A2 Stainless Steel U-Bolts M6 M8 M10 M12 — Round Bend Pipe Clamp Bolt

Measure the outer diameter (OD) of your pipe or tube, then select the matching tube diameter option. For example, a standard 1-inch nominal pipe has an OD of approximately 33mm — the 34mm option would typically be the right fit. If your pipe OD falls between two listed sizes, generally choose the next size up for a proper clamp fit. Always measure before ordering.

Thread size determines the bolt shank diameter and overall load capacity. M6 is generally suited for light-duty pipe support and small-diameter tubes. M8 handles medium loads and is a common choice for plumbing and HVAC work. M10 and M12 are typically used for heavier structural, automotive, or industrial clamping applications. Match the thread size to your existing nuts, brackets, or mounting hardware specifications.

A2 stainless steel U-bolts generally provide good tensile strength for pipe clamping and mounting applications. Exact load ratings depend on the thread size, installation torque, and the specific application. For critical or load-bearing structural applications, we recommend consulting an engineer and verifying load requirements before use.

Yes — A2 stainless steel (304 grade) provides good corrosion resistance for outdoor, damp, and mildly marine environments. It performs well in rain, humidity, and light salt exposure. For highly aggressive saltwater or chemical environments, A4 (316) stainless steel is generally recommended for superior corrosion resistance.

These U-bolts use standard ISO metric coarse threads (M6, M8, M10, M12). They are compatible with standard metric nuts and washers widely available at hardware stores in the US and internationally. No special tools or adapters are required for installation.

Please review the product variant details or contact us to confirm what is included with each set. In many cases, U-bolts are sold as the U-bolt only, without nuts or washers, unless explicitly stated. We recommend confirming before ordering if additional hardware is required for your installation.

A2 stainless steel typically handles temperatures up to approximately 870°C (1600°F) in intermittent service, making it generally suitable for many automotive exhaust applications. However, sustained exposure to very high temperatures may affect mechanical properties over time. For critical high-heat applications, verify the specific temperature requirements of your setup before ordering.

To convert millimeters to inches, divide by 25.4. Common examples: 14mm ≈ 9/16", 22mm ≈ 7/8", 27mm ≈ 1-1/16", 34mm ≈ 1-5/16", 48mm ≈ 1-7/8", 60mm ≈ 2-3/8", 76mm ≈ 3", 114mm ≈ 4-1/2", 161mm ≈ 6-5/16". Note that nominal pipe sizes (NPS) do not always match actual OD — always measure your pipe directly.