China Most Popular Disposable Container & Cargo Vehicle Seals Anti-Spin Round Type Bolt Seal Lock

Commonly used on shipping and intermodal containers, and widely used for ground transportation, All kinds of ISO compliant containers,trailers, Trucks ,Van trucks,Tank trucksDoors,cars,shipping, logistics, Postal services, Courier services, Bags, Airline Luggage,Airline,Liquor, Carts,Food Carts, Trolleys security lock. Applied to cargo trucks, trailers, and railway freight cars, these seals ensure cargo integrity throughout the journey under harsh environmental conditions, thanks to their high tensile strength and durability. Some advanced high preservation seals integrate ‌RFID chips‌, enabling remote reading and synchronization with GPS-enabled locking systems and digital logistics platforms for real-time, traceable security management.High-security disposable container seals are crafted with durability and tamper-resistance at their core. Typically forged from hardened steel or a combination of Q235 steel and ABS plastic, they boast exceptional tensile strength, often exceeding 700 kilograms. This formidable construction ensures that the seal can withstand extreme physical force, harsh weather conditions, and the rigors of long-haul transportation, whether by sea, land, or air.The design of these seals varies to suit different application needs, but common elements include a unique serial number, laser-engraved for permanent identification, and a tamper-evident mechanism. Once locked, the seal cannot be removed without visible damage, providing an immediate visual cue of any attempted breach. Some advanced models also incorporate RFID technology or QR codes, enabling seamless digital tracking and verification throughout the supply chain.Types and Applications1. Bolt SealsBolt seals are the gold standard for high-security applications, particularly in international shipping. Resembling heavy-duty bolts, they are inserted into the locking holes of container doors and secured with a pin that cannot be extracted without breaking the seal. Their solid steel construction makes them virtually impossible to tamper with using standard tools, making them ideal for high-value cargo, hazardous materials, and cross-border shipments subject to strict customs inspections.

1.Low cost with durable metal parts & easy use service.

2.The product is a disposable security lock with anti-counterfeiting and tamper-proof features.

3.Factory direct sales. Customizable samples available. Strict quality control.

4.With rich export experience and export qualifications, we can offer various transportation methods including sea, land and air.

5.Has obtained multiple international certifications and holds the ISO17712 certificate, with excellent quality.

6.Exceptional Tamper Resistance‌
Crafted from high-tensile steel and equipped with advanced locking mechanisms, high security bolt seals offer robust protection against unauthorized access.

‌7.Compliance with International Standards‌
Most high security bolt seals meet the ISO 17712:2013 standard and are C-TPAT compliant, making them universally accepted in global shipping. Adhering to these standards ensures smooth customs clearance, reduces delays at major ports, and meets the security requirements of international trade regulations.

8.Cost-Effective Security Solution‌
Despite their high security features, bolt seals offer a cost-effective way to protect cargo. Their simple design allows for easy and quick installation, reducing labor costs.

9.Enhanced Traceability and Accountability‌
Each bolt seal is marked with a unique, laser-engraved serial number, barcode, or even custom customer logos. These markings enable precise tracking and auditing of shipments throughout the supply chain. In case of theft, damage, or disputes, the unique identifier provides a clear evidence chain, helping to trace responsibility and resolve issues efficiently. This level of traceability enhances transparency and accountability in logistics operations.

10. Versatile Application‌
High security bolt seals are suitable for a wide range of cargo transportation scenarios, including shipping containers, truck doors, trailers, and railway wagons.

1.Q：What kind of company are we ?
A： Shandong Shengtang Intelligent Technology Co., Ltd. is a leading professional manufacturer of disposable security seals in China. Established in 2012, we have over 14 years of industry experience, supported by a 15,000㎡ modern factory, more than 200 skilled employees, and 450 advanced production machines, ensuring stable capacity and reliable global supply.Our main products include Plastic Seals, Bolt Seals, Cable Seals, Meter Seals, Padlock Seals, and Metal Seals Our products are exported to major global markets including Europe, North America, Southeast Asia, the Middle East, and South America.

2.Q：How can we guarantee products quality?
A: We implement a strict two-stage quality control system to ensure consistent and reliable product quality:
Pre-production samples are always provided for customer approval before mass production;
Final random inspection is conducted prior to shipment;

3.Q:what products can you buy from us?
A: We manufacture a full range of disposable security seals, including:
Plastic Seals, Cable Seals, Bolt Seals, Meter Seals, FRID Seals,Padlock Seals,Metal Strap Seals, Barrier Seals, Animal Ear Tags and others.
We also offer customized solutions, such as LOGO printing, laser serial numbering, barcodes, qrcode and special packaging if needed.

4. Q: Why should you buy from us not from other suppliers？
A：We have 14 years experiences, 300 sets of models with different styles , meet your different demands with fast delivery. All our material is environmental, and we won many honors from government.
We offer strong and flexible customization solutions for customers, helping customers create differentiated and competitive security seal products.
We have a comprehensive pre-sales service , In-Sales Service, and after-sales service system, to provide our customers with end-to-end services.

5.Q:Do you accept custom orders?
A: Yes. We provide comprehensive OEM & ODM customization services, including:
LOGO printing and unique serial numbering
Customized sizes, colors, materials, and packaging

6.Q:What certifications do you have?
A:We maintain a complete and internationally recognized certification system, including:
ISO 9001 – Quality Management System
ISO 14001 – Environmental Management System
ISO 45001 – Occupational Health & Safety Management System
ISO 17712 – High-Security Seal Certification
Third-party test reports from SGS and other authorized institutions