American Automotive UBLT12-388 Square U Bolts 10" Extra Long Certified Oem Material, Set of 4 Fitment: Square bend to clamp 2.5" wide leafs, 10" long measured from bottom of bend, 4" thread can be cut down to fit many Contents: 4 certified carbon steel square leaf spring axle U-bolts with grade 8 hi-nuts and security spring washers Technical notes: Retighten U-bolts after the first 500 miles, minor settling from new or repaired springs can cause a reduction in clamp force Benefits: American leaf spring axle U-bolts are designed for maximum u bolt clamp and embody extreme strength