Square U-Bolts M14 x 1.5 Thread, 13.5" Inside Length, Fits 2.5" Leaf Springs, Approx. 9/16" Diameter W/Hardware

• METRIC THREAD – M14 x 1.5 ： Square U-bolts feature M14 x 1.5 metric threads (approximately equivalent to 9/16" diameter). Not compatible with 9/16"-18 UNC hardware. Matching metric nuts are included. • FITS 2.5" LEAF SPRINGS ： Designed to fit 2.5" wide leaf springs with an inside width of approximately 2.68 inches, providing proper clearance and secure clamping. • 13.5" INSIDE LENGTH ： Measures 13.5 inches inside height, ideal for lifted suspensions or applications requiring extra thread length and suspension travel. • Complete Hardware Included – Comes with matching washers and nuts for quick and easy installation. • Ideal for Lifted Vehicles – Perfect for trucks, trailers, and off-road builds with aftermarket suspension upgrades.

This square U-bolt kit is designed for heavy-duty leaf spring suspension applications where strength, fitment accuracy, and reliability are critical. Manufactured from high-strength 40Cr alloy steel, these U-bolts provide consistent clamping force for trucks, off-road vehicles, and custom suspension builds.

The U-bolts use M14 x 1.5 metric threads, which are approximately equivalent in diameter to 9/16" hardware but are not compatible with standard 9/16"-18 UNC nuts. Matching metric nuts and washers are included to ensure proper installation and secure fastening.

With an inside width of approximately 2.68 inches, these U-bolts are suitable for 2.5-inch wide leaf springs, allowing proper clearance without binding. The 13.5-inch inside length makes them ideal for lifted suspensions or setups requiring additional length and thread engagement.

The square bend design ensures a stable fit on square or semi-flat axle housings commonly used in heavy-duty truck and trailer applications. Please verify all dimensions and thread specifications before installation to ensure proper fitment.