These are custom V bolts we had manufactured domestically for our robotics customer. A36 steel material was used with zinc yellow and bake finish process. 5/8-11 thread was incorporated on both legs, at 2 inches in length. Center to center inside width was set at 4-1/2 inches, with the inside length set at 5.88 inches. The inside angle at the V was set to 90 degrees.