Recently, Ningbo Mohai Fasteners Co., Ltd. (hereinafter referred to as "Mohai Fasteners") has triggered a procurement boom in the domestic and international industrial manufacturing sectors with its independently developed portfolio of high-end fastener products. Its core products—Grade 8.8 structural hexagon bolts, high-strength hexagon studs and matching hexagon nuts—have successfully secured orders for a number of major international projects by virtue of their outstanding mechanical properties, stable quality performance and wide scenario adaptability, emerging as the preferred fastener solution for industries such as machinery manufacturing, construction engineering and rail transit.
As a modern high-tech enterprise integrating R&D, production, manufacturing and sales, Mohai Fasteners has been deeply engaged in the high-end fastener field for many years, adhering to the core strategy of "driving product upgrading through technological innovation". Leveraging the industrial cluster advantages of Yongnian District, Handan City, Hebei Province—the "Hometown of Fasteners in China"—the company has built a full-chain quality control system covering raw material selection, core process R&D and precision inspection of finished products, ensuring that every product meets advanced international standards.
The Grade 8.8 structural hexagon bolts, which are highly favored by the market this time, are one of Mohai Fasteners' star products. Made of high-quality alloy structural steel, the product is crafted through core processes such as precision cold heading, multi-pass heat treatment and surface anti-corrosion treatment. With a tensile strength of up to 800MPa and a yield strength of 640MPa, it fully meets the stringent requirements for high-strength connection of steel structures. The head of the product adopts an optimized hexagonal structure, featuring uniform stress distribution and easy installation. Combined with high-precision thread processing technology, it ensures the stability and durability of the connection. It can be widely applied to heavy-duty steel structure scenarios such as large bridges, high-rise buildings and industrial plants, effectively withstanding the impact of complex environments like vibration and corrosion.
The high-strength hexagon studs launched simultaneously also boast a high strength grade of 8.8. Targeting the personalized needs of scenarios such as equipment assembly and mechanical connection, the company provides customized services for various specifications and sizes, including different thread sizes ranging from M6 to M30 and length options from 10mm to 150mm, which can accurately meet the installation requirements of various industrial equipment. The matching hexagon nuts are manufactured by an integrated forming process, featuring high thread precision and tight engagement. They form a perfect match with the company’s bolt products, jointly constituting a fastener solution characterized by "high strength, high reliability and high adaptability", which greatly improves customers' assembly efficiency and the safety of connection structures.
To ensure the stability of product quality, Mohai Fasteners has established a full-process quality management system compliant with ISO9001 standards. The company is equipped with more than 20 sets of advanced domestic and international production equipment as well as high-precision testing instruments, including tensile testing machines, hardness testers and thread gauges. It conducts three rounds of rigorous inspections on key indicators such as dimensional accuracy, mechanical properties and anti-corrosion performance of each batch of products, ensuring that the qualification rate of ex-factory products reaches 100%. Meanwhile, the company continuously invests in R&D resources, optimizes product design and production processes according to the special needs of different industries, and has successively launched custom products with low temperature resistance, high temperature resistance and corrosion resistance, to meet the complex application scenarios in fields such as the automotive industry, power equipment and rail transit.
Thanks to its excellent product quality and professional technical services, Mohai Fasteners' products have been exported to many regions including Asia, Europe, America and Africa, winning extensive recognition and long-term cooperation from customers at home and abroad. At present, the company's products have been successfully applied to a number of key engineering projects, including overseas large-scale bridge construction, domestic new energy power station construction and high-end equipment manufacturing, making Mohai Fasteners a trusted fastener supplier in the global industrial sector.
"Empowering the development of global industry with high-quality products is the mission and pursuit of Mohai Fasteners," said a person in charge of the company. He added that in the future, the company will continue to focus on the R&D and innovation of high-end fasteners, expand its product portfolio, optimize its service system, develop more competitive product solutions targeting the needs of emerging fields such as new energy and high-end manufacturing, and work hand in hand with global partners to provide solid support for the high-quality development of the industrial sector.
Post time: Dec-23-2025
