Haihao Group Supplies Industrial Steel Bolts, Nuts, Washers and Stud Rods for Russian Client Project

Recently, Haihao Group successfully completed the production and shipment of a large batch of industrial fasteners and steel hardware products for a valued client in Russia. The order included various types of hex bolts, hex nuts, flat washers, spring lock washers, stud rods, and socket head cap screws manufactured from mild steel, alloy steel, and 35CrMo materials.

These products are widely used in pipeline engineering, steel structure assembly, pressure equipment installation, petrochemical projects, and industrial machinery applications where reliable fastening performance is critical.

With years of manufacturing and export experience, Haihao Group continues to provide international customers with high-quality industrial fastening solutions that meet global standards and demanding operating environments.

Products Included in This Shipment

The shipment covered a wide range of industrial fastening products with different sizes, coatings, and material grades, including:

• Plain mild steel hex bolts from M14 to M33
• 35CrMo alloy steel bolts
• ASTM A194 steel hex nuts
• GOST ISO 4032-2014 hex nuts
• Zinc-plated spring lock washers
• Cadmium-plated spring washers
• Precision flat washers
• Belleville spring washers
• Weldable steel stud rods
• Hex socket head cap screws

The products were carefully inspected before shipment to ensure dimensional accuracy, thread precision, coating quality, and mechanical performance.

Reliable Mild Steel Hex Bolts for Industrial Applications

One of the major products in this order was the plain mild steel hex bolt series, including sizes such as:

• M16×80 mm
• M18×100 mm
• M20×120 mm
• M22×200 mm
• M27×200 mm
• M30×240 mm

These industrial hex bolts are commonly used in:

• Pipeline flange connections
• Structural steel assembly
• Equipment installation
• Industrial maintenance projects
• Heavy machinery fastening systems

Haihao Group manufactures industrial steel bolts with stable mechanical properties and consistent thread quality to ensure safe and reliable installation performance.

35CrMo Alloy Steel Bolts for High-Strength Service

The shipment also included 35CrMo alloy steel bolts, a material known for excellent strength, toughness, and wear resistance.

Product Example

• Alloy Steel Bolt (Cr-Mo Steel) M24×120 mm
• Thread Length: 60 mm
• Material: 35CrMo

35CrMo alloy steel fasteners are widely used in:

• High-pressure piping systems
• Oil and gas projects
• Heavy industrial equipment
• Power plant construction
• Mechanical engineering applications

Compared with standard carbon steel bolts, alloy steel bolts provide improved load-bearing capacity and better performance under high-temperature and high-stress conditions.

Industrial Washers and Locking Components

To support complete fastening assemblies, Haihao Group also supplied multiple washer types, including:

Flat Washers

• Precision Flat Washer M22
• Precision Flat Washer M30
• Flat Washer M20
• Special Flat Washer FRIA 575

Spring Lock Washers

• Zinc-Plated Spring Lock Washer W24
• Cadmium-Plated Spring Lock Washer W27
• Cadmium-Plated Spring Lock Washer W30

Belleville Spring Washers

• Belleville Spring Washer M16

These industrial washers help improve load distribution, vibration resistance, and fastening stability in demanding industrial environments.

ASTM A194 and GOST Standard Hex Nuts

The order also included industrial hex nuts manufactured according to international standards such as:

• ASTM A194
• GOST ISO 4032-2014

Supplied Nut Sizes

• M20 ASTM A194 steel hex nut
• M27 GOST ISO 4032-2014 hex nut
• M33 GOST ISO 4032-2014 hex nut
• M36 GOST ISO 4032-2014 hex nut

These nuts are suitable for use together with industrial bolts in pressure piping systems, steel structures, and industrial machinery projects.

Strict Quality Control Before Shipment

Haihao Group follows strict inspection procedures throughout production and shipment preparation.

Quality control includes:

• Dimensional inspection
• Thread gauge testing
• Surface coating inspection
• Mechanical property verification
• Material traceability management
• Packaging inspection

Each product batch was packed carefully to protect the fasteners during long-distance international transportation to Russia.

Why Global Customers Choose Haihao Group

Haihao Group has extensive experience supplying industrial piping products and fastening components to customers worldwide.

Our Advantages

• Rich export experience
• Stable product quality
• International standard manufacturing
• Fast production and delivery
• Professional technical support
• Customized industrial fastening solutions

We continue to support customers in oil & gas, petrochemical, energy, shipbuilding, construction, and heavy industry sectors with reliable industrial products.

Applications of Industrial Steel Fasteners

Industrial bolts, nuts, and washers supplied by Haihao Group are widely used in:

• Pipeline systems
• Petrochemical plants
• Offshore engineering
• Steel structure projects
• Power generation facilities
• Mining equipment
• Mechanical equipment manufacturing

Reliable fastening systems are essential for maintaining operational safety and long-term equipment stability.

Contact Haihao Group for Industrial Fastening Solutions

Haihao Group can provide a full range of industrial fasteners, steel bolts, nuts, washers, stud bolts, and piping products according to ASTM, ISO, DIN, GOST, and customer specifications.

If you are looking for a reliable supplier of industrial steel fasteners and pipeline products, welcome to contact Haihao Group for technical support and competitive quotations.

FAQ

What materials are used for industrial hex bolts?

Industrial hex bolts are commonly manufactured from mild steel, carbon steel, alloy steel, stainless steel, and 35CrMo alloy steel depending on application requirements.

What is 35CrMo alloy steel used for?

35CrMo alloy steel is widely used for high-strength bolts, pressure equipment, heavy machinery, and industrial applications requiring high toughness and wear resistance.

What standard is ASTM A194?

ASTM A194 is an international standard covering carbon steel and alloy steel nuts for high-pressure and high-temperature service applications.

What are spring lock washers used for?

Spring lock washers help prevent bolt loosening caused by vibration and dynamic loads in industrial equipment and piping systems.

Can Haihao Group supply customized industrial fasteners?

Yes. Haihao Group can manufacture customized industrial bolts, nuts, washers, and stud rods according to customer drawings, specifications, and international standards.