Introduction of butterfly nut standard

I think many people have seen butterfly nuts in their daily lives. Butterfly nut is actually a kind of little wings-shaped nut, which has a good aesthetic effect. When the wing nut is used, it can be removed directly by hand without using other tools. Butterfly nuts are screwed together with bolts or screws of the same specification, which are mainly used to connect fastening parts in manufacturing machinery.

Butterfly nut is also called hand nut. Usually, the butterfly nut can be installed and disassembled directly by hand, and it is very convenient to use without other tools. Generally speaking, butterfly nuts are often used to adjust the tightness.

The surface of butterfly nut is processed by zinc plating, nickel plating, silver plating or bluing, electric painting and so on. Butterfly nuts are widely used in construction, machinery, railways, steel, power plants and many other fields.

National standard for butterfly nuts

Butterfly nut adopts round wing standard GB/T? 62. 1-2004, what is the standard of butterfly nut? 62.2-2004，GB/T？ 62.3-2004, the standard for die casting butterfly nuts is GB/T? 62.4-2004。

The development diagram of the wing nut is as follows:

Technical requirements for wing nuts (with attached drawings)

The material brand of butterfly nut is only recommended for everyone here. You can choose other material grades and different technical conditions according to your actual situation and experience.

The standard dimensions of wing nuts are as follows: (in millimeters)

Thread specification d

Advanced (short for deluxe)

maximum

D

≈

L

K

H

≈

Y

maximum

Type a

(high type)

Type b

(low type)

L

maximum

Multiple sclerosis

Multiple sclerosis

M3

10

five

16

+- 1

6.5

+- 1

2

four

3.5

+-0.5

1

1.4

+-0.3

+-0.8

0.4

M4

12

six

19

8.5

2.5

five

four

1.6

0.4

M5

13

seven

22

nine

three

5.5

4.5

1.8

+-0.4

1

0.5

M6

15

nine

25

9.5

3.5

six

five

+-0.8

1.2

2.4

+-0.5

1.2

0.5

M8

17

10

28

1 1

five

seven

six

3. 1

0.6

M 10

20

12

35

+- 1.5

12

six

eight

seven

3.8

0.7

The above content is a detailed introduction to the specifications, standards and dimensions of the butterfly nut. Now you have a certain understanding of the standard of wing nuts.

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