This accessory is easy to install and use. This is a quick and easy solution that takes just minutes to secure your container to a level surface. [Function Display]: Our container side twist locks secure the container to the ground. Its right-angle structure reverses and can also fix shipping tanks on other horizontal surfaces or link other elements to the top and bottom of the container. [Anti-rust process]: Our container accessories are made of high-quality high-carbon steel, and the surface adopts hot-dip galvanizing process to prevent rain erosion, delay rust and aging of components, and provide long-term fixation work. [Easy to assemble]: This accessory is easy to install and use. This is a quick and easy solution that takes just minutes to secure your container to a level surface. [Multi-Functional Application]: This accessory is compatible with various standard containers and can be easily disassembled and installed. It is a multi-functional solution to meet fixed needs and provides a wide range of application prospects. [Disclaimer]: Bolts and welding materials are not included. ASIN B0CRYFCCTX Brand gjkldcvb Color silver Model Shipping Container Anchors S1 Head Type Flat Size Name 1/4-16 UNC Unit Count 4.0 Count Part Number Shipping Container Anchors S1 Thread Size 1-5/16 -16 Thread Type Unc Finish Types galvanized Manufacturer GJKLDCVB Thread Style Right Hand Fastener Size 1-5/16 inches Fastener Type Hanger Bolt Item Hardness Grade 8 Material Type Alloy Steel Exterior Finish Zinc Item Dimensions 3 x 3 x 5 inches Thread Coverage Unthreaded Screw Head Style Flat Manufacturer Grade heavy-duty Compatible Groove Diameter 1.9 Inches