Square U Bolts 12.5" Extra Long Certified OEM Factory Material Set of 4 Made in USA Fitment: Square bend to clamp 2.5" wide leafs, 12" extra-long measured from bottom of bend, 5" thread can be cut down to fit many applications Contents: 4 certified carbon steel square leaf spring axle U-bolts with grade 8 hi-nuts and extra thick washers, clear zinc plated rust protection 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 Note: U bolt color may vary