Haihao Group has successfully completed the supply of a new batch of PTFE-coated U-bolts designed for 1-inch industrial piping systems. The delivery demonstrates Haihao’s manufacturing capability in producing precision-engineered pipe support components that meet international mechanical and corrosion-resistance standards.

Each U-bolt assembly is built with ASTM A36 carbon steel rods, paired with ASTM A194 Grade 2H nuts and washers, and equipped with a 10mm PTFE (Teflon) pad featuring a Zn-Ni (zinc-nickel) coating for enhanced protection.

PTFE coated ASTM A36 U-bolts with ASTM A194 Gr.2H nuts and washers prepared for shipment

Product Overview

Each U-bolt is designed to provide secure pipe restraint and vibration reduction for pipelines operating under varying temperature and pressure conditions. The PTFE (Teflon) coating not only minimizes friction and wear between the bolt and pipe surface but also prevents the accumulation of corrosion and debris, extending service life in harsh environments.

Engineered for Durability and Reliability

Haihao’s U-bolts are manufactured following strict production standards, ensuring dimensional accuracy, thread integrity, and mechanical strength in every piece.
The combination of ASTM A36 rods and ASTM A194 Grade 2H fasteners provides excellent load-bearing capacity, making them suitable for petrochemical plants, power stations, offshore installations, and water treatment facilities.

The Zn-Ni (zinc-nickel) coating acts as a superior corrosion barrier, outperforming traditional galvanizing by offering extended protection against moisture, chemicals, and salt exposure.

PTFE and Bakelite Coating Benefits

The PTFE (Teflon) or Bakelite coating applied to each U-bolt ensures a smooth, non-stick surface, reducing friction during installation and allowing the pipe to move or expand without damaging the support.
Key benefits include:

• Excellent corrosion resistance in humid or chemical environments.
• High temperature stability and mechanical toughness.
• Prevention of metal-to-metal contact, protecting both bolt and pipe surfaces.
• Long-lasting anti-seizing and anti-vibration performance.

Quality Control and Testing

Before dispatch, every batch of U-bolts undergoes rigorous inspection, including:

• Dimensional verification according to ASTM standards.
• Thread tolerance and torque testing to ensure proper tightening.
• Coating thickness and adhesion testing for corrosion durability.
• Visual inspection for surface smoothness and coating integrity.

All products were securely packaged and labeled according to export standards, ensuring safe delivery to the client site.

Commitment to Engineering Excellence

Haihao Group’s reputation as a leading industrial U-bolt manufacturer and pipe support supplier stems from its commitment to precision engineering, quality assurance, and on-time global delivery.
With advanced production facilities and decades of experience, Haihao provides customized U-bolt solutions that meet the exact specifications of different international projects.

Whether for energy, construction, or water infrastructure, Haihao’s PTFE-coated U-bolts and fastening assemblies deliver long-term reliability and performance in demanding environments.

Structured FAQ (for SEO)

Q1: What are PTFE-coated U-bolts used for?

A1: They are used to support and secure pipes in industrial systems, reducing friction and corrosion between the pipe and the clamp.

Q2: Why choose ASTM A36 for U-bolt rods?

A2: ASTM A36 offers excellent tensile strength, machinability, and durability, making it suitable for heavy-duty pipe support applications.

Q3: What is the purpose of the Zn-Ni coating on U-bolts?

A3: The zinc-nickel layer provides exceptional corrosion resistance, especially in coastal or chemical processing environments.

Q4: Can Haihao customize U-bolts for different pipe sizes and coatings?

A4: Yes, Haihao offers customized U-bolt dimensions, coatings, and materials according to client and project specifications.