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.

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ASTM A194 Gr.2HM Heavy Hex Nuts

Haixin® ASTM A194 Gr.2HM heavy hex nuts are our regular products with quite a long history. Ningbo Haixin Hardware Co., Ltd has started to produce these nuts since it was built in 1995. Our factory has offered ASTM A194 Gr.2HM heavy hex nuts to the United States, Canada, Mexico, South Asia and UAE for more than 25 years. Ningbo Haixin Hardware Co.,Ltd has become a trusted name in manufacturing a variety of high strength nuts and bolts. Our factory does everything we can to add value to our customers' experiences, allowing us to be their best option in China.

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ASTM A194 Gr.7 Heavy Hex Nut

Haixin® ASTM A194 Gr.7 heavy hex nut is one of the high strength heavy hex nuts. According to ASTM A194 standard, ASTM A194 Gr.7 heavy hex nut needs low temperature impact testing. Thus, heat treatment becomes the key process in production. Our factory has mesh belt furnaces, which were bought from Taiwan, China. We can do the heat treatment by ourselves. Our lab also has low temperature impact testing equipment. We can do all the tests in our own lab. We have exported ASTM A194 Gr.7 heavy hex nuts to the United States, Canada, Australia, Korea and Southeast Asia for more than 25 years. Quality First is our principle.

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Metric Heavy Hex Nuts

Metric heavy hex nuts shall be designated by the following data:product name, nominal diameter and threads pitch, steel property class or material identification, and protective coating if required. Metric heavy hex nuts are the advantage and traditional products of Ningbo Haixin® Hardware Co.,Ltd.our strong products. As the earliest fasteners manufacturer in Ningbo,China, our factory can offer full sizes metric heavy hex nuts with best quality and competitive price.

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ASTM A194 Gr.2H Heavy Hex Nuts

Haixin® ASTM A194 Gr.2H heavy hex nuts are our strong products. Our factory is one of the earliest and leading fasteners manufacturer in China. We have exported heavy hex nuts to the United States, Canada, Mexico and Korea for more than 25 years. With principle of Quality First and Reputation Best, LM ASTM A194 Gr.2H heavy hex nuts are well recognized. Look forward to becoming your long-term partner in China.

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ASTM A563 Gr DH Heavy Hex Nuts

Ningbo Haixin specializes in the production of all kinds of high strength fasteners. ASTM A563 Gr DH heavy hex nuts are the typical products of them. Based firmly on the ISO9001 quality system, our factory operates each link from raw material to the production process in strict accordance with the procedures. And as a direct sales factory, we can offer the best price and delivery for you. To choose ASTM A563 Gr DH heavy hex nuts from Ningbo Haixin is to choose safety, quality and success. We warmly welcome customers at home and abroad for business cooperation.

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ASTM A563 Gr C Heavy Hex Nuts

ASTM A563 Gr C heavy hex nuts are our regular products for export. Ningbo Haixin got an export license in 1995. After many years’ efforts and development, our company became the first class export enterprise in Ningbo, China. And our ASTM A563 Gr C heavy hex nuts have been greatly praised by overseas customers as well. With an advanced management system and annual capacity of 25000 tons, our factory is completely capable of providing better quality, faster delivery and a much more favorable price. We sincerely hope to work together with you to create a bright future.

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ASTM A563 Gr A Heavy Hex Nuts

Founded in 1995, Ningbo Haixin Hardware Co., Ltd covers an area of 40000 square meters. The annual output of fasteners reaches 25000 tons. The factory has a wide range of facilities to produce various bolts and nuts. ASTM A563 Gr A heavy hex nuts are among them. Compared with high strength nuts, there is a lower mechanical requirements on ASTM A563 Gr A heavy hex nuts, and they are easier to produce. Even then, they are widely used in large quantities. With the advantage of mass production, our factory can provide ASTM A563 Gr A heavy hex nuts with quick delivery and low prices.

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Haixin has been producing Heavy Hex Nut for many years, which is a professional manufacturer of fasteners in China. Our product Heavy Hex Nut is not only high quality but also supports the low price. If you are interested in our products, we will give you a satisfactory price and provide price list. We sincerely welcome new and old customers to visit our factory for consultation and negotiation.