Flang Nut

Flange Nuts

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Product Details

What are flange nuts?

Introduction of flange nuts:

A flange nut is a nut that has a wide flange at one end that acts as an integrated, non-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. These nuts are mostly hexagonal in shape and are made up of hardened steel and often coated with zinc.


The flange may be serrated to provide a locking action. The serrations are angled such that they keep the nut from rotating in the direction that would loosen the nut. Because of the serrations they cannot be used with a washer or on surfaces that must not be scratched. The serrations help in preventing the vibration of the nut from moving the fastener, thus maintaining the holding power of nut.

Shanghai Jinrui Standard Parts Supply Co., Ltd. is one of the leading manufacturers and suppliers of ANSI / ASME b 18.16.4 hex flange nuts in China, welcome to buy hex flange nuts from our factory and company.


Features and advantages of flange nuts:

1.The hex flange nuts produced by our company all use the raw materials from well-known steel mills, and corresponding material reports can be provided.

2. The size has wide range, such as from M5-M20.

3. The hex flange nuts is made of high-quality steel, it has high thread precision, It is very smooth when matched with the bolt.

4. Grade of hex flange nuts meets ISO standard, such as ISO898. Also our hex flange nuts has beautiful coating with good corrosion resistance. The toughness of the product covered with the coating will also be strengthened and will be more durable.



Production process of flange nuts:

生产流程


Specification of flange nuts:

1,DIN6923 Hex flange nuts

DIN6923 Hex flange nuts

d

M5

M6

M8

M10

M12

M14

M16

M20

P

Thread Pitch

Coarse Thread

0.8

1

1.25

1.5

1.75

2

2

2.5

Fine Thread 1

/

/

1

1.25

1.5

1.5

1.5

1.5

Fine Thread 2

/

/

/

-1

-1.25

/

/

/

c

MIN

1

1.1

1.2

1.5

1.8

2.1

2.4

3

da

MIN

5

6

8

10

12

14

16

20

MAX

5.75

6.75

8.75

10.8

13

15.1

17.3

21.6

dc

MAX

11.8

14.2

17.9

21.8

26

29.9

34.5

42.8

dw

MIN

9.8

12.2

15.8

19.6

23.8

27.6

31.9

39.9

e

MIN

8.79

11.05

14.38

16.64

20.03

23.36

26.75

32.95

m

MAX

5

6

8

10

12

14

16

20

MIN

4.7

5.7

7.6

9.6

11.6

13.3

15.3

18.9

mw

MIN

2.2

3.1

4.5

5.5

6.7

7.8

9

11.1

s

MAX=Nominal Size

8

10

13

15

18

21

24

30

MIN

7.78

9.78

12.73

14.73

17.73

20.67

23.67

29.67

r

MAX

0.3

0.36

0.48

0.6

0.72

0.88

0.96

1.2


Common Grade and coating:

 Standard

Material

Grade

Finish

Thread

DIN933

DIN931

ISO4014

ISO4017

ASME B 18.2.1

carbon steel

4.6

4.8

5.8

8.8

10.9

12.9

A2-70

A4-70

Plain

UNC

Zinc plated

Alloy steel

Yellow zinc plated

PTFE

Stainless steel

Black Oxide

UNF

Dacromet

Other

HDG

Other


Application area of flange nuts:

The application range of the products produced by the company is very wide. For example, hex flange nuts are used in the fields of petrochemical industry, automobile manufacturing, construction, pressure piping, rail transit, steel structure engineering, large-scale power generation machinery facilities and infrastructure. Of course, in some specific positions in these areas, some other products will also be used, such as rail bolts, flange nuts, U-bolts, flat head hexagon bolts, T-bolts, hex bolts and round head Hex bolts hex nuts, etc.

Large wind turbine

Large Wind Turbine

Petrochemical Field

Petrochemical Field


Large industrial machinery

Large Industrial Machinery

Rail transit field

Rail Transit Field


How to buy flange nuts from us?

1. Inquiry

Fasteners have two types. One is standard parts, such as DIN6923, hex flange nuts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN6923, M12,grade 8, zinc plated and 20000pcs.If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.


2. Price and Payment

The price can be price/piece, or price/kg. We can quote EXW, FOB, CFR, CIF with T/T, L/C, Western Union, etc. Or other ways agreed with customers.


3. Order

After checking, if the price and lead time are both ok, then we can confirm the order of bolt and nut. We will start to produce after deposit according the requirements we promise.


4. Quality Insurance

We buy PICC PRODUCTS LIABILITY INSURANCE for our products every year. We can agree in the contract that we will replace the goods or refund the money if there are some quality issues after you get our products. If quality problems happen after use, we will track the goods to deal the problems. And our insurance policy can cover your lost.


