M6 M8 M10 M12 U-Bolt with Plate and Nuts – 304 Stainless Steel (A2)

Match the thread diameter (M6, M8, M10, or M12) to your existing nut or tapped hole. For length, measure the outside diameter of the pipe or round object you are clamping, then add roughly twice the thread engagement depth. As a general rule, the inside width of the U-bolt should match the pipe OD, and the leg length should allow at least 3–4 full thread turns past the backing plate. For example, an M8x38 has legs approximately 38 mm (≈1.5") long.

Working load capacity depends on thread size, installation torque, and application type. Generally, M6 U-bolts are suited for light-duty clamping, M8–M10 for medium loads, and M12 for heavier structural or rigging applications. Always apply an appropriate safety factor (typically 4:1 or higher for overhead rigging) and consult an engineer for load-critical installations.

Yes. These U-bolts are made from 304 stainless steel (A2 grade), which provides good resistance to rust, moisture, and mild corrosive environments. They are generally suitable for outdoor, marine, and coastal applications. For highly aggressive saltwater or chemical environments, 316 stainless steel is typically recommended instead.

These U-bolts use standard metric coarse threads (ISO metric). M6 has a 1.0 mm pitch, M8 has 1.25 mm, M10 has 1.5 mm, and M12 has 1.75 mm pitch. They are compatible with standard metric hex nuts and washers.

The inside width of the U-bolt determines the pipe OD it can clamp. This varies by specific part number. As a general guide, M6 U-bolts typically fit smaller tubing (roughly 10–25 mm OD), M8 fits medium pipe (roughly 20–40 mm OD), M10 fits larger pipe (roughly 30–60 mm OD), and M12 fits heavy pipe or structural sections. Please check the variant dimensions or contact us to confirm the inside width for your specific size.

Yes. Each set includes the U-bolt, one backing plate (saddle plate), and two hex nuts — everything needed for a complete installation. Simply select your size and quantity above.

These U-bolts are designed for clamping and securing applications such as pipe mounting, conduit support, and general rigging. For overhead lifting or safety-critical rigging, always verify the working load limit with a qualified engineer and use hardware rated and certified for lifting. These are general-purpose fasteners and are not individually load-rated for lifting.