U Bolts

U Bolts

Browse our extensive selection of U Bolts, designed for secure clamping, fastening, and support applications across a wide range of industries. U bolts are U-shaped fasteners with threaded ends, commonly used to hold pipes, tubes, or rods against flat surfaces or to secure them to structural elements. Available in various sizes, materials, and coatings, our U bolts are built for durability and reliability-even in harsh environments. Whether you're working on plumbing, automotive, construction, or marine projects, we have the right U bolt solution for you.

Key Features:

• Available in standard and custom sizes
• Materials include stainless steel, mild steel, and galvanized steel
• Corrosion-resistant finishes for long-lasting performance
• Threaded ends with nuts and washers included (optional)
• Suitable for round, square, or flat surfaces

Common Applications:

• Pipe and conduit support
• Automotive suspension and exhaust systems
• Marine and offshore structures
• Industrial machinery and equipment
• Fencing and structural anchoring

Frequently Asked Questions – Stainless Steel U-Bolt Clamps

1. What is a U-Bolt Clamp and what are its main uses?

A U-bolt clamp is a U-shaped fastener with threaded ends, designed to secure pipes, tubes, conduits, or rods to a surface or structure. They are widely used in plumbing, HVAC, fire protection, marine, industrial, sanitary, and construction applications.

2. What sizes and thread options do you offer?

Our stainless steel U-bolt clamps are available for pipe sizes from 15NB (21.3mm OD) up to 300NB (323.9mm OD), with metric thread options: M8, M10, M12, M16, and M20.

3. What materials are your U-bolt clamps made from?

We offer U-bolt clamps in both SS304 (AISI 304, 1.4301) and SS316 (AISI 316, 1.4401) grades. SS304 is suitable for general industrial and indoor use; SS316 is preferred for marine, chemical, and aggressive environments due to its superior corrosion resistance.

4. What is included in each U-bolt clamp set?

Each set includes:

• 1x U-bolt (SS304 or SS316 as specified)

• 2x matching hex nuts (DIN 934 compliant)

• 2x flat washers (DIN 125 compliant) All components are manufactured from stainless steel of the same grade as the U-bolt.

5. What are the typical specifications for nuts and washers?

• Hex Nuts: M8 to M20 thread, DIN 934 standard. For example, M10 has across flat 16.73–17mm and thickness 7.64–8mm.

• Washers: DIN 125 compliant, M8 to M20. For example, M10 washers have inner diameter 10.5–10.77mm, outer diameter 19.48–20mm, thickness 1.8–2.2mm.

6. How do I choose between SS304 and SS316?

Choose SS304 for indoor, general industrial, or food-grade uses without intense chemical/sea exposure. Opt for SS316 for marine, outdoor, chemical, or highly corrosive environments, or where maximum hygiene is required.

7. Are these U-bolt clamps compliant with DIN standards?

Yes, our U-bolts, nuts, and washers are made to DIN standards (U-bolts sizing per industry norms, nuts as per DIN 934, washers as per DIN 125). This ensures perfect fit, reliability, and easy sourcing of accessories.

8. Do you offer custom or bulk orders?

Yes, besides the standard range, we can manufacture custom sizes or supply bulk quantities as required. Please contact our sales team for custom or large project needs.

9. How do I install a U-bolt clamp?

1. Place the U-bolt over the pipe or item to be clamped.

2. Insert threaded ends through holes on a bracket or securing surface.

3. Fit the included washers and nuts over the threaded ends.

4. Tighten nuts evenly for a secure, rattle-free fit. (Avoid overtightening to prevent damage to pipe or threads).

10. Where are U-bolt clamps commonly used?

• Securing pipework to beams or frames in plumbing and heating systems

• Mounting conduit or cable runs in electrical installations

• Fastening marine or industrial equipment

• Sanitary applications in food, pharma, and water treatment