✅【PACKAGE CONTENTS】 The package includes 2 sets of M12 square U-bolts. Each set comes with square U-bolts, flat washers, spring washers, nylon lock nuts, frame plates, and a matching wrench — everything you need for quick installation.Each U-bolt measures 90 mm (3-9/16 inch) in inner width and 130 mm (5-1/16 inch) in total length . Check the size chart shown in Image 2 to ensure the correct fit for your application.
✅【PREMIUM 304 STAINLESS STEEL】 The U Bolts are made of high-quality 304 stainless steel, offering outstanding strength, rust resistance, and corrosion protection.Perfect for both indoor and outdoor environments — whether exposed to humidity or rain, these U-bolts remain durable and deformation-free.
✅【SECURE & STABLE CONNECTION】 Equipped with nylon lock nuts and spring washers, the connection remains tight and secure even under vibration.Compared with ordinary nuts, nylon nuts provide stronger locking force, ensuring long-term stability — slightly harder to tighten, but far more reliable.
✅【WIDE APPLICATIONS】 Square U Bolts are Ideal for use in trailers, boats, pipelines, automotive parts, wood beams and metal structures.Excellent for fixing or clamping rectangular objects, poles, and heavy-duty assemblies.
✅【INSTALLATION TIPS】 To protect threads and extend u bolts' service life: Apply a bit of lubricant before tightening the nuts. Avoid high-speed or impact tools — use the included manual wrench instead.
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