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DIN 7500 (DE):2007 Hex Head Triangular Thread Forming Screw

DIN 7500 (DE):2007 Hex Head Triangular Thread Forming Screw adopts an external hex head and triangular thread-forming locking thread to meet the needs of joints requiring fast socket installation, higher clamping force, and assembly without pre-tapping.

The hex head supports higher applied torque, while the triangular thread can provide improved resistance to loosening as it forms engagement in the base material. 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 metal brackets, equipment frames, vehicle accessories, enclosure structures, and industrial mounting parts. Zinc plating, nickel plating, zinc-flake coatings, or stainless steel materials can be adjusted for the final application, balancing cost control, corrosion protection, and assembly consistency.

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Dimensions unit: inch 

Thread size d

M2

M2.5

M3

(M3.5)

M4

M5

M6

M8

M10

M12

P

Pitch

0.4

0.45

0.5

0.6

0.7

0.8

1

1.25

1.5

1.75

e

Class A

Min.

4.32

5.45

6.01

6.58

7.66

8.79

11.05

14.38

17.77

20.03

Class B

Min.

4.18

5.31

5.88

6.44

7.5

8.63

10.89

14.2

17.59

19.85

k

Class A

Max.

1.525

1.825

2.125

2.525

2.925

3.65

4.15

5.45

6.58

7.68

Min.

1.275

1.575

1.875

2.275

2.675

3.35

3.85

5.15

6.22

7.32

Class B

Max.

1.6

1.9

2.2

2.6

3

3.74

4.24

5.54

6.69

7.79

Min.

1.2

1.5

1.8

2.2

2.6

3.26

3.76

5.06

6.11

7.21

s

Max.= Nominal

4

5

5.5

6

7

8

10

13

16

18

Class A

Min.

3.82

4.82

5.32

5.82

6.78

7.78

9.78

12.73

15.73

17.73

Class B

Min.

3.7

4.7

5.2

5.7

6.64

7.64

9.64

12.57

15.57

17.57

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