Haihao Group Delivered M24 and M30 Grade 8.8 Bolts with Black and HDG Coating for Malaysia Pipeline Project
Haihao Group recently supplied a batch of high-strength fastening products for a Malaysia pipeline project, including Grade 8.8 bolts with different sizes and surface protection requirements. The order covered M24×60 bolts with black coating and M30×110 bolts with hot-dip galvanized (HDG) coating, providing reliable fastening solutions for industrial pipeline and structural applications.
As an important connection component in piping and engineering projects, bolts require stable mechanical performance, suitable corrosion protection, and consistent manufacturing quality. Haihao Group focuses on supplying industrial fasteners that meet project requirements for strength, durability, and long-term service performance.
Haihao Group exported Grade 8.8 industrial bolts and washers for overseas pipeline construction project
Project Details of Grade 8.8 Bolts
The Malaysia customer required two types of coated bolts. The M24×60 bolts were supplied with black surface treatment, while the larger M30×110 bolts were protected by hot-dip galvanizing to improve corrosion resistance in outdoor or humid environments.
The product information is listed below:
| Product | Size | Material Grade | Surface Treatment | Configuration |
| High Strength Bolt | M24 × 60 | Grade 8.8 | Black Coating | 1 Bolt + 1 Washer |
| High Strength Bolt | M30 × 110 | Grade 8.8 | Hot-Dip Galvanized (HDG) | 1 Bolt + 1 Washer |
Manufacturing and Surface Protection
The supplied Grade 8.8 bolts are manufactured for applications requiring reliable tensile strength and mechanical stability. Grade 8.8 is widely used for industrial fastening systems because of its balanced combination of strength and cost efficiency.
To adapt to different working environments, Haihao Group provides various surface treatments:
- Black coating:Suitable for general industrial applications where basic surface protection and appearance requirements are needed.
- Hot-dip galvanizing:Provides enhanced corrosion resistance by creating a protective zinc layer, making it suitable for outdoor installations and environments exposed to moisture.
Before shipment, Haihao Group performs dimensional checks, appearance inspection, and packaging verification to ensure that every batch meets customer requirements.
Reliable Fastener Supply for Pipeline and Industrial Projects
Although bolts are small components compared with pipes and fittings, their performance directly affects the safety and stability of assembled structures and pipeline systems. Proper bolt selection helps maintain secure connections under different operating conditions.
Haihao Group supplies Grade 8.8 bolts and related fastening products for applications including:
- Pipeline construction projects
- Flange connection systems
- Steel structure installation
- Oil and gas facilities
- Industrial equipment assembly
With experience in international pipeline projects, Haihao Group understands the importance of matching fastener specifications with customer drawings, standards, and service environments.
Why Choose Haihao Group for Grade 8.8 Bolts?
Haihao Group provides complete pipeline solutions, including pipe fittings, flanges, pipes, and fastening components. For customers requiring Grade 8.8 bolts, we support customized requirements including:
- Different metric sizes and lengths
- Black, galvanized, and other protective coatings
- Project-based inspection requirements
- Export packaging and global delivery support
The successful delivery of this Malaysia order demonstrates Haihao Group’s capability to provide dependable industrial fastening products together with pipeline components.
Contact Haihao Group for professional support on bolts, nuts, studs, flanges, and complete piping solutions for your next project.