Description:
Heavy duty Bolt Seal,Self-locking by finger pressureHigh grade Q235A steel (pin & bush) and ABS plastic material, The product is a one-time use security lock, featuring high security, anti-counterfeiting and anti-theft functions. It can usually be used as a security lock for handling and transporting containers and goods in logistics. Usually, as anti-theft locks for customs sea transportation, locks for oil fuel transportation trucks, tanker trucks, trailers, etc. The factory direct price is relatively low, and it also supports customization of colors and printing content. High-quality sealing bolt seal supports laser printing. bolt seals can be customized with company logos, barcodes, serial numbers, etc. Factory safety packaging, supports customized packaging, fast delivery, good quality.
High-Security One-Time Use Design
The ST8708 container bolt seal is a single-use security lock designed to provide maximum protection for containers, trailers, and truck doors. Once the steel pin is inserted into the locking bush, it self-locks with finger pressure and cannot be removed without breaking the seal. Any tampering attempt leaves clear evidence, ensuring cargo integrity and accountability throughout the transportation process. This one-time use design is ideal for high-security logistics, customs-controlled shipping, and fuel or tanker transport applications.
Heavy-Duty A3 Steel Pin and Bush
The pin and bush are crafted from high-grade Q235A steel, offering excellent strength and resistance to cutting, prying, or forced removal. With an 8 mm pin diameter, 87 mm height, and 22.5 mm width, the ST8708 bolt seal provides robust physical protection for high-value or sensitive shipments. Its strong steel construction ensures reliability in demanding logistics and transportation environments.
Durable ABS Plastic Outer Body
The outer casing is made of durable ABS plastic, which protects the internal steel components from corrosion, weather exposure, and mechanical impact. The ABS layer also enhances handling and provides a smooth surface for high-quality laser printing. This combination of steel and ABS ensures long-lasting performance for both indoor and outdoor operations.
Anti-Spin Self-Locking Mechanism
The ST8708 features an anti-spin design that prevents the pin from rotating within the lock body after insertion. This ensures that the seal cannot be manipulated or loosened once applied, providing an extra layer of security for containers, trailers, and tanker trucks. The finger-press self-locking system allows for quick installation without additional tools.
Permanent Laser Printing for Traceability
The seal supports laser printing for serial numbers, company logos, barcodes, and QR codes. Permanent, high-quality markings improve traceability, inventory management, and inspection verification. Custom printing also enables brand identification and operational control across logistics networks.
Certified Quality Assurance
The ST8708 is manufactured under strict quality control and complies with ISO 9001 and ISO 17712 standards. These certifications ensure consistent quality, durability, and reliability for high-security applications in international shipping, container transport, and industrial logistics.
Custom Colors and Branding Options
Available in red, yellow, blue, green, white, and customized colors, the ST8708 can meet project-specific or corporate color requirements. Color-coding allows easy identification of containers, shipments, or security levels, streamlining operational management for logistics teams.
Wide Range of Applications
The ST8708 bolt seal is suitable for securing shipping containers, truck doors, tanker trucks, trailers, fuel transport vehicles, and other high-security cargo. Its tamper-evident design helps prevent unauthorized access, theft, and substitution while maintaining reliable protection for valuable shipments.
Bulk Packaging for Large-Scale Deployment
For efficient storage and distribution, the ST8708 is packaged in boxes of 10 pieces, with 250 pieces per carton (50 × 32 × 13 cm). This bulk packaging format ensures convenient handling, fast delivery, and easy deployment for logistics providers, shipping operators, and industrial transport companies.
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Model No |
ST8708 |
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Brand Name |
SHENGTANG |
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Material |
ABS+A3 steel |
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Color |
Red,yellow, blue，green, white and customized color |
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Height |
87mm |
|
Pin Diameter |
8mm |
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Width |
22.5mm |
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Printing type |
Laser printing |
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Printing content |
Numbers, logo, barcode， Qrcode, etc. |
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Certificate |
ISO9001, ISO17712, etc |
|
Package |
10pcs/box, 250pcs/ctn，carton size:50*32*13cm |
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.
1.Low cost with durable metal parts &Adjustable length and easy use service.
2.The product is a disposable security lock with anti-counterfeiting and tamper-proof features.
3.Corrosion and Aging Resistance: Metal materials (Stainless steel and aluminum alloy) offer excellent salt spray resistance, making them suitable for corrosive environments such as coastal and chemical industrial areas.
4.High Tensile Strength: Standard steel cable seals can withstand a tensile force of up to 300kg, preventing accidental disconnection due to external pulling forces.
5.Has obtained multiple international certifications and holds the ISO17712 certificate, with excellent quality.
1.Q:Who are we?
A:We are based in Shandong, China, start from 2012, sell to Mid East, South Asia, Northern Europe,Africa, North America, Western Europe. There are total about 200-300 people in our office.
2.Q:How can we guarantee quality?
A:Always a pre-printing sample before mass production;Always final Inspection before shipment;
3.Q:what can you buy from us?
A:bolt seal,cable seal,plastic seal,meter seal,metal strap seal, etc.
4.Q:Why should you buy from us not from other suppliers?
A:12 years experiences, 300 sets of models with different style , meet your different demands with fast delivery. All our material is environmental, we won many honors from government. Our goods are popular in 300 countries.
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
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