Horizontal Twistlock BH-A1
— High-Strength Safety Lock ISO Ocean Shipping Container —
Product Overview
Horizontal twistlocks are an industry-standard locking device used to connect two 10-foot containers into a 20-foot container, or two 20-foot containers into a 40-foot container. Only two are required. These devices are intended solely for connecting empty containers.
Unlike vertical twist locks commonly used for stacking containers vertically, this product restricts lateral displacement between containers or between containers and the supporting structure. It is widely applied in maritime shipping, multimodal transport, and specialized project cargo scenarios.
OLIPORTS high-quality shipping container twist locks meet international standards and undergo rigorous testing to guarantee optimal performance even in the harshest environments. Whether you’re looking for standard models or heavy-duty solutions, we provide reliable container locking devices for all your cargo transportation needs.
Technical Specification of Horizontal Twistlock

- Model: BH-A1
- Total Weight: 4.8KG
- B.L.: Tension 200KN
- S.W.: Tension 100KN
- Material: Casting Steel
- Finish: Hot Dip Galvanised
- Class Approval: ABS, DNV-GL, CCS, Others
- Category: Loose Fittings on Deck
- Tags: Twist Lock; Container twistlock; ISO container twist locks; Lashing Equipment; Dovetail Twistlocks
* Can be customized according to your needs, type and test class approved on request.
Drawings and Features of Horizontal Twistlock BH-A1

Key Features
Typically equipped with a prominent operating handle or indicator component (often yellow) to enable on-site personnel to quickly verify the locked status and perform manual operations.
- Side-to-side connection: Utilize the side holes of the container corner fittings. Either the upper or lower corners may be used.
- End-to-end connection: Use only the lower corner holes (upper corner holes are ineffective).
- Rugged and durable design: Eliminates redundant complex components, features a robust structure, withstands frequent use and impacts, reducing maintenance costs and downtime.
- Weldable & Class Approved: Meets ABS, DNV-GL, CCS, and ISO standards
Application
Container twist locks are versatile devices used across various segments of the transportation industry:
- Container Vessels: Secure containers laterally within holds or on decks.
- Container Yards: Interlock containers stacked on the same level laterally to enhance stack stability.
- Multimodal Transport: Suitable for rail flatcars or specialized transport scenarios requiring lateral securing.
With its high tensile strength, corrosion-resistant finish, and standardized connection design, this part is trusted by global shipping lines, shipyards, port operators, and marine service providers. By choosing OLIPORTS as your supplier, you ensure reliable performance, compliance with ISO & class society standards, and consistent availability for both scheduled maintenance and large-scale fleet projects.
Why OLIPORTS?
At OLIPORTS, we manufacture container securing components with unmatched engineering precision and industry know-how.
With over a decade of manufacturing and global distribution experience, OLIPORTS has developed deep expertise in container lashing and cargo securing systems. We fully understand the design drawings, structural layouts, and mechanical calculations behind every container ship’s securing solution — allowing us to respond quickly and accurately to your technical requirements.
- Deep understanding of ship drawings and classification standards
- Over 10 years of global lashing system supply experience
- Support for custom layouts to match your vessel and route
- Certified by CCS, ABS, DNV-GL, and compliant with ISO 3874 / ISO 1161
- Fast quote turnaround and fewer sample revisions
- Trusted by yards, shipowners, and retrofit contractors worldwide
Built to perform. Certified to last. Delivered on time. Our in-house design and fabrication capabilities ensure fast delivery, high compatibility, and long-term durability.
Request a Quote or Drawing
OLIPORTS offer: Technical Datasheet PDF、Material Certificates、DWG or STEP files for design integration、On-request layout support. Our lashing experts typically reply within 24 hours. 💡 Based on your port design, berthing energy, and vessel data, we’ll provide:
⚙️ Recommended drawings & specifications
💬 A tailored quotation with best lead time
📎 Support for class approval documents
Contact Us
We’re here to assist you with any inquiries. One of our product specialists will get back to you within 24 hours with the information you need.



