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Data with red represented to FINE thread.

Standard: ISO Metric (Coarse)

Nominal Thread (D)

Pitch

M2

0.40

(M2.5)

0.45

M3

0.50

(M3.5)

0.60

M4

0.70

(M4.5)

0.75

M5

0.80

M6

1.00

M8

1.25

(M9)

1.25

M10

1.50

(M11)

1.50

M12

1.75

(M14)

2.00

M16

2.00

(M18)

2.50

M20

2.50

(M22)

2.50

M24

3.00

(M27)

3.00

M30

3.50

(M33)

3.50

M36

4.00

(M39)

4.00

M42

4.50

(M45)

4.50

M48

5.00

(M52)

5.00

 

Standard: ISO Metric (Fine)

Nominal Thread (D)

Pitch

M8

1.00

M10

1.00

M10

1.25

M12

1.25

M12

1.50

(M14)

1.50

M16

1.50

(M18)

1.50

(M18)

2.00

M20

1.50

M20

2.00

(M22)

1.50

(M22)

2.00

M24

2.00

(M27)

2.00

M30

2.00

(M33)

2.00

M36

3.00

(M39)

3.00

M42

3.00

(M45)

3.00

M48

3.00

(M52)

4.00

 

Standard: UNC

Nominal Thread (D)

TPI

1/4’’

20

5/16’’

18

3/8’’

16

7/16’’

14

1/2’’

13

9/16’’

12

5/8’’

11

3/4’’

10

7/8’’

9

1’’

8

1-1/8’’

7

1-1/4’’

7

1-3/8’’

6

1-1/2’’

6

1-3/4’’

5

 

Standard: UNF

Nominal Thread (D)

TPI

1/4’’

28

5/16’’

24

3/8’’

24

7/16’’

20

1/2’’

20

9/16’’

18

5/8’’

18

3/4’’

16

7/8’’

14

1’’

12

1-1/8’’

12

1-1/4’’

12

1-3/8’’

12

1-1/2’’

12

 

Standard: BSW

Nominal Thread (D)

TPI

1/8’’

40

3/16’’

24

1/4’’

20

5/16’’

18

3/8’’

16

7/16’’

14

1/2’’

12

9/16’’

12

5/8’’

11

3/4’’

11

7/8’’

10

1’’

9

1-1/8’’

8

1-1/4’’

7

1-3/8’’

6

1-1/2’’

6

1-5/8’’

5

1-3/4’’

5

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