Security Chain
A welded chain that has undergone advanced heat treatment and hardening processes, featuring extremely high hardness that is difficult to cut with conventional tools, and can be used with various types of locks.
- High hardness
- Corrosion-resistant
- Cut-resistant
- ECO-Friendly Finish
- Protective Sleeve Available
Your Suitable Security Chain Supplier in China
Tuohai can produce all types of security chains for you, accepting various customizations. Here, you can find both standard and non-standard sizes of security chains. Tuohai can also provide customization services for surface treatment, packaging methods, and more.
What is security chain?
A security chain, also known as a safety chain, is a welded chain that has undergone hardening and anti-rust treatments. It is generally made of alloy steel or high-carbon steel chain, and has undergone heat treatment and hardening processes to effectively prevent rust, corrosion, cutting, and destruction. It is commonly used for theft prevention and property security applications.
For different load, corrosion-resistance, or transport requirements, we also supply Metal Link Chain and Tie Down Chain.
Features of Tuohai Security Chain

Narrow gap design prevents tools from being inserted to break the security chain.

Surface hardness can reach up to 65, effectively preventing cutting and damage, enhancing security.

Galvanized or coated surface treatment allows long-term use in outdoor or humid environments.

Higher tensile strength and working load capacity to meet more demanding application requirements.
Extremely High Shear and Tensile Strength
Tuohai’s security chain has undergone special heat treatment, hardening treatment, and advanced welding processes, giving the chain extremely high cut resistance to prevent easy damage by cutting tools, providing adequate protection in various applications.


Excellent Surface Treatment Technology
In addition to hardening treatment, our security chain’s surface can also be treated with other coatings, such as galvanization or PVC coating, allowing the security chain to maintain its safety and mechanical properties even after long-term use in outdoor or humid environments.
Available in Various Shapes and Sizes
Tuohai can provide you with more cut-resistant square security chains or round wire security chains with better wear resistance, as well as customize various standard and non-standard sizes to meet different application requirements.

Other Customizable Options for Your Security Chain


Tuohai can add a protective fabric sleeve or PVC sleeve to your security chain, making it perfect for use in various applications, preventing wear, corrosion, or damage, and also suitable for decorative applications as a safety chain.

Tuohai can attach locks to the security chain, making it more convenient to protect property in theft prevention or other applications, such as chain locks.

You can also add bolt hooks, shackles, or collars to your security chain, allowing it to be used in more applications, such as security door chains, anti-slip chains, and more.
Why Choose Tuohai?

Tuohai’s welded chain production line has achieved full automation, greatly shortening the production cycle, reducing the errors or defects that may arise from manual production, and significantly improving product quality.

Tuohai has over 25 years of experience in producing various security chains. Our technical team continuously improves and develops production technology, providing technical assurance and support for our product quality.

All raw materials for our security chains are strictly selected and come with material reports to ensure that all chains meet various standards, such as hardness, carbon content, and more.

Every step of Tuohai’s security chain production process undergoes professional quality control, and after production is completed, there will be additional random inspections, including product hardness, surface treatment, and mechanical properties, to ensure the security chain’s safety during use.

You can customize any packaging method you want at Tuohai, including cartons, spools, burlap bags, wooden boxes, etc. Whether for retail or wholesale, you can find the most suitable packaging method at Tuohai.
Related Product
Tuohai can provide carbon steel security chains and stainless steel security chains.
Yes
Security chains are mainly used in scenarios requiring security protection or theft prevention, such as:
- Vehicle theft prevention: Locking or securing bicycles, motorcycles, trailers, etc.
- Door and window entry security: Doors or windows of warehouses, residences, etc., to prevent unauthorized entry and provide security.
- Protection of items: Used to secure valuable items or equipment to prevent damage and theft.
- Safety protection in high-risk areas: Can be used as barrier chains in high-rise buildings or construction sites to delineate safe areas and prevent accidental entry.
Tuohai offers surface treatments such as heat treatment hardening and galvanization.
















