About

Ningbo Datian Fastener Co., Ltd. was established in January 2010. Located at No. 839, Wenluo West Road, Changshi Village, Jiulonghu Town, Ningbo, we have a construction area of more than 17,000 square meters (about 4.3 acres) and 125 current employees. We mainly produces “DT” brand fasteners, with an annual production capacity of more than 15,000 tons and an output value of more than 25 million US dollars. Our fastener for sale includes GB, ISO, DIN, AS, ASNI (IFI), BS, UNI, JIS standard nuts, bolts and studs, etc. Taking science as the guide, Datian Fastener keeps making progress, provides high-quality wholesale fasteners for the market, and has established a complete sales network in China. Our market popularity, market image, and market share are increasing year by year. We now have a strong production capacity and economic strength.https://www.dtnut.com/

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DATIAN (DT) Fastener, also known as DATIAN High Strength Nuts, is a member of China Fastener Association, specializing in the production of various standard hexagonal nuts, high strength hex nuts, square nuts, flange nuts, self-locking nuts, T nuts, non-standard nuts, and various standard bolts and screws. As an ISO9001 certificated custom fastener manufacturer, we have heat treatment machines in-house and our wholesale fasteners are widely distributed to America, Europe, Southeast Asia, and Middle East. Standards involved: ANSI/DIN/BS/JIS/AS/ISO and UNI, etc. Grade involved: 6/8/10/7/7M/2H, etc. Metric diameter range: M10-M100; Inch diameter range: 3/8"-4". Material involved: carbon steel and stainless steel.

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EN 1661/14218 Flange Nuts

EN 1661/14218 hex flange nut is a nut with a wide flange at one end that acts as an integral washer. This serves to distribute the pressure of the nut over the part being fastened, reducing the possibility of damage to the part and making it less likely to loosen due to uneven tightening surfaces. These large flange nut are mostly hexagonal in shape and are made of hardened steel, usually plated with zinc.

 

EN 1661/en 14218 Large hexagonal nut with collar Specifications

 DIN EN 1661 Flange Nuts

EN 1661 - 1998 Hexagon Nuts With Flange

 

Equivalent norm: GB/T 6177.1, ISO 4161, ANSI/ASME B18.2.4.4M, NF E 25-406

 

EN 1661 Hot Dipped Galvanized Flange Nut Dimensions

 

 EN 14218 Flange Nuts

EN 14218 - 2003 Hexagon Head Nuts With Flange With Fine Pitch Thread

 

EN 14218 Hot Dipped Galvanized Flange Nut Dimensions

 

 

As a professional fastener manufacturers, DT Fastener trys our best to provide quality fasteners and service for you.

 

Flange Nut

The proportion of wholesale flanged nut production of DATIAN (DT) Fasteners is increasing year by year. Compared with the normal hexagon nuts, the Flange Nuts has one more circular flange with a tooth pattern, which is firmer and has the effect of preventing loosening. The flange serrated nuts is mostly used in pipeline connections or workplaces that need to increase the contact surface of the nut.

 

Types of flange nuts

Searching for The Right Wholesale Hex Flange Nuts

ANSI / ASME B18.2.2 Flange Nuts

EN 1661/14218 Flange Nuts

ISO 4161 Flange Nuts

DIN 6331/6923/977 Flange Nuts

JIS B 1190 Flange Nuts

 

Flange Nut Uses

Due to the small size of flange nuts, irregular shapes, and some need to be threaded, there are some obvious defects in hot-dip galvanizing.

 

  1. The thread is difficult to screw after plating. After hot-dip galvanizing, the residual zinc sticking to the thread is not easy to remove, and the thickness of the zinc layer is not uniform, which affects the cooperation of the threaded parts.

 

  1. The high operating temperature of hot-dip galvanizing will reduce the mechanical strength of the high-strength flange nut. The strength of some threads of 8.8 bolts after hot dip galvanizing will be lower than the standard requirements.

