China RAIL BOLT Manufacturers, Suppliers, Factory

Ningbo Haixin is one of the leading nut manufacturers in China. Our factory has a wide range of zinc plating nuts from diameter M6 to M100. And these zinc plating nuts are available in different materials and grades. As a direct sales nuts factory, we have ready stock for zinc plating nuts and export them to customers all over the work. With best quality and fastest delivery, we sincerely welcome customers at home and abroad for business cooperation.

Hex nuts flZnLnc are a kind of hex nuts with a novel anti-corrosion coating. flZnLnc is known as Non-Electrolytic Zinc Chromate. With a more environmentally friendly surface treatment system, hex nuts flZnLnc are more and more popular in the fasteners industry. Ningbo Haixin Hardware Co., Ltd.is a professional and leading nuts supplier. Then we choose the best flZnLnc coating suppliers in China for our customers to cooperate together and achieve win-win. With more new equipment coming and upgrading internally, our factory has more confidence to service our customers better.

This special Haixin® flange nut is also known and called collar nut. Compared with regular flange nut, there are two main differences. First, this special flange nut has strict and high requirement on run-out. Second, shape and appearance of the special flange nut is different, that is the diameter of its circle is equal to the width across the corner of the hexagon. Ningbo Haixin Hardware Co., Ltd has been researching, producing and supplying this special flange nut for many years.Our factory can offer premium quality collar nut to you with competitive price.

Haixin® EN15048 SB hex nuts are the certified products of Ningbo Haixin Hardware. Our factory is one of the first batch fastener manufacturers in China to obtain this certification.Our plant ensures to offer EN 15048 SB Hex Nut Class with the highest quality and the maximum safety in use. Ningbo Haixin Hardware is always your best choice for EN15048 SB hex nuts.

Haixin® DIN 933 Hex Head Bolts are kinds of full threaded bolts. They can be made of medium carbon and alloy carbon steel. Ningbo Haixin Hardware Co., Ltd is a professional Din933 hex head bolts manufacturer and exporter in Ningbo,China. Our factory has gained a huge amount of experience during our 30 years in this industry. With technical production management and procedures control, our products have gained a good reputation from our customers. We hope to be your honest and strategic supplier in China. We will provide you with our excellent quality, best price and service.

As a Haixin® fasteners manufacturer in China, Ningbo Haixin Hardware is famous for its high quality nuts. Heavy square nuts are the typical example of them. Every year, our factory supplies many Heavy square nuts to domestic market and United States.Sincerely look forward to cooperating with you in the near future.