Destructive forces on the pulling and cutting

Destructive forces on the pulling (kN)
for carbon steel self-drilling fasteners C 1022

screw type

fastener

diameter

steel thickness (mm)

0,45

0,61

0,75

0,90

1,22

1,50

1,90

2,65

4,15

5,70

6,35

STARX 2

4,2

0,50

0,86

1,18

1,31

2,19

3,12

4,25

6,89

E 2, S 2

4,8

0,65

1,08

1,39

1,59

2,50

3,66

4,95

7,98

E 4, S 4

0,55

0,93

1,18

1,33

2,20

3,12

4,30

6,50

9,18

S 2

5,5

0,70

1,09

1,26

1,67

2,70

3,78

5,24

8,20

11,44

15,60

E 5, S 5

0,64

0,94

1,22

1,50

2,45

3,38

4,73

7,25

10,70

13,25

S 8

5,5

2,20

3,10

4,38

6,81

10,81

15,49

17,02

E12, S12, I12

2,17

3,11

4,05

6,78

9,81

16,45

17,67

S 2

6,3

0,92

2,46

1,90

2,49

3,55

5,11

S 6

0,61

1,03

1,29

1,53

2,70

3,89

5,08

8,25

10,68

20,15

22,18
Shear failure forces (kN)
for self-drilling screws made of C 1022 carbon steel

screw type

fastener
diameter

steel thickness (mm)

2 x 0,45

2 x 0,61

2 x 0,75

2 x 0,90

2 x 1,22

2 x 1,50

2 x 1,90

2 x 2,65

2 x 4,15

2 x 5,70

2 x 6,35

STARX 2

4,2

1,30

2,19

2,48

3,28

4,71

4,79

E 2, S 2

4,8

3,22

5,62

6,84

6,89

E 4, S 4

1,61

2,66

2,77

3,98

6,07

7,81

9,49

S 2

5,5

3,41

5,95

7,15

8,71

8,82

E 5, S 5

9,02

9,10

S 8

5,5

11,99

12,07

12,25

E12, S12, I12

2,26

3,77

3,92

5,50

7,81

S 2

6,3

4,05

6,39

9,20

11,27

11,55

12,32
Independent test results available upon request. Lumber for these tests is typical of the woods used in post frame construction. All lumber is constructiongrade with the exception of “economy fir” which is unrated. This lumber was not kiln dried. Tighter grain structure would provide a substantial increase in pullout values. Values with 1” penetration can vary from 240 lbs. to 1150 lbs., depending on wood density. We believe these are typical values found in field applications. These values are ultimate with no safety factors. Recommended minimum penetration is 1”, except for plywood.