Self drilling Screws Hex Washer Head DIN7504K 1022(Carbon Steel)

Thread Size

ST2.9

ST3.5

ST3.9

ST4.2

ST4.8

ST5.5

ST6.3

P

1.1

1.3

1.3

1.4

1.6

1.8

1.8

a(max)

1.1

1.3

1.3

1.4

1.6

1.8

1.8

c(min)

0.4

0.6

0.6

0.8

0.9

1

1

dc(max)

6.3

8.3

8.3

8.8

10.5

11

13.5

dc(min)

5.8

7.6

7.6

8.1

9.8

10

12.2

e(min)

4.28

5.96

5.96

7.59

8.71

8.71

10.95

k(max)

2.8

3.4

3.4

4.1

4.3

5.4

5.9

k(min)

2.5

3

3

3.6

3.8

4.8

5.3

kw(min)

1.3

1.5

1.5

1.8

2.2

2.7

3.1

r(max)

0.4

0.5

0.5

0.6

0.7

0.8

0.9

s(max)

4

5.5

5.5

7

8

8

10

s(min)

3.82

5.32

5.32

6.78

7.78

7.78

9.78

dp

2.3

2.8

3.1

3.6

4.1

4.8

5.8

 Drilling range

(thickness)

0.7~1.9

0.7~2.25

0.7~2.4

1.75~3

1.75~4.4

1.75~5.25

2~6

GB

ISO

DIN

UNI

GB /T 15856.5

ISO 15480

DIN EN ISO 15480

UNI 8117

Some of the above standards may be approximate equivalents; in case of disagreement, the original standard shall prevail.