Square U Bolts Kit With Frame Plates And Nuts Stainless Steel U Clamp Bolts For Wood Boats Trailers Tubes Industrial Use Three Eighths Inch By Four Inch By Seven Inch Thread

4-Pack Stainless Square U Bolts with Plates and Nuts
✔️ 4 stainless square U-bolts with plates and nuts for 3x3 beams

These square U bolts are a four-pack stainless steel fastener set designed to grip 3x3 inch square rails, beams, and axles. Ideal for boat trailers, RV bumpers, and other outdoor structures, they deliver strong, corrosion-resistant performance in harsh weather.

✅ Thread size 3/8 in diameter, 4 in width, 7 in length (9.525 mm x 101.6 mm x 177.8 mm)
✅ All-metal stainless steel construction resists rust and corrosion for outdoor use
✅ U-shaped design provides secure grip and easy installation
✅ Includes 4 U bolts, 4 frame plates, 4 M10 hex nuts for a complete kit
✅ Works on boat trailers, ski boats, snowmobiles, and outdoor trailers

💡 What is a square U bolt used for in marine and trailer setups?

This handy fastener helps fix rails, beams, and tubing to frames and mounting points in outdoor and automotive applications. - Square U bolts clamp onto 3x3 in square frames for secure mounting - Stainless steel resists saltwater, rain, and humidity for a long service life - Use with frame plates and M10 nuts for a neat, tight install - Dimensions shown in both inches and millimeters for easy fit