High Strength Shipping Container Twist Lock for Truck Semi Trailer Heavy-duty shipping container twist lock, engineered as a direct replacement for truck semi-trailer chassis applications. The twist lock secures shipping containers to the trailer chassis, and its locking mechanism must withstand constant vibration, impact and lateral loading during transport, making structural integrity and locking reliability critical to cargo safety. Cast from QT450 ductile iron, the twist lock delivers high tensile strength, wear resistance and excellent impact tolerance in daily container handling. Precision-machined locking surfaces guarantee positive engagement and release with standard container corner castings, no modification required. Surface treated for corrosion resistance and backed by 6-month warranty. Ideal for fleet operations, logistics and heavy-duty transport applications. Specification Name Twist Lock Type Suspension Assembly Material QT450 Warranty 6 Months Application BPW, Truck Semi Trailer Place of Origin Fujian, China Why choose VICTORY MACHINERY Fujian Victory Machinery Co., Ltd. is a professional truck parts manufacturer and exporter in China, specializing in leaf spring accessories, suspension, steering and chassis parts for European and Japanese heavy trucks. Factory-direct price, strict quality control, OEM/ODM customization supported. 24/7 service, fast delivery worldwide.