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DIN 3017-1:2021 Worm Drive Hose Clamp Clamp

DIN 3017-1:2021 Worm Drive Hose Clamp Clamp adopts a worm drive hose clamp in A/B forms to meet the needs of connections requiring adjustable clamping around hoses, pipes, or round parts.

The worm mechanism tightens continuously through screw rotation, and the band wraps around the hose diameter to provide distributed clamping with easy installation, removal, and readjustment. Its advantages lie in a clear installation method, well-defined load path, and good adaptability across different materials and installation spaces.

This product is suitable for automotive piping, ventilation systems, water hoses, agricultural equipment, and general repair. Band width, material, stainless grade, and surface finish can be adjusted for the final application, balancing cost control, corrosion protection, and assembly consistency.

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Dimensions unit: inch 

Nominal Dimension

8~12

10~16

12~18

8~12

10~16

12~18

12~22

16~27

18~29

8~12

10~16

12~18

12~22

16~27

20~32

25~40

b1

±1

5

5

5

7.5

7.5

7.5

7.5

7.5

7.5

9

9

9

9

9

9

9

s

0.3~0.6

0.3~0.6

0.3~0.6

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.4~0.8

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

b2

Max.

8

8

8

12

12

12

12

12

12

14

14

14

14

14

14

14

h1

Max.

9

9

9

10

10

10

10

10

10

14

14

14

14

14

14

14

h2

±1

4.2

4.2

4.2

6

6

6

6

6

6

8

8

8

8

8

8

8

h3

Min.

3.7

3.7

3.7

3.5

3.5

3.5

3.5

3.5

3.5

4

4

4

4

4

4

4

n

Nominal

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.1

1.2

1.2

1.2

1.2

1.2

1.2

1.2

Max.

1.41

1.41

1.41

1.41

1.41

1.41

1.41

1.41

1.41

1.51

1.51

1.51

1.51

1.51

1.51

1.51

Min.

1.16

1.16

1.16

1.16

1.16

1.16

1.16

1.16

1.16

1.26

1.26

1.26

1.26

1.26

1.26

1.26

s2

Max.=Nominal

4.5

4.5

4.5

6

6

6

6

6

6

6 / 7

6 / 7

6 / 7

7

7

7

7

Min.

4.32

4.32

4.32

5.82

5.82

5.82

5.82

5.82

5.82

5.82 / 6.78

5.82 / 6.78

5.82 / 6.78

6.78

6.78

6.78

6.78

t

±0.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.6

1.6

1.6

1.6

1.6

1.6

1.6

 

Nominal Dimension

30~45

35~50

40~60

50~70

60~80

70~90

80~100

90~110

100~120

110~130

120~140

130~150

140~160

12~22

16~27

20~32

b1

±1

9

9

9

9

9

9

9

9

9

9

9

9

9

12

12

12

s

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

b2

Max.

14

14

14

14

14

14

14

14

14

14

14

14

14

20

20

20

h1

Max.

14

14

14

14

14

14

14

14

14

14

14

14

14

16

16

16

h2

±1

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

8

h3

Min.

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

n

Nominal

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

Max.

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

Min.

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

s2

Max.=Nominal

7

7

7

7

7

7

7

7

7

7

7

7

7

7 / 8

7 / 8

7 / 8

Min.

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

t

±0.3

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

  

Nominal Dimension

25~40

30~45

35~50

40~60

50~70

60~80

70~90

80~100

90~110

100~120

110~130

120~140

130~150

140~160

b1

±1

12

12

12

12

12

12

12

12

12

12

12

12

12

12

s

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

0.5~1.0

b2

Max.

20

20

20

20

20

20

20

20

20

20

20

20

20

20

h1

Max.

16

16

16

16

16

16

16

16

16

16

16

16

16

16

h2

±1

8

8

8

8

8

8

8

8

8

8

8

8

8

8

h3

Min.

4

4

4

4

4

4

4

4

4

4

4

4

4

4

n

Nominal

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

1.2

Max.

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

1.51

Min.

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

1.26

s2

Max.=Nominal

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

7 / 8

Min.

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

6.78 / 7.78

t

±0.3

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

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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.

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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