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 ST8701 container bolt seal is engineered as a single-use security lock designed to provide reliable protection for containers, fuel tanks, and cargo transportation systems. Once the bolt pin is inserted into the locking bush and pressed into place, the seal automatically locks and cannot be removed without breaking the structure. Any attempt to tamper with or remove the seal will result in visible damage, making it easy to identify unauthorized access. This one-time use design ensures strong security control and improves traceability in logistics and cargo handling operations.
Strong A3 Steel Bolt Construction
The locking pin and bush are manufactured from high-grade A3 steel, providing excellent mechanical strength and resistance to cutting or forced removal. The solid steel bolt structure helps maintain the integrity of the seal even under heavy stress during transportation. With an 8 mm pin diameter and a total height of 85 mm, the bolt seal offers strong physical protection for container doors, tanker trucks, and trailer locking systems.
Durable ABS Protective Coating
The outer body of the seal is covered with durable ABS plastic, which protects the internal steel structure from environmental exposure and corrosion. The ABS coating also improves visibility and handling while allowing clear printing of identification markings. This durable outer layer ensures stable performance in outdoor environments and long-distance transportation conditions.
Easy Finger-Press Self-Locking Operation
The ST8701 bolt seal features a convenient self-locking design that allows quick installation by simple finger pressure. Once the pin is inserted into the lock body, it automatically locks into place without the need for additional tools. This simple installation process helps logistics operators and inspection teams seal containers quickly while maintaining high security standards.
Permanent Laser Marking for Identification
Each bolt seal supports high-quality laser printing to provide clear and permanent identification. Sequential numbers, company logos, barcodes, and QR codes can be printed according to operational requirements. These markings remain visible during transportation and handling, helping improve cargo tracking, shipment verification, and inventory management.
Certified Manufacturing Quality
The ST8701 bolt seal is produced under strict manufacturing and quality control systems and complies with internationally recognized standards such as ISO 9001 and ISO 17712. These certifications ensure the seal meets the requirements for high-security cargo sealing, particularly in international transportation and customs-controlled logistics operations.
Customizable Colors and Branding Options
To support operational management and brand identification, the bolt seal is available in several standard colors including red, yellow, blue, green, and white. Customized colors can also be produced to match specific project or corporate requirements. In addition, customized printing allows organizations to add unique identification details for better control of security seals.
Suitable for Multiple Logistics Applications
The ST8701 bolt seal is widely used for securing shipping containers, fuel tanker trucks, oil transportation vehicles, trailers, and cargo doors. Its strong steel construction and tamper-evident design make it suitable for high-security environments where cargo protection and traceability are essential.
Safe Packaging and Efficient Supply
The product is packaged in secure cartons to ensure safe transportation and efficient distribution. Each box contains 10 seals, and each carton contains 250 pieces, with a carton size of 50 × 32 × 13 cm. This packaging format supports convenient storage and large-scale deployment for logistics operators, transportation companies, and infrastructure projects.
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Model No |
ST8701 |
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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 |
85mm |
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Pin Diameter |
8mm |
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Width |
22.6mm |
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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 |
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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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