Hot-Dip Galvanized Stud Bolts and Heavy Hex Nuts Delivered to UK Client
Haihao Group has successfully completed the delivery of a batch of hot-dip galvanized stud bolts and heavy hex nuts to a valued customer in the United Kingdom. The products were supplied for a project requiring reliable fastening performance under corrosive and demanding service conditions.
This shipment includes ASTM SA 320 Grade L7M stud bolts and matching ASTM SA 194 Grade 7M heavy hex nuts, both finished with hot-dip galvanizing to enhance corrosion resistance and extend service life in aggressive environments.
Hot dip galvanized ASTM SA 320 L7M stud bolts and ASTM SA 194 Grade 7M heavy hex nuts
Product Specifications
The supplied fasteners were manufactured in strict accordance with ASTM standards and customer technical requirements.
Stud Bolts
- Type: Double end stud bolt
- Standard: ASTM SA 320 Grade L7M
- Thread: 1″-8UN
- Length: 160 mm
- Surface Treatment: Hot-dip galvanized
Heavy Hex Nuts
- Type: Heavy hex nut
- Standard: ASTM SA 194 Grade 7M
- Thread: 1″-8UN
- Surface Treatment: Hot-dip galvanized
Both the stud bolts and nuts are designed for use as a matched set, ensuring proper load distribution and secure bolting performance.
Advantages of L7M and 7M Fasteners
SA 320 Gr. L7M stud bolts and SA 194 Gr. 7M heavy hex nuts are widely used in pressure equipment and piping systems where controlled hardness and toughness are required. Compared with standard carbon steel fasteners, these materials offer:
- Improved resistance to hydrogen-induced cracking
- Stable mechanical properties under high stress
- Suitability for sour and corrosive service conditions
- Reliable performance in oil, gas, and petrochemical applications
The hot-dip galvanized finish further protects the fasteners against atmospheric and environmental corrosion, making them suitable for outdoor and industrial installations.
Quality Control and Manufacturing Assurance
Haihao Group applies strict quality control procedures throughout production, including raw material verification, dimensional inspection, and surface coating checks. Each batch of hot-dip galvanized L7M stud bolts and 7M heavy hex nuts is supplied with full traceability and inspection documentation upon request.
Trusted Fastener Supplier for UK Projects
With extensive experience in supplying ASTM L7M stud bolts and ASTM 7M heavy hex nuts to the UK and European markets, Haihao Group continues to support customers with dependable fastening solutions for critical applications.
From standard specifications to project-specific requirements, we provide consistent quality and professional service for global industrial projects.