Cost-Effective Physical Security: Block Bar Barrier Container Seals
Securing your supply chain shouldn’t require compromising your operational budget. The BLOCK BAR metal barrier seal is explicitly designed to offer maximum physical defense at a highly competitive price point. Recognized as the most economical adjustable barrier seal available on the market, these heavy-duty container seals are the perfect solution for Indian logistics companies needing reliable, cost-effective security across large shipping fleets.
Immobilize Freight Doors with Galvanized Steel
The operational mechanism of the Block Bar is both simple and highly effective. Instead of just locking a single latch, this device acts by physically clamping the two central keeper bars of the shipping container doors together. Once installed, the doors cannot be opened, even if standard locking points are compromised. Manufactured entirely from industrial-grade galvanized steel, these barrier container seals resist severe weather conditions and require heavy-duty industrial cutting tools to remove, making them a massive deterrent to cargo thieves and unauthorized access.
Technical Drawing

Figure 1: Technical dimensions of the 3.5x250mm ISO 17712 High Security Cable Container Seal.
Technical Specifications: Block Bar Container Seals
| Feature | Technical Measurement |
|---|---|
| Product Type | Economic Adjustable Barrier Seal |
| Material Composition | Galvanized Steel |
| Barrier Dimensions | Width: 35 mm (1″ 3/8″) / Length: 480 mm (18″ 57/64″) |
| Locking Mechanism | Adjustable clamping on central container bars |
| Primary Applications | Shipping Containers, High-Volume Logistics fleets, Freight Transport |
Metallic Engraving for Supply Chain Traceability
Despite being the most cost-effective option in our catalog, the Block Bar does not compromise on essential logistics tracking. To maintain a strict security ledger, progressive numbering is durably engraved directly onto the closure pin using a metallic engraving process. We provide sequenced numbering up to 6 digits, alongside additional customization capabilities of up to 10 characters on one line, ensuring these container seals perfectly align with your warehouse manifesting software.
Bulk Packaging for Cost-Effective Fleet Deployment
Engineered for B2B logistics networks that prioritize both security and budget, these economic barrier container seals are supplied in bulk cartons designed for efficient warehouse storage and handling.
They are securely packed with 25 pcs per carton. The standardized carton size is 50x20x15 cm (19″ 11/16” x 7″ 7/8” x 5″ 29/32“), with a total carton weight of 13.5 kg (29 lb), making them easy to distribute across your freight network.




