Emkay Screw Supplies  01634 717256   

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                                  countersunk socket head screws

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                                                    Metric  BA  BSF  BSW  UNF  UNC    

 

Metric

size

length

C/sunk skt head screw

M3 

   8mm

0.19

C/sunk skt head screw

M3  

10mm

0.20

C/sunk skt head screw

M3  

12mm

0.23

C/sunk skt head screw

M3  

16mm

0.25

C/sunk skt head screw

M4  

   8mm

0.20

C/sunk skt head screw

M4  

12mm

0.24

C/sunk skt head screw

M4  

16mm

0.26

C/sunk skt head screw

M4  

20mm

0.28

C/sunk skt head screw

M4  

25mm

0.30

C/sunk skt head screw

M4  

30mm

0.33

C/sunk skt head screw

M5  

10mm

0.24

C/sunk skt head screw

M5 

20mm

0.30

C/sunk skt head screw

M5 

25mm

0.32

C/sunk skt head screw

M5

30mm

0.35

C/sunk skt head screw

M5

35mm

0.38

C/sunk skt head screw

M5

40mm

0.42

C/sunk skt head screw

M6

10mm

0.25

C/sunk skt head screw

M6

12mm

0.27

C/sunk skt head screw

M6

16mm

0.30

C/sunk skt head screw

M6

20mm

0.34

C/sunk skt head screw

M6

25mm

0.36

C/sunk skt head screw

M6

30mm

0.38

C/sunk skt head screw

M6

35mm

0.42

C/sunk skt head screw

M6

40mm

0.48

C/sunk skt head screw

M6

50mm

0.59

C/sunk skt head screw

M6

60mm

0.74

C/sunk skt head screw

M8

12mm

0.30

C/sunk skt head screw

M8

16mm

0.36

C/sunk skt head screw

M8

20mm

0.41

C/sunk skt head screw

M8

25mm

0.45

C/sunk skt head screw

M8

30mm

0.50

C/sunk skt head screw

M8

35mm

0.55

C/sunk skt head screw

M8 

40mm

0.60

C/sunk skt head screw

M8

50mm

0.70

C/sunk skt head screw

M10

50mm

0.85

BA

 

 

 

C/sunk skt head screw

6 BA

       5/16"             0.40

C/sunk skt head screw

4 BA

        1/4"             0.43

C/sunk skt head screw

4 BA

  3/4"

0.55

C/sunk skt head screw

2 BA

 5/16"

0.51

C/sunk skt head screw

2 BA

  3/8"

0.54

C/sunk skt head screw

2 BA

        1/2"

0.57

C/sunk skt head screw

2 BA

   5/8"

0.60

C/sunk skt head screw

2 BA

         3/4"

0.62

C/sunk skt head screw

2 BA

1"

0.63

C/sunk skt head screw

2 BA

1 1/2"

0.89

BSF

 

 

 

C/sunk skt head screw

1/4" BSF

1/2"

0.39

C/sunk skt head screw

1/4" BSF

  3/4"

         0.43

C/sunk skt head screw

1/4" BSF

1"

0.45

C/sunk skt head screw

5/16" BSF

  3/4"

0.50

C/sunk skt head screw

5/16" BSF

1"

0.61

C/sunk skt head screw

5/16" BSF

1 1/4"

0.67

C/sunk skt head screw

5/16" BSF

1 1/2"

0.73

C/sunk skt head screw

5/16" BSF

2"

0.85

C/sunk skt head screw

3/8" BSF

1"

0.65

C/sunk skt head screw

1/2" BSF

1"

0.85

BSW

 

 

 

C/sunk skt head screw

3/16" BSW

1/2"

0.35

C/sunk skt head screw

3/16" BSW

1"

0.44

C/sunk skt head screw

1/4" BSW

5/8"

0.40

C/sunk skt head screw

1/4" BSW

1"

0.45

C/sunk skt head screw

1/4" BSW

2"

0.74

C/sunk skt head screw

5/16" BSW

3/4"

0.50

C/sunk skt head screw

5/16" BSW

1 1/2"

0.73

C/sunk skt head screw

3/8" BSW

3/4"

0.54

C/sunk skt head screw

1/2" BSW

3/4"

0.74

C/sunk skt head screw

1/2" BSW

1"

0.85

C/sunk skt head screw

1/2" BSW

2"

1.19

UNF

 

 

 

C/sunk skt head screw

10/32 UNF

    3/8"

0.31

C/sunk skt head screw

10/32 UNF

    1/2"

0.35

C/sunk skt head screw

10/32 UNF

    3/4"

0.43

C/sunk skt head screw

10/32 UNF

1"

0.51

C/sunk skt head screw

10/32 UNF

1 1/4"

0.59

C/sunk skt head screw

1/4" UNF

    1/2"

0.43

C/sunk skt head screw

1/4" UNF

    5/8"

0.44

C/sunk skt head screw

1/4" UNF

    3/4"

0.45

C/sunk skt head screw

1/4" UNF

1"

0.49

C/sunk skt head screw

5/16" UNF

    3/4"

0.58

C/sunk skt head screw

3/8" UNF

    3/4"

0.66

C/sunk skt head screw

3/8" UNF

1 1/2"

0.98

UNC

 

 

 

C/sunk skt head screw

4/40 UNC

    1/4"

0.20

C/sunk skt head screw

6/32 UNC

    1/4"

0.25

C/sunk skt head screw

8/32 UNC

1"

0.39

C/sunk skt head screw

10/24 UNC

    3/8"

0.31

C/sunk skt head screw

10/24 UNC

    1/2"

0.35

C/sunk skt head screw

10/24 UNC

    3/4"

0.43

C/sunk skt head screw

1/4" UNC

    1/2"

0.43

C/sunk skt head screw

1/4" UNC

    3/4"

0.44

C/sunk skt head screw

1/4" UNC

1"

0.49

C/sunk skt head screw

1/4" UNC

1 1/4"

0.54

C/sunk skt head screw

1/4" UNC

2"

0.68

C/sunk skt head screw

5/16" UNC

1"

0.66

C/sunk skt head screw

5/16" UNC

1 1/2"

0.76

C/sunk skt head screw

3/8" UNC

    3/4"

0.66

C/sunk skt head screw

3/8" UNC

1"

0.69

C/sunk skt head screw

3/8" UNC

1 1/4"

0.79

C/sunk skt head screw

3/8" UNC

1 1/2"

1.00