Professional-Grade Container Security Sealing
For haulage operators, freight forwarders, and export businesses, compliance with international security standards is non-negotiable. Our High Security Bolt Seals meet the stringent ISO 17712:2013 classification for "H" (High Security) mechanical freight container seals, ensuring acceptance by customs authorities worldwide.
Understanding ISO 17712 Compliance
ISO 17712 establishes uniform procedures for classifying mechanical container seals. Only seals passing rigorous third-party testing earn "H" classification. Our bolt seals exceed these standards through:
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Tensile Strength Testing – Withstands forces exceeding 1,000kg
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Shear Resistance – Cutting strength greater than 340kg
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Impact Testing – Survives perpendicular and angled strikes
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Tamper Evidence – Shows clear visual indication of breach attempts
Product Features
🔒 High Security "H" Classification
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Clearly marked with "H" designation
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Accepted by UK HMRC as Class 1 High Barrier Seal
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Compliant with EU Regulation 2454/93, Article 386
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Meets US C-TPAT (Customs-Trade Partnership Against Terrorism) requirements
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ISPS Code compliant for maritime security
🔢 Unique Sequential Numbering
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Laser-engraved numbers on both bolt and locking body
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Prevents component substitution fraud
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Enables complete audit trails from origin to destination
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Numbered logs available for bulk orders
🛡️ Tamper-Evident Design
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Anti-spin construction prevents rotation removal
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Encapsulated ABS plastic coating shows damage clearly
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Frangible locking mechanism breaks upon cutting attempts
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Visual verification of seal integrity at a glance
💪 Robust Steel Construction
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Galvanized low-carbon steel bolt (8mm diameter minimum)
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Zinc chromate finish resists corrosion
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ABS plastic coating for high visibility and weather protection
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Breaking strength: 2,000kg+ tensile load
Technical Specifications
| Specification |
Details |
| Standard |
ISO 17712:2013 (H Class) |
| Compliance |
C-TPAT, EU 2454/93, ISPS Code |
| Material |
Galvanized steel with ABS coating |
| Bolt Diameter |
8mm (0.31") minimum |
| Total Length (closed) |
87mm (3.43") |
| Breaking Strength |
2,000kg / 4,409 lbs |
| Colors Available |
Yellow, Red, Blue, Green, White, Orange |
| Numbering |
Sequential laser-engraved |
| Pack Sizes |
10, 50, 100, 200, 500 units |
Recommended Applications
• International Export Shipments – Required for containerized cargo leaving UK ports
• High-Value Haulage – Secure electronics, pharmaceuticals, and luxury goods
• Cross-Channel Transport – Eurotunnel and ferry freight compliance
• Rail Freight – Wagon and intermodal container securing
• Bonded Warehousing – Customs-controlled storage facilities
• Military & Government – Sensitive equipment transport
• Hazardous Materials – Mandatory for ADR-compliant dangerous goods
How to Apply Bolt Seals Correctly
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Close Container Doors – Ensure both door rods are fully engaged in locking cams
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Align Hasp – Position the hasp over the locking rod handles
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Insert Bolt – Push the steel bolt through hasp holes until flush
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Engage Lock Body – Press the locking cylinder onto the bolt until it clicks
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Verify Locking – Attempt to pull apart to confirm engagement
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Record Number – Log the seal number on transport documentation (CMR, Bill of Lading)
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Photograph – Take clear image of sealed container for records
Removal: Use bolt cutters (minimum 24" handles) to cut the bolt shaft. Dispose of spent seals securely—do not reuse.
FAQs
Q: Are these bolt seals accepted by UK customs for export containers? A: Yes. These seals meet HMRC requirements for high-security mechanical seals under EU Regulation 2454/93. They are recognized by UK Border Force and accepted at all major UK ports including Felixstowe, Southampton, and Dover for international shipments.
Q: What should I do if a seal arrives damaged or shows signs of tampering before use? A: Never use a pre-damaged seal. Document the damage with photographs, record the seal number, and contact our customer service immediately. We maintain replacement stocks and can expedite replacements for urgent shipments. Always inspect seals upon delivery—using compromised seals may invalidate insurance coverage.
