QR Heavy Duty Bolt Seal
Heavy duty bolt seals
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Product Information
The EnaBolt 5B QR is a high-security bolt seal engineered to provide maximum protection for cargo and containers while offering advanced digital traceability through integrated QR code identification. Fully compliant with ISO/PAS 17712:2013 and C-TPAT requirements, this seal is ideal for international shipping, freight forwarding, and logistics operations where tamper evidence, compliance, and efficient tracking are essential.
Its innovative anti-spin design helps prevent and expose attempts to manipulate the seal using high-speed rotational tampering techniques, ensuring the integrity of secured shipments throughout transit. Manufactured using a one-time injection moulding process, the EnaBolt 5B QR delivers enhanced tamper-evident performance by making any attempt at unauthorised access immediately visible.
The seal features a large flag area that supports clear laser marking, including serial numbers, barcodes, company logos, and now QR codes for rapid digital verification and scanning. The addition of QR code technology allows users to quickly access seal data, improve cargo tracking, streamline inspections, and enhance audit and chain-of-custody procedures using mobile devices or scanning systems.
Its dual-colour injection moulding design improves visual identification while adding another layer of protection against counterfeiting or substitution. Produced through automated manufacturing processes, the EnaBolt 5B QR ensures consistent quality, reliability, and uniformity across production batches.
Built to withstand harsh transport and environmental conditions, the EnaBolt 5B QR is specifically designed for securing intermodal shipping containers, trailers, and freight units worldwide. Removal requires bolt cutters, ensuring the seal remains a strong and reliable deterrent against tampering once applied.
Combining high-security performance with modern QR-enabled traceability, the EnaBolt 5B QR provides a secure, efficient, and globally compliant sealing solution for today’s supply chain and cargo security requirements.



Comparison Table
| EnaBolt 1c | EnaBolt 2a | EnaBolt 3 | EnaBolt 4 | EnaBolt 4a | EnaBolt 5a | EnaBolt 5b | EnaBolt 6 | EnaBolt 7 | EnaBolt 8 | EnaBolt mini | HanaLock | |
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| barrel length | 31mm | 37.0mm | 18.0mm | 27mm | 33.5mm | 33.8mm | 34.4mm | 33mm | 34mm | 31mm | 25mm | 35mm |
| barrel diameter | 23.6mm | 23.5mm | 20.0mm | 18mm | 17mm | 24.5mm | 24.2mm | 20.5mm | 15mm | 22mm | 12.7mm | 22.8mm |
| pin length | 87.4mm | 84.5mm | 87.0mm | 70mm | 71mm | 85.5mm | 87mm | 74.0mm | 74mm | 81.6mm | 37mm | 76mm (uncoated) 78.5mm (coated) |
| pin diameter | 8.0mm steel pin (11.0mm inc. coating) |
8.0mm steel pin (10.0mm inc. coating) |
4.0mm cable wire | 5.0mm steel pin (7.0mm inc. coating) |
5.0mm steel pin (7.2mm inc. coating) |
8.0mm steel pin (11.0mm inc. coating) |
8.0mm steel pin (11.8mm inc. coating) |
8.0mm steel pin | 8.0mm steel pin (11.0mm inc. coating) |
8.0mm steel pin | 4mm | 8.0mm (uncoated) 12.6mm (coated) |
| material | steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel abs plastic |
steel | steel abs plastic |
steel abs plastic |
| locking distance | 54.9mm | 44.0mm | 54.0mm | 44.0mm | 40mm | 48mm | 48mm | 48mm | 48mm | tba | 20mm | 54mm (uncoated) 41mm (coated) |
| break strength | >1,500kg-f | >1,500kg-f | >660kg-f | >500kg-f | >500kg-f | >1,500kg-f | >1,500kg-f | >1,200kg-f | >1,500kg-f | >1,500kg-f | >300kg-f | >1,000kg-f |
| export friendly | yes | yes | no | no | no | yes | yes | yes | yes | yes | no | yes |
| iso/pas 17712 | yes | yes | yes | yes | yes | yes | yes | yes | ||||
| anti-spin | yes | yes | no | no | yes | yes | yes | yes | yes | yes | no | yes, limited |
| encapulation | no | no | no | no | no | no | no | yes | no | no | no | |
| feature | flexible cable | dual-colour | all-metal build | 180° rotation limit |
Specifications
| Features | Seals are ISO/DIS 17712.3 and C-TPAT compliant. 8mm diameter steel pin. Barrel and pin have a 18mm diameter steel perch so the seal will stay applied to a standard ISO container even when the coating has been removed. Made of galvanised low carbon steel for durability and reliability. ABS coating provides evidence of tampering of the seal body. Anti-spin construction to defeat high-speed spin tampering techniques. Barrel and pin are connected as a matched pair for convenience. |
| Material | Pin: Steel Barrel: Steel Body: ABS + PP plastic |
| Colours | Yellow Blue Orange Green Red White |
| Dimensions | Barrel diameter: 24.2mm Barrel length: 87mm Pin diameter: 8mm (steel), 11.8mm (inc. coating) |
| Markings | Pin: Serial number Barrel: Serial number & barcode (Code 128) |
| Print method | Laser engraved |
| Breaking strength | Tensile strength >13kN |
| Applications | Securing intermodal shipping containers for international and domestic transport Locking cargo trailers and freight trucks during transit Protection of railway containers and logistics wagons Securing warehouse storage units and high-value goods Port and terminal cargo security to meet customs and C-TPAT requirements Securing bulk shipments in supply chain operations Protection of high-value or sensitive shipments, including electronics, pharmaceuticals, and chemicals Ensuring compliance with regulatory and insurance requirements for cargo Temporary high-security locks for export or import containers Use in customs and border control inspections to provide tamper-evident verification |
| Customisations | Custom markings Colours Numbering Barcode & QR Codes |
| For more information | bsealed.co/enabolt5b |











