Transparent Quoting Process
As Australia’s largest supplier of twist locks, container movement, and associated container parts, Twist Locks is committed to offering very competitive prices. Most quote requests are priced individually to ensure you receive the best possible deal tailored to your specific needs. Simply add the desired products to your quote, and our team will promptly respond with a detailed proposal.
Factors Affecting Pricing
The cost of shipping container connection devices can vary based on several factors, including:
- Product Type: Different types of twist locks and connection devices may have varying costs.
- Order Quantity: We offer discounts for bulk and/or regular orders.
- Customization: Special orders or custom solutions may have additional charges.
- Delivery Location: Shipping costs can vary depending on your location within Australia.
Australia-Wide Delivery
We pride ourselves on our quality and availability, being able to supply to all capital cities in Australia, including Adelaide, Perth, Hobart, Darwin, Brisbane, Canberra, Melbourne, and Sydney, within 48 hours. Delivery of shipping container attachments is available Australia-wide, with discounted shipping to major cities.
Shipping Options
- Standard Shipping: Reliable and cost-effective, suitable for most orders.
- Express Shipping: Available for urgent requirements, ensuring quicker delivery times.
Delivery Times
Our commitment to being the leading supplier in Australia means we strive to offer the best possible delivery times. Standard delivery typically takes 2 days, while express shipping options are available for faster service.
Shipping Costs
Shipping costs are calculated based on the weight and dimensions of your order, as well as the delivery location. These costs will be included in your personalized quote.
Regional Coverage
We cover all states in Australia, with outlets in New South Wales (NSW), South Australia (SA), and Western Australia (WA). Our New South Wales (NSW) outlet services the needs of the Australian Capital Territory (ACT), Queensland (QLD), Victoria (VIC), and Tasmania (TAS), while our South Australian (SA) outlet services the needs of the Northern Territory (NT).
Contact Us
For any inquiries regarding pricing or shipping, feel free to reach out to our customer service team. We’re here to assist you with all your shipping container connection needs.
• Phone: 0402 566 834
• Email: sales@twistlocks.com.au
What this product does
Our double ended twist locks connect two ISO shipping containers vertically by engaging the upper and lower corner castings, creating a rigid stack suitable for transport and static applications where certified vertical coupling is required. Each unit incorporates cones at both ends and a positive locking mechanism to secure into the corner casting apertures, ensuring safe load transfer between stacked containers when correctly installed at all four corners. Units are manufactured to ISO‑compliant dimensions and performance, with documentation available on request to support engineering, quality, and safety audits.
Key specifications
- Minimum breaking load: tension 500 kN; typical shear performance 420 kN when used in ISO corner castings and within design assumptions.
- Finish: hot‑dip galvanised for superior corrosion resistance in marine and industrial environments.
- Typical envelope: approximately 110 mm × 130 mm × 170 mm (reference dimensions for common double ended formats).
- Compatibility: designed for use with ISO 1161 corner castings; use only with containers and fittings that meet ISO dimensional standards.
When to use double ended twist locks vs alternatives
- Use manual double ended twist locks for controlled, hands‑on engagement and disengagement in stacking operations, offering simplicity, durability, and cost efficiency where manual access is practical.
- Consider semi‑automatic or fully automatic locks where turnaround speed, reduced working‑at‑height, or terminal throughput are critical, noting higher cost and mechanism complexity compared with manual devices.
- For horizontal joining of adjacent containers, specify bridge fittings (bridge clamps) that engage the side apertures of corner castings to prevent lateral movement; combine with vertical twist locks for multi‑container assemblies.
Typical applications
- Vertical stacking of 20‑foot and 40‑foot ISO containers in depots, laydown yards, construction compounds, and modular container structures, using four units per interface as standard practice.
- Intermodal operations where certified vertical restraint between containers is required during road, rail, or sea transport, subject to load restraint plans and regulatory compliance.
- Integrated systems with bridge clamps for compound stacks and temporary facilities requiring both vertical and horizontal restraint across multiple containers.
Installation overview (manual)
- Position a double ended twist lock in the lower container’s top corner casting and rotate to the unlocked orientation to allow cone entry into the upper container’s bottom casting.
- Lower the upper container carefully to align the top casting onto the upper cone, then engage the lock to achieve positive 90‑degree rotation and verified handle position; repeat on all four corners, ensuring left/right locking orientation is correct per corner.
- After engagement, verify full seating in both castings and confirm handle orientations and lock status; include the assembly in pre‑departure inspection checklists per site procedures.
Safety, standards, and documentation
- Use only with ISO 1161‑compliant corner castings and within an engineered load restraint plan; performance depends on correct engagement, container condition, and load path design.
- Maintain access control and safe systems of work when operating at height; consider semi‑automatic devices to reduce manual intervention where risk assessments indicate.
- We provide drawings, factor‑of‑safety shear documentation, displacement and stress‑at‑failure test data, and operating instructions to support compliance requirements; request the technical pack with each order.
Maintenance and inspection
- Inspect cones, shafts, and locking mechanisms for wear, corrosion, deformation, or contamination before and after each use, and withdraw from service if defects are observed.
- Preserve galvanised surfaces; remove debris and apply compatible corrosion inhibitors after harsh service; store dry and protected when not in use.
- Replace units that do not achieve smooth positive locking or that show dimensional damage that could impair full engagement in corner castings.
System integration and related hardware
- For horizontal restraint between adjacent containers, specify rated bridge fittings in 260 mm and 380 mm formats that clamp across side apertures in the corner castings to prevent relative movement.
- Use certified corner castings that meet ISO 1161 dimensional standards to ensure compatibility across vertical and horizontal connection hardware in modular builds and transport.
- Where anchoring a lower container to foundations is required, integrate weldable or boltable twist locks at base plates to provide uplift resistance and positional restraint as part of the engineered solution.
Delivery and availability
- We supply nationwide with fast delivery to all capital cities, including Sydney, Melbourne, Brisbane, Perth, Adelaide, Hobart and Darwin, supported by in‑country stock and documentation.
- Technical support is available for product selection, documentation requests, and integration with bridge clamps and base anchoring hardware for complete connection systems.
Double Ended Twist Locks FAQ
