Reliable Stud Bolts with Heavy Hex Nuts Delivered for Low-Temperature Service

Haihao Group has recently completed the supply of a full range of stud bolts with heavy hex nuts for a demanding industrial project. Manufactured in strict accordance with international standards, these fasteners are designed to perform reliably under low-temperature conditions and critical service environments.

This shipment includes multiple specifications covering different sizes, thread types, and lengths, ensuring compatibility with various flange connections and pipeline systems.

Product Overview and Key Specifications

The delivered stud bolts with heavy hex nuts are produced using high-quality raw materials and controlled manufacturing processes. Key specifications include:

• Bolt Material: ASTM A320 Grade L7 (suitable for low-temperature service)
• Nut Material: ASTM A194 Grade 4 / Grade 4 (S3)
• Alternative Material: ASTM A193 B7 with ASTM A194 2H nuts
• Coating: Hot Dipped Galvanized (HDG) / Zinc Coating
• Thread Type: UNC and 8UN series (ASME B1.1)
• Thread Class: 2A (bolt) / 2B (nut)
• Standard: BS 4882, ASME B18.2.2
• Inspection Certification: EN 10204 3.1 / ISO 10474 3.1

Available sizes in this order range from 3/4″ to 3″ diameter, with lengths from 100 mm up to 460 mm, meeting diverse installation requirements.

BS 4882 stud bolts with heavy hex nuts ASTM A320 L7 HDG

Designed for Low-Temperature and Critical Applications

One of the key advantages of these stud bolts with heavy hex nuts is their excellent performance in low-temperature environments. ASTM A320 L7 material ensures:

• High toughness at sub-zero temperatures
• Reliable mechanical strength under stress
• Resistance to brittle fracture

Additionally, all products comply with MESC specifications, ensuring suitability for oil & gas and petrochemical applications where safety and durability are critical.

Manufacturing and Quality Control

Haihao Group applies strict quality control procedures throughout production:

• Raw material verification and traceability
• Precision machining for thread accuracy
• Coating thickness inspection for corrosion resistance
• Mechanical testing and impact testing
• Full documentation including Mill Test Certificates (MTC)

Each batch of stud bolts with heavy hex nuts is delivered with complete inspection reports to meet project compliance requirements.

Why Choose Haihao Group?

With extensive experience in supplying industrial fasteners, Haihao Group provides:

• Consistent product quality aligned with global standards
• Flexible production for custom sizes and specifications
• Fast delivery and reliable logistics
• Professional technical support

<>Whether for pipeline systems, pressure vessels, or offshore applications, our stud bolts with heavy hex nuts are engineered to deliver long-term performance.

This successful shipment highlights Haihao Group’s capability in delivering high-quality stud bolts with heavy hex nuts for demanding industrial environments. From material selection to final inspection, every step is carefully managed to ensure reliability and compliance.

If you are looking for a trusted supplier of industrial fasteners, Haihao Group is ready to support your next project with precision and efficiency.