Bolts and Washers Supplied to Russia for Industrial Pipeline Applications
Haihao Group has successfully completed the delivery of a batch of industrial bolts and washers for a customer in Russia. The shipment covers a wide range of hex bolts, high-strength bolts, socket head cap screws, flat washers, and spring washers, supporting the assembly and installation of pipeline-related equipment.
All fasteners were manufactured with stable dimensional accuracy and surface treatment control, ensuring reliable performance during installation and long-term service.
Cadmium plated and zinc coated flat washers and spring washers
Scope of Supplied Fasteners
The order includes carbon steel and high-strength fasteners in multiple diameters and lengths, suitable for mechanical connections in industrial and pipeline environments.
Hex Bolts and High-Strength Bolts
- Raw steel hex bolts
- Sizes: 8 × 60, 12 × 30, 20 × 120, 20 × 160
- Sizes: 22 × 90, 22 × 200, 24 × 50
- High-strength bolt
- HR 24 × 120
These industrial hex bolts and high-strength bolts are commonly used for structural connections where stable clamping force and durability are required.
Socket Head Cap Screws
- Socket head cap screw
- Size: 8 × 40
Socket head cap screws provide compact installation and are suitable for confined assembly spaces in mechanical and pipeline-related equipment.
Washers (Flat & Spring)
- Spring (Grower) washers
- W30, size 20
- Surface finish: cadmium-plated and zinc-coated
- Flat washers
- Precision flat washer M22
- Flat washer size 16 (cadmium-coated)
- Flat washer size 20 (zinc-coated)
These flat washers and spring washers help distribute load evenly, reduce loosening caused by vibration, and improve the reliability of bolted connections.
Material and Surface Treatment Control
The supplied fasteners were produced from qualified carbon steel and high-strength steel materials. Surface treatments such as cadmium plating and zinc coating were applied to enhance corrosion resistance, especially for applications exposed to humid or industrial environments.
Each batch underwent dimensional inspection and visual checks before packing to ensure consistency with customer specifications.
Reliable Fastener Supply for the Russian Market
With years of experience supplying bolts and washers for pipeline and industrial projects, Haihao Group supports customers in Russia with stable quality, clear product identification, and export-oriented packaging. Our fastening solutions are widely used in pipeline construction, mechanical installation, and industrial maintenance projects.