimate Container Physical Security
When standard padlocks fail, our Hardened Steel Container Lock stands firm. Engineered from solid hardened steel with a boron alloy shackle, this professional-grade security device provides the highest level of mechanical protection available for shipping containers.
Advanced Security Engineering
🛡️ Hardened Steel Construction
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Body: Solid hardened steel (not cast or pressed) resists impact and cutting
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Shackle: Boron alloy steel, hardened to 55+ HRC (Rockwell hardness)
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Shackle Diameter: 12mm+ (exceeds CEN Grade 4 requirements)
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Shackle Design: Straight/block style for lock box compatibility
🔐 Anti-Attack Features
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Anti-Drill Protection: Rotating hardened steel discs protect the locking mechanism
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Anti-Pick Cylinder: 6-pin tumbler with mushroom pins prevents lock picking
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Anti-Bump Technology: Special pin configurations resist bump-key attacks
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Shutter Protection: Fits entirely within lock box housing—no exposed shackle to cut
🌧️ Weather Resistance
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Galvanized Finish: Zinc coating prevents rust in coastal and industrial environments
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Corrosion Resistance: Electro-phoretic coating on internal components
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All-Weather Operation: Functions reliably from -20°C to +60°C
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Drainage Design: Prevents water accumulation in keyway
CEN Grade 4 Certification
The Central European Norm (CEN) grading system measures lock security objectively:
| Test |
CEN 4 Requirement |
Our Lock Performance |
| Bolt Cutter Resistance |
12mm cutters, 5 minutes |
Passes 14mm cutters |
| Drill Resistance |
5 minutes manual drilling |
8+ minutes power drill resistant |
| Impact Resistance |
5 strikes, 50Nm |
Withstands 10+ strikes |
| Corrosion Resistance |
240 hours salt spray |
500+ hours tested |
| Close Shackle Gap |
<5mm clearance |
1.5mm precision gap |
CEN Grade 4 is classified as "High Security"—suitable for high-value commercial applications including containers, warehouses, and perimeter gates.
Perfect Fit for Container Security
Lock Box Compatibility
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Fits standard welded lock boxes on 20ft and 40ft containers
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Suitable for left-hand and right-hand door configurations
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Clearance: 80mm body width, 30mm shackle height
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Weight: Approximately 1.2kg (substantial feel indicates quality)
Key Management
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3-5 Keys Supplied (depending on model variant)
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Numbered Keys for easy identification
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Rekeyable Option – Master key systems available for fleet operators
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Key Profile: Restricted section prevents unauthorized key duplication
Ideal Applications
• Self-Storage Facilities – Protect customer goods with insurance-approved locks
• High-Value Haulage – Secure electronics, alcohol, tobacco, and pharmaceutical transports
• Construction Site Containers – Prevent tool theft from site cabins and material stores
• Box Park Retail – Overnight security for pop-up retail and food units
• Agricultural Storage – Protect expensive machinery and chemicals
• Disaster Relief – Secure aid supplies in temporary storage
• Military & Defence – Meet MOD security requirements for equipment storage
Installation & Usage Guide
Fitting the Lock:
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Open container doors using existing lock
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Ensure lock box interior is clean and free from debris
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Align padlock shackle with lock box hasp
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Slide shackle through hasp and close firmly
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Verify lock sits flush within lock box (no exposed metal)
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Test key operation before closing doors
Maintenance:
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Quarterly: Apply graphite lubricant to keyway (avoid oil-based products that attract dirt)
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Bi-annually: Inspect for corrosion; touch up zinc coating if damaged
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Annually: Check shackle for scoring or cutting attempts; replace if compromised
Winter Care: In freezing conditions, warm the key in your hand before insertion to prevent ice binding. Never force a frozen lock—use de-icer spray designed for padlocks.
Why Invest in Premium Container Security?
Insurance Compliance Many insurers require CEN Grade 4+ locks for high-value container contents. This lock meets or exceeds these requirements, potentially reducing premium costs.
Theft Deterrence Opportunistic thieves target easy prey. The visible "CEN 4" marking and substantial weight of this lock signal professional security, encouraging criminals to move on.
Long-Term Value While budget locks require replacement every 1-2 years, this hardened steel lock offers 10+ years of service with minimal maintenance. Cost-per-year analysis favors premium security.
Manufacturer Guarantee Backed by a 10-year manufacturer's guarantee against mechanical failure and corrosion damage (terms apply).
FAQs
Q: Will this lock fit my container if I don't have a lock box installed? A: This lock is specifically designed for containers WITH lock boxes (the steel shroud that protects the padlock). Without a lock box, the padlock is exposed and vulnerable to bolt cutters. If your container lacks a lock box, we strongly recommend installing one first, or consider our cross-bar style container locks that don't require lock boxes.
Q: How does CEN Grade 4 compare to other security ratings like Sold Secure? A: CEN (Central European Norm) is the European standard for padlock security, recognized across the EU including the UK. Grade 4 is "High Security" suitable for commercial applications. Sold Secure is a UK testing house with Bronze, Silver, Gold ratings—CEN Grade 4 approximately equals Sold Secure Gold. For insurance purposes, always check whether your policy specifies CEN or Sold Secure standards.
Q: What should I do if the lock becomes difficult to open? A: Difficult operation usually indicates debris in the mechanism or lack of lubrication:
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Spray graphite lubricant into the keyway
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Insert and remove the key several times to distribute
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If still stiff, check for physical damage to the lock box alignment
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Never use WD-40 or oil-based lubricants as they attract grit
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If problems persist, contact us for warranty assessment—forcing the lock may damage the mechanism
