National 5/16 In. x 2 In. x 3-1/4 In. Zinc Round U Bolt
National catalog model No. 2190 series. Designed for hanging or fastening products to pipe, wood, etc. Bolts are suitable for automotive, plumbing, and other home and industrial applications. Made of steel. Plate and hex nuts included. U bolts are mainly used on pipe, and pipe sizes listed are inside diameters of standard pipe.