, or

Spanner size (mm)

Spanner Size (")

ISO (M)

   BA   

Unified

2.97

-

-

10

-

3.86

-

-

8

-

4

-

M2

-

-

4.9

-

-

6

-

5

-

M2.5

-

-

5.5

-

M3

-

-

6

-

M3.5

-

-

6.3

-

-

4

-

Spanner size (mm)

Spanner Size (")

ISO

BA

Unified

-

1/4"

-

-

4

7

-

M4

-

-

-

5/16"

-

-

6

8

-

M5

-

-

8.23

-

-

2

-

9

-

M6

-

-

-

3/8"

-

-

10

10

-

M6

-

-

Spanner size (mm)

Spanner Size (")

ISO (M)

BA

Unified

10.49

-

-

0

-

11

-

M7

-

-

-

7/16"

-

-

1/4"

12

-

-

-

-

-

1/2"

-

-

5/16"

13

-

M8

-

-

14

-

-

-

-

-

9/16"

-

-

3/8"

Spanner size (mm)

Spanner Size (")

ISO (M)

BA

Unified

15

-

M10

-

-

-

5/8"

-

-

3/8"

16

-

M10

-

-

17

-

M10

-

-

-

11/16"

-

-

7/16"

18

-

M12

-

-

19

-

M12

-

-

-

3/4"

-

-

1/2"

Spanner size (mm)

Spanner Size (")

ISO (M)

BA

Unified

-

13/16"

-

-

9/16"

-

7/8"

-

-

9/16"

-

15/16"

-

-

5/8"

24

-

M16

-

-

The information contained upon this page is supplied in good faith, and to the best of my knowledge is accurate.
However, I accept no responsibility for damage or injury, however caused, due to the use of this data.