Product Overview of U bolt with rubber sleeve
As a leading U bolt with rubber sleeve manufacturer in China, we specialize in delivering high-performance fastening solutions tailored for industries requiring vibration control, noise reduction, corrosion resistance, electrical insulation and durability. Designed to meet stringent U.S. and international standards, our product is a top choice for marine, offshore, automotive, HVAC, solar energy, and machinery applications. Known interchangeably as Rubber lined U bolts or U bolts with rubber sleeves, these components are designed for applications requiring structural integrity and long-term protection.
Key Technical Specifications of our U bolt with rubber
1. Material Excellence
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U bolt Material: High strength carbon steel, alloy steels and stainless steels.
- For the caron steel and alloy steel U bolts, will be supplied with Hot-Dip Galvanized coating: Complies with ASTM A153, offering a 75 μm zinc coating for corrosion resistance in marine and industrial environments.
- For the stainless steel U bolts, we can provide with PTFE coating (Teflon coating) , such as Xylan 1014, Xylan 1024 coating ect.
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Rubber Sleeve: EPDM/Neoprene: Resistant to UV, ozone, and oils (up to 120°C), with dielectric strength >15 kV/mm.
- Besides Neoprene Rubber sleeve U bolts, we also provide silicone rubber sleeve for high temperature applications.
- All our Neoprene rubber, Silicone rubber U bolts are Flame retardant.
2. Main types of Rubber coated U bolts
Our Rubber coated U bolts are mainly supplied in two types, which are Grip type U bolts and Non-grip type U bolts.
3. Customizable Dimensions of our Rubber Lined U bolts
Diameter: imperial size U bolts diameter 3/8″ to 2″ (9.5–50.8 mm), supporting pipes with up to 36″ (DN900) in pipe outer diameter. Metric U bolts size are available from M6 to M56.
Rubber Sleeve Thickness: 1mm–30 mm for optimized load distribution.
4. Our U bolts with rubber sleeve Compliance with U.S. Standards
Our Rubber lined U bolt can be supplied as per standards: ASTM A193 B7, ASTM A320 L7, ASTM A320 B8, ASTM A 307 Gr B, ASTM A325, and so on.
ASME B18.2.1: Precision dimensional tolerances for hexagonal bolts.
Why Choose Our Rubber Coated U bolts as Your Trusted Supplier?
Vibration & Noise Reduction:
The rubber sleeve of our U bolts absorbs 70% of shock loads (up to 500 N/mm²), ideal for automotive exhaust systems.
Wear Protection:
Our U bolt clamp with rubber sleeve can prevent wear of the pipe and U bolt due to fretting.
Corrosion Protection:
U bolts with Hot-dip galvanized or stainless steel material options ensure 20+ years of service life.
Electrical Insulation:
The EPDM sleeves / Neoprene Rubber of our U bolt prevent galvanic corrosion in solar panel mounting and electrical installations.
Customization Flexibility:
As a global U bolt with rubber sleeve supplier, we offer tailored sizes (e.g., 1/2″–36″ clamps; DN15 – DN900) and materials to meet project-specific needs.
Applications & Industry Case Studies
Automotive: Complies with SAE J429 for exhaust systems, withstanding 370°C temperatures.
Solar Energy: ASTM F3125 Grade A325-certified for structural outdoor use.
Plumbing & HVAC: Zinc-plated or stainless steel options with rubber sleeves for moisture resistance.
Quality Assurance & Certifications
Testing: Tensile strength (ASTM F606), salt spray (ASTM B117), and fatigue testing.
Certifications: ISO 9001, ASTM A194 (nut compatibility), and SAE compliance.
As a certified U bolt with rubber sleeve manufacturer and supplier, we combine precision engineering with global compliance (ASTM/ASME/IFI) to deliver unmatched durability. Whether you require hot-dip galvanized steel for harsh environments or stainless steel for chemical resistance or marine and offshore industries, our customizable solutions ensure reliability. Contact us today to partner with a trusted industrial fastener supplier and elevate your project’s performance.
