Product Overview

Door latch seals, also known as latch lock seals or indicative trailer seals, are a specific type of security device that is used to lock handle latches, keeper bars and alignment holes of transport vehicles, storage enclosures and distribution units on a one-time basis. The seals are primarily intended to give immediate and incontestable visual evidence of tampering. They are an important auditing mechanism for the secure transport and management of assets.

Door latch seals are for quick application and removal at high volumes, not for heavy structural barrier locks. As soon as the continuous tracking numbers of the seal or the mechanical joint do not match the first transit manifest, a security breach is revealed.

Door Latch Seals are intended to secure container doors, truck latches and cargo access points from unauthorized opening while in transit and storage. When applied, each seal clearly shows tampering or forced entry. The product's heavy-duty metal bolt construction offers superior resistance to vandalism and is certified to the highest security level of ISO 17712, making it the security solution of choice for the transport of high-value cargo, hazardous materials and sensitive goods.

Product Features

1. Ultimate security performance

This door latch seal is constructed from premium alloy steel and is resistant to heavy cutting and tampering. The anti-pry lock prevents unauthorized opening attempts, and anti-rotation grooves hold the bolt in place to avoid accidental loosening or deliberate disassembly.

2. Advanced identification system

Every seal is permanently laser-engraved with a unique serial number for precise tracking and includes barcodes and QR codes for maximum logistics visibility. Available in customizable colors for operational classification and brand recognition.

3. Structural Fit & Resilience

This rugged seal is double-locking in geometry, custom molded for standard container latches, and galvanized for extreme weather and corrosion. It easily absorbs heavy transit vibration, so there's no latch rattling or accidental dislodgement in transit.

Product Structure

Component Composition

Dimension(L*W):340mm*40mm

Thickness:8mm

Material:Q235A

Package:7pcs/carton

Carton size:41*36*12cm

Weight:18kg/carton

key feature

High-quality steel structure

Tamper-proof, high security

Adjustable locking length

Application areas

Shipping Container Door Security
Truck & Trailer Cargo Protection
Warehouse & Distribution Centers
Cross-Border Logistics Transport
High-Value Cargo Shipments

Quality Control

Door Latch Seals must ensure reliable performance and international compliance. Our rigorous quality control process ensures that every seal meets the highest industry standards.

Material & Structural Testing
Raw Material Inspection: Choose high strength alloys for a strong foundation.
Tensile & Impact Testing: Test mechanical strength and high resistance to forceful tampering.
Corrosion & Temperature Resistance: Salt spray and thermal tests will be conducted to ensure stability under harsh environments.
Locking Mechanism Verification: Verify locking mechanism functions securely, offers tamper evident and irreversible sealing.
Production & Traceability
ISO 9001:2015 Standards: All products are manufactured to a certified quality management system.
Batch Traceability Management: Complete documentation of each production run for total tracking and accountability.
Export Quality Control: Conduct rigorous pre-shipment inspections to comply with international container security standards.

✔ Trusted Security: Engineered and tested to survive the most challenging global logistics environments.

✔ Regulatory Compliance: Certified to meet ISO 17712 and global shipping security standards.

✔ Total Traceability: Each shipment is accompanied by batch-level records, building long-term trust with international purchasers.

Service Support

Customized Service

- Enterprise LOGO customization

- Special numbering rules

- Special color scheme

- Special Size Requirement

FAQ

Q1: How to verify the authenticity of seals?

A1: You can use the following methods:
1. Check the number in the official verification system.
2. Check the quality of laser engraving
3. Test the hardness of the material
4. Using special testing equipment

Q2: What should I do if the seal is damaged?

A2: Standard emergency procedure:
1. Immediately stop the transportation and protect the site
2. Take photos and videos of the damage
3. Notify relevant security departments
4. Initiate cargo inspection program
5. Fill in the security incident report

Q3: Can Door Latch Seals be reused?

A3: No. They are designed for single-use security applications to ensure tamper evidence.

Q4: Are they reliable in extreme climates?

A4: Our products are rigorously tested:
1. Arctic test: -50°C normal use
2. Desert test: +80℃ continuous exposure to sunlight
3. Tropical test: 100% humidity environment
4. Salt spray test: 500 hours without corrosion

Q5: How to choose the right length?

A5: Selection basis:
1. Standard container: 448mm
2. Railway freight: 200mm
3. Special equipment: according to the actual measurement
4. 10mm allowance is recommended

Q6: Is there any color management solution?

A6: We provide:
1. 12 standard colors
2. corporate color schemes
3. Multi-color combinations
4. fluorescent special colors

After-sales commitment

1.Lead seals supply chain security risk assessment: assess the customer's seals from the production, transportation, warehousing to the use of the whole chain of security risk points.

2. Lead seal anti-fraud strategy consulting: Develop strategies for prevention, detection and response to possible counterfeiting, tampering, impersonation and other fraudulent behavior.

Company Profile

Hebei Yutong Metal Products Co., Ltd. is a leading manufacturer of plastic security seals and metal security seals in China, and its head office is located in Guangzong County, Xingtai City, Hebei Province, China. Our company specializes in manufacturing a wide range of high security cable seals, plastic seals, padlock seals and container bolt seals with modernized production lines and a strict quality control system. Its products are widely used in logistics, transportation, warehouse management, power metering and petrochemical industries and have achieved a strong reputation in the domestic and international market for excellent cost-effectiveness and fast delivery.

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