Thread code

Type

Shank code

Thread code

Sheet thickness min-max.

A

±0.1

B

±0.1

G

±0.4

T1±0.2

T2

Nom

E ±0.25

unified

Metric

Unified

Metric

.122-40

(#4-40)

M3×0.5

PF

41

440

M3

0.8-1.5

1.0

0.4

4

12.1

11.3

10.5

5.7

13.8

8.8

17.9

4.7

12.8

42

1.5-2.5

1.8

0.4

6.4

14.5

7.9

16

9.5

17.6

.138-32

(#6-32)

M3.5 ×0.6

PF

41

632

M3.5

1.5-3.2

1.8

0.4

6

16.4

15.3

11.5

7.6

18

9.2

19.6

10.8

21.2

42

3.2-4.8

3.4

1.6

7.6

18

9.2

19.6

10.8

21.2

.164-32

(#8-32)

M4×0.7

PF

41

832

M4

1.5-3.2

1.8

0.4

6.4

16.9

15.6

13

8

18.5

9.5

20

11.1

21.6

42

3.2-4.8

3.4

1.6

8

18.5

9.5

20

11.1

21.6

.190-32

(#10-32)

M5×0.8

PF

41

032

M5

1.5-3.2

1.8

0.4

6.4

16.9

15.6

13

8

18.5

9.5

20

11.1

21.6

42

3.2-4.8

3.4

1.6

8

18.5

9.5

20

11.1

21.6

.250-20

(1/4-20)

M6×1

PF

41

0420

M6

1.5-3.2

1.8

0.4

7.8

20.5

19.3

14.7

9.4

22.1

11

23.7

12.6

25.3

42

3.2-4.8

3.4

1.6

9.4

22.1

11

23.7

12.6

25.3