VERSATILE. This weld-on stake pocket anchor is great for securing cargo loads on heavy-duty flatbed trailers and flatbed trucks HIGH-STRENGTH. This stake pocket is made from steel for dependable strength, and it is designed for a weld-on installation EASY TO USE. Once installed, this trailer stake pocket is fast and convenient to use. The 3-1/2-inch x 1-5/8-inch opening can be used to fasten down ropes, cables, ratchet straps or binder chains. It is also perfectly sized to accept a 2x4 stud HEAVY-DUTY. This stake pocket tie down is constructed from solid steel for heavy-duty strength READY TO WELD. This trailer stake pocket tie down comes with a raw steel finish to be ready for welding right out of the package