 

  1. The hot-dip galvanizing process of fasteners is carried out at high temperatures. When the solvent is dried and the workpiece to be plated is dipped into the pool, strong and irritating hydrogen gas will be precipitated.

 

Although there are many defects in hot-dip galvanizing of fasteners, because of the thick coating, good bonding strength and long-term corrosion effect of hot-dip galvanized fasteners. It has always been respected in the power, communications, and transportation sectors.

 

Flange Nut Standard Dimensions

Click ANSI / ASME B18.2.2 Flange Nuts for more information.

 

Wholesale Hexagon Nut With Flange from DT

DT Hex Nut Flange Material: A3 low carbon steel 35K high-speed steel wire 45# steel 40CR 35Crmoa Hardness grade: 4, 5, 6, 8, 10, 12

 

Surface  Treatment: The surface treatment of the hexagonal flange nuts can be generally divided into three types - color galvanized, white galvanized, black galvanized, and generally cold galvanized!

 

Main Flanged Nut Specifications: M5 M6 M8 M10 M12 M16 M20 (M20 and above specifications and M14 M18 flange nuts are not commonly used)

 

Related functions of flange nuts and general hexagon nuts are basically the same size and thread specification, but compared with hex nuts for sale, it is a one-piece gasket and nut, and there are anti-slip tooth patterns on the bottom, which increases the size of the nut and the workpiece. Compared with the combination of ordinary nut and washer, it is firmer and has greater tensile force. Generally, the specifications of common flange nuts are generally below M20. Because most flanged nuts are used on pipes and flanges, they are restricted by the workpiece, and the specifications of flange nuts are smaller than those of nuts. Some flanged nuts above M20 are mostly flat flanges, that is, there is no tooth pattern on the flange surface. Most of these wholesale fasteners are used in some special equipment and special places.

 

Datian Flanged Nuts FAQs

How do you install a flange nut?

First, check whether the position of the nut support surface on the back of the hexagonal flange should be parallel and smooth. If there are scratches, nicks, mud, corrosion and burrs, the flange nuts must be replaced or reworked. When installing the hex nut flange, first find the hole where the nut can be installed, then align the hole and insert it, and then slowly turn it clockwise until it is tightened.

 

Do flange nuts need washers?

No. Because the flanged nut surface itself has the anti-slip and stop functions of the flat washer and the spring washer, there is no need to add the flat washer and the spring washer during assembly.

 

Are flanged nuts reusable?

Fasteners are generally not allowed to be reused, especially for some high-strength and high-corrosion industries, otherwise there will be a major accident.

 

What Is A flange lock nut?

A flange nut looks like a standard hex nut from one side, but the bottom is widened into a circular flange, creating a bell-like shape. Manufacturers serrate the bearing surface of that flange to create serrated flange nuts, allowing for a better grip on the surface of the joint.

 

For more information about flange nut price, please feel free to contact us!

 

There are many flange nuts suppliers, but we are the best choice for you.

 

If you are looking for a reliable fastener factory, please contact us.

 

GB 1229 STRUCTURE NUTS: Class 8, 10

DATIAN Fasteners is also a manufacturer of fasteners specializing in the production of high-strength steel structure nuts. In recent years, structural steel bolts and nuts have been widely used, and the common ones are GB/T 1229 - 2006, etc. GB 1229 structure nuts are widely used in steel structure construction, machinery industry, and oil pipelines.

 

GB 1229 STRUCTURE NUTS: Class 8, 10 Specifications

 Structural Nuts GB 1229

GB /T 1229 - 2006 High Strength Large Hexagon Nuts For Steel Structures

 

GB 1229 STRUCTURE NUTS: Class 8, 10 Dimensions

 

 

 

As a professional fastener manufacturers, Datian provides quality nut and bolt supply at competitive wholesale prices. Feel free to contact at any time.

 

 

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