Why choose us?

Company introduction and advantages

1. We are manufacturer of hex flange nuts and bolts for more than 20 years. We have two factories, one in Shanghai and the other in Jiangsu. Our production capacity can be 20000 + tons per year. We can customize our products according to customers' requirements, drawings and samples.


2. We have experienced quality inspection team and production team to strictly control the products of customers.We have certificates of ISO9001 and IATF16949.


3. We have a large amount of stock, whether it is large quantities or small quantities of goods are acceptable to buy.


4. We have more than 20 years of industry experience and perfect supply chain service, which can help customers to buy a variety of products.


FAQ


Q1: Are you a factory or trading company?

A: We are manufacturer of hex bolts and nut for more than 20 years . We have two factories, one in Shanghai and the other in Jiangsu. Our production capacity can be 20000 + tons per year. We can customize our products according to customers' requirements, drawings and samples.


Q2: How many years you do foreign trade?

A: We have more than 20 years experience in exporting products to worldwide countries with our best quality. Now we have exported more than 40 countries, such as Spain, Germany, Italy, Belgium, United Kingdom, Lithuania, USA, Canada, Australia, Singapore,Japan, Thailand, Malaysia, South Korea,Indonesia, Egypt, Philippines and so on.


Q3: Do you have enough outputs?

A: We have enough stock in warehouses with abundant capital. We offer 24-hour services. For most common standards, we have them on stock, such as hex bolts, hex nuts, etc. 


Q4: How to ensure that every process's quality?

A: First, we have technical drawings for each product when producing.

Second, our workers most have more than 10-years experience of doing hex bolts.

Third, our QC people will do inspection every 2 hours. If finding the bad parts, they will stop the porduction immediately.

Then,the finished parts will be checked again before shipment which insures every product's quality.


Q5: How to ensure the safety of long-distance transportation?

A: We pack into cartons first, and then pack cartons on pallets. The pallet is very easy to lift by Forklift wihch will protect the cartons from damage. Professional packing teams which keep every packing safely.


Q6: What products can you customize?

A:One is standard parts, such as DIN933, hex bolts. The other is Non-standard parts. If you want standard parts, you can tell the standard, size, grade(material) ,coating and quantity. For example, you want to buy DIN933, M12X60,grade 8.8, zinc plated and 20000pcs.

If you want non-standard parts, you can show us samples, drawings or detail descriptions. Then our engineer will do the technical drawings for you.

There are many, such as hexagon bolts, flange bolts, round head square neck bolts, as well as track bolts, U-bolts, T-bolts, flat head hexagon bolts, hex nuts, hex flange nuts .


Q7: Can you provide some sample?

A: Samples can be provided as your requirements.




Product FAQ


What Are Heavy Hex Bolts

Heavy-duty hex bolts are a kind of hex bolts. Their heads are generally large. Commonly used A325, A325M, A490, A490M and other standards, and American Standard ASME/ANSI B18.2.1-1981, GBB1228 and other steel structure heavy-duty hex bolts.


Hex Bolt Is Stripped?

Bolted connections are a common method of attachment. However, in the process of assembling agricultural machinery, the bolts may cause slipping, breaking and other failure phenomena due to various factors or improper assembly. In the process of bolt assembly on site, it mainly involves the angle of bolt tightening.


How To Inspect Hex Bolts?

Bolt inspection is divided into manual and machine. Labor is primitive and is also used as a universal consistent detection method. In order to minimize the outflow of defective products, the general production enterprise personnel shall visually inspect the packaged or shipped products to eliminate defective products (quality issues including tooth injury, mixing, rust, etc.).


How Are Hex Bolts Measured

To measure hexagonal bolts, please use a caliper. Vernier caliper is a common tool for measuring hexagonal bolts. It is usually accurate to 0.01 cm, but it is more complicated than a tape measure. The measuring method is usually to measure the thread diameter and thread length.


How Hex Bolts Are Made

The production of hexagonal bolts is divided into several parts: the customer needs to provide samples, drawings or detailed data, and then select the production materials, and then need to be pickled and lubricated, and then subjected to wire drawing, wire cutting, and cold processing. Forging, trimming, and finally rolling into a semi-finished product. The semi-finished product needs to be heat treated and electroplated to be a finished product. Although the process is simple, the process of each part is very complicated.


What Are Hex Flange Bolts?

Simply put, hexagonal flange bolts are hexagonal heads and flanges and threads. Although it looks similar to hexagonal bolts, under certain conditions, the role of hexagonal flange bolts is particularly prominent


What Is Hex Bolt?

Hexagon bolt: A fastener consisting of a hex head and a screw that will be fitted with a nut to secure two parts with through holes.

This type of connection is called a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolted connection is a detachable connection.

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