8 Pcs Square U Bolts Kit 2.6 Inch & 4 Inch Wide Carbon Steel

► Package Includes: 4 x 2.6 Inch (65mm) Wide Square U Bolts 4 x 4 Inch (100mm) Wide Square U Bolts► Product Features: Dual Size Combo: 2.6" (65mm) & 4" (100mm) Wide, Fits 2.5x2.5" and 4x4" Square Beams Material: Heavy Duty Q235 Carbon Steel with Hot-Dip Galvanized Finish Precision Machining: ±0.5mm Dimensional Tolerance, Clear Smooth Threads Complete Accessories: All-in-One Kit with Matching Plates, Nuts Multi-Scene Use: Perfect for trailers, boat trailers, RV bumpers, pipes, wood and industrial fasteners► Important Note: Please measure the outer diameter of your pipe, beam or frame before purchasing to ensure a proper fit. Apply a small amount of lubricant during installation to prevent thread wear and seizing. Avoid using high-speed impact wrenches to tighten the nuts, as this may damage the threads or bolts. Due to manual measurement, a slight deviation of 0.1-0.2 inch is normal.

• Dual Size Combo: Get 4 sets of 2.6 inch (65mm) wide U bolts and 4 sets of 4 inch (100mm) wide U bolts in one package. Perfectly fits 2.5x2.5 inch and 4x4 inch square beams, pipes, RV bumpers and trailer frames.
• Industrial Galvanized Carbon Steel: Made of high-quality Q235 carbon steel with hot-dip galvanized finish, these square U bolts provide excellent corrosion and rust resistance. Ideal for outdoor use in harsh weather, saltwater environments and industrial applications.
• Rectangular U-shape Structure: Manufactured with strict quality control, all U bolts have ±0.5mm dimensional tolerance. This professional design provides an even clamping force and a stable lock on square tubes, plates, and wood beams, keeping your connections securely fixed even under high vibration.
• Complete Install Kit: Every single square U-bolt in this package comes fully equipped with 1 matching frame plate (shim) and 2 hex nuts. The included accessories simplify your assembly process, ensuring a clear, quick, and hassle-free setup for DIY projects, automotive maintenance, or replacements.
• Versatile Applications: These durable galvanized U clamp bolts provide reliable fastening for a wide range of household, marine, and industrial applications. They are widely applied for securing boat trailers, sailboat trailers, truck leaf springs, trailer axles, 4-inch RV bumpers, square frames, and pipelines.