The Superlift U-bolt 4-pack (5/8 x 3-1/4 x 18, square) is supplied as a full hardware replacement kit with matching nuts and washers for installation. From Superlift’s suspension product line, the pack includes four high-strength square U-bolts intended to replace worn or damaged fasteners and provide a reliable fastening solution during suspension service.
Superlift U-Bolt 4 Pack 5/8x3-1/4x18 Square w/ Hardware