Wholesale DIN 7967:1970 Lock Nut

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DIN 7967:1970 Lock Nut

DIN 7967:1970 Locking Nut is a thin locking component used to provide additional retention after a threaded connection is assembled. Its compact structure can offer auxiliary holding force within limited space and is often used together with standard nuts or specific threaded parts.

This product can be applied in mechanical maintenance, light equipment, instrument brackets, adjustment mechanisms, and auxiliary anti-loosening connections. The compact form is useful where installation height and component weight must be controlled.

Suitable materials and surface treatments can be selected according to thread compatibility and environmental conditions to meet general rust protection and repeated assembly needs.

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Dimensions unit: mm 

Thread size d

M4

M5

M6

M8

M10

M12

M14

M16

M18

M20

M22

P

Series 1

0.7

0.8

1

1.25

1.5

1.75

2

2

2.5

2.5

2.5

Series 2

-

-

-

1

1.25

1.5

1.5

1.5

2

2

2

Series 3

-

-

-

-

1

1.25

-

-

1.5

1.5

1.5

d

Series 1

3.5

4.5

5.3

6.9

8.6

10.4

12

14.1

15.5

17.6

19.6

Series 2

-

-

-

7.1

9

10.7

12.7

14.8

16.2

18.3

20.3

Series 3

-

-

-

-

9.3

11

-

-

16.8

18.8

20.8

e

≈

8.1

9.2

11.5

15

19.6

21.9

25.4

27.7

31.2

34.6

36.9

m

2.5

2.5

3

3.5

4

4.5

5

5

5.5

6

6

s

Max.=Nominal (h13)

7

8

10

13

17

19

22

24

27

30

32

Min.

6.78

7.78

9.78

12.73

16.73

18.67

21.67

23.67

26.67

29.67

31.61

t

Series 1

0.3

0.4

0.4

0.5

0.5

0.6

0.6

0.7

0.7

0.8

0.8

Series 2

-

-

-

0.4

0.5

0.6

0.6

0.7

0.7

0.8

0.8

Series 3

-

-

-

-

0.5

0.6

-

-

0.7

0.7

0.7

 Weight per thousand pieces kg 

Series 1

0.17

0.28

0.4

0.9

1.4

1.9

2.5

3.4

4.1

5.8

6.4

Series 2

-

-

-

0.7

1.4

1.9

2.5

3.4

4.1

5.8

6.4

Series 3

-

-

-

-

1.4

1.9

-

-

4.1

5.1

5.6

  

Thread size d

M24

M27

M30

M33

M36

M39

M42

M45

M48

M52

P

Series 1

3

3

3.5

3.5

4

4

4.5

4.5

5

5

Series 2

2

2

2

2

3

3

3

3

3

3

Series 3

1.5

-

-

-

-

-

-

-

-

-

d

Series 1

21

24.2

26.6

29.8

32.2

35.2

37.6

40.9

43.9

48.2

Series 2

22.5

25.5

28.5

31.5

33.6

36.6

39.8

42.8

45.8

49.8

Series 3

22.8

-

-

-

-

-

-

-

-

-

e

≈

41.6

47.3

53.1

57.7

63.5

69.3

75

80.8

86.5

92.4

m

7

7

8

8

9

9

11

12

14

16

s

Max.=Nominal (h13)

36

41

46

50

55

60

65

70

75

80

Min.

35.61

40.61

45.61

49.61

54.54

59.54

64.54

69.54

74.54

79.54

t

Series 1

0.9

1

1.1

1.2

1.3

1.3

1.4

1.5

1.6

1.7

Series 2

0.9

1

1

1

1.3

1.3

1.4

1.5

1.5

1.5

Series 3

0.7

-

-

-

-

-

-

-

-

-

 Weight per thousand pieces kg 

Series 1

9.5

13

17.5

22

29

32

45

64

80

95

Series 2

9.5

13

16

18.5

29

32

45

64

75

80

Series 3

7.4

-

-

-

-

-

-

-

-

-

 

FAQ

Frequently Asked Questions

  • 1. How soon can I expect a reply after sending an inquiry?

    A: We take every inquiry seriously. On working days, we will respond within 12 hours after receiving your inquiry.

  • 2. What products do you mainly offer?

    A: We focus on the production of fasteners made of carbon steel, stainless steel, and low-alloy steel. We are a direct manufacturer with independent production capacity. DIN 7967:1970 Lock Nut Factory. We own several fastener manufacturing facilities and have an international sales department, providing full-process services from production to export.

  • 3. Do you support customized production?

    A: Customized production is our core business. We can develop and manufacture products based on the drawings or samples you provide.

  • 4. Do you produce standard parts?

    A: Yes. In addition to custom products, we also produce general construction machinery parts (GET parts) for equipment such as excavators, including bucket teeth, tooth holders, corner blades, pins, clips, bolts and nuts. DIN 7967:1970 Lock Nut Wholesale.

  • 5. What is your production capacity?

    A: We have 12 energy-efficient and environmentally friendly modern production lines (including one fully automatic shell molding line and four heat treatment lines), with an annual production capacity exceeding 20,000 tons, enabling us to steadily meet various order requirements.

  • 6. What are your payment terms?

    A: Trade terms (such as FOB, CIF, etc.) are confirmed when quoting. For batch production, we typically require a 30% deposit, with the balance paid against the copy of the bill of lading. T/T is the main payment method accepted, and L/C can also be negotiated.

  • 7. How is the shipment arranged?

    A: We are only 35 km away from Shanghai Port and Ningbo Port, so sea freight is the main mode of transportation, which is convenient and efficient. For urgent deliveries, we can also arrange air freight via Ningbo or Shanghai airports.

Better Fastener Industry Co., Ltd.

About Us

BETTER FASTENER INDUSTRY CO., LTD.

Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010. DIN 7967:1970 Lock Nut Suppliers in China.

The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.

With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.

Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery

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