Reinforced rib design provides additional strength to resist effects of stress, wind and vibration. Industry standard for pole diameters greater than 14 in square poles and wooden poles larger than 8 in diameter. Includes a stainless bolt, nylon washer and 5/16-18 x 3/4 in stainless steel hex head bolt with metal and fiber washer, no nuts required. 3/4 in wide band slot will allow a single or a double wrap of band. Brack-it assembly can be reused. Fully threaded to solidly anchor attachment bolts. Used to mount traffic signs, security devices and enclosures. Applied with Band-It® Band and Buckles, BAND-FAST®, VALU-STRAP™, VALU-STRAP Plus™, or Ultra-Lok® systems.