Heavy Hex Nut Factory

Hex Bolt Suppliers

China Track Bolt Manufacturers

Track Bolt

Track Bolt

Haixin® Track bolts are the typical and advantage products of Ningbo Haixin Railroad Material Co., Ltd. The company was specially built for railroad material. Our factory has a full set of production management system and quality control procedures to ensure all our railroad tract bolts are of high quality. We focus on maintaining a high level of professionalism, service and quality. As one of the earliest and best railway fasteners manufacturers in China, Ningbo Haixin Railroad Material Co., Ltd is your best choice.

There are several types of railroad track bolts. The most common ones are oval neck track bolts, diamond neck track bolts and elliptic neck track bolts. And these railroad track bolts always come with heavy square nuts or heavy hexagonal nuts. There are various packing ways for track bolts. The common packing materials are 200lb metal keg, 50lb metal pail, 50lb plastic pail, wooden case and pallet box. Our factory has our own production lines for both bolts and nuts, so you can get your railroad track bolts and nuts in one plant conveniently.

Track bolts are mainly used in railway construction as the means of securing the track’s rails to the surface they are applied to. Track bolts can also be used in bridge and chemical pipelines. By now, our factory has produced railroad track bolts for more than 20 years and our products have been well accepted by customers from the USA and Canada. All success of our factory is due to the pursuit of best product quality and price.

Heavy Hex Nut

Heavy Hex Nut

Ningbo Haixin’ LM® heavy hex nuts are from size 3/8” to 4” by both cold forging and hot forging. Our monthly production capacity is more than 1200tons. These heavy hex nuts are mainly made of medium carbon steel and alloy steel. These nuts are somewhat larger than the standard hex nuts. The dimensions are according to ASME/ANSI B18.2.2. And the grades are mainly referred to ASTM A194 Gr.2H, Gr.2HM, Gr.4, Gr.7, or ASTM A563 Gr.A, Gr.B, Gr.C, and Gr.DH. Haixin® Heavy hex nuts are mainly used in oil & gas projects, heavy industry, machinery and mining.

Our logo for heavy hex nuts is LM, which was registered in the USA from year 2002 and recorded by FQA. We also have certificates of PED and API-20E of BSL1 and BSL2. The whole production and all the related inspection can be done in our own factory. You can always trust the quality.
Heavy hex nuts are mainly used in oil & gas projects, heavy industry, machinery and mining.

Hex Nut

Hex Nut

Ningbo Haixin is a professional fasteners manufacturer and hex nuts supplier in China. Haixin® has brought in 30 sets of automatic cold forging machines and 3 lines of heat treatment mesh belt furnace from Taiwan. Haixin® now have 6 sets of mechanical arm hot forging machines, and more than 40 sets of automatic CNC machining equipment. Our current monthly production capacity is up to 2300 tons. Our factory has been specialized in hex nuts production for more than 25 years. The production technology and quality level are in the leading position in China. We look forward to becoming your long-term partner in China.

Ningbo Haixin can produce the kinds of hex nuts you need. These hex nuts include standards of DIN934, ISO4032, DIN6915, EN14399, EN15048,DASt021, ISO4033, ISO4035 and ISO8673. And the mechanical property is per ISO898-2 or DIN267-4.Our production range is from diameter M6 to M100. And our factory can offer various finishes and surfaces, such as zinc plating, HDG, Gelmet, Delta, Dacromet, flZnL and so on. The factory has its own laboratory, and all the related chemical analysis, plating thickness test, hardness test, proofloading test, and torque test can be carried out in our own factory.

HX is our logo for hex nuts, which is famous in Europe. Our hex nuts have a good quality & price advantage and cover most of the European markets. These hex nuts are widely used in steel structure construction,wind power generation, buildings, bridges, machinery and equipment.
Ningbo Haixin Hardware Co., Ltd has got certificates of ISO9001, CE, American Petroleum Association API, ISO14001 and ISO45001. IATF16949, CNAS17025 and DASt021 are also in the certification audit stage.

Flange Nut

Flange Nut

Haixin® Flange nuts are the strong and advantage products of Ningbo HaiXin .And Ningbo HaiXin is one of the biggest flange nuts factories in China. Our factory focuses on the development and production of high strength fasteners and special fasteners for industrial and construction fields. After years of continuous development, Ningbo Haixin has its excellent technology and production team, and has become a professional fasteners manufacturer for the global market.We hope to establish a friendly cooperative relationship with your company with high quality products, reasonable price, considerate service and create a better future together.

Haixin® Flange nuts have a wide flange at one end that acts as an integrated, not-spinning washer. This serves to distribute the pressure of the nut over the part being secured, reducing the chance of damage to the part and making it less likely to loosen as a result of an uneven fastening surface. Hex flange nuts have become more and more popular in wind energy field. Many wind turbine customers have changed common HV hex nuts to hex flange nuts. This is a trend, because hex flange nuts have better and safer performance.

Our factory strictly carries out every test of the flange nuts. Testings including dimensions, gauges, decarburization, 90% martensite, MPI, hardness, proofload, run out, marks and finish are carried out on every batch. So the quality can be fully guaranteed. The flange nuts have been well accepted by wind power giants and widely exported to Germany, Denmark, Norway, Spain, Great Britain, Poland, India, etc.

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ABout US

Established in 1995, Ningbo Haixin Hardware Co.,Ltd is one of the earliest fasteners manufacturer in China. Since establishment, the company has been focusing on the development and production of high strength fasteners and special fasteners for industrial and construction fields. Such as track bolt, hex nut, lock nut and so on. After years of continuous development, Ningbo Haixin has an excellent technology and production team, and has become a professional fasteners manufacturer for global market.

News

“CBAM”, came into force from October 1st 2023. — “CBAM”, came into force from October 1st 2023.
“CBAM” (Carbon Border Adjustment Mechanism) means that all importers who bring in certain products from a third country into the European Union must pay compensation for the emissions caused during production. The regulation obliges importers to prove and document the CO2 emissions of the production chain and offset them by purchasing certificates. During a transitional period from 1st October 2023 to 31st December 2025 the new regulation will initially apply to a limited extent. This regulation will come into full extent in January 2026.
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13th Fastener Expo Shanghai — 13th Fastener Expo Shanghai
Welcome to our booth NC111 at the 13th Fastener Expo Shanghai on June.5-7.
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Ningbo Haixin Hardware Co.,Ltd — Ningbo Haixin Hardware Co.,Ltd
Ningbo Haixin Hardware Co.,Ltd has got API-20E(BSL 1, BSL 2) from American Petroleum Institute on April 25.2022. And the company has passed the on-site laboratory audit of CNAS17025. We are hopefully to get CNAS17025 certification before Dec.2022.
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