Stainless Steel Washers

Table 1. Normal Diameter Metric Series, Normal / Light thicknesses



Thickness (mm)
Nominal Size of Bolt or Screw


M2

M2.5

M3

M4

M5

M6

M8

M10

M12

M16

M20

M24

M30

M36
Inside Diameter (mm)


Max.                         Min.
2.35

2.85

3.4

4.5

5.5

6.7

8.7

10.9

13.4

17.4

21.5

25.5

31.6

37.6
2.2

2.7

3.2

4.3

5.3

6.4

8.4

10.5

13

17

21

25

31

37
Outside Diameter (mm)

Max.                              Min.
5

6.5

7

9

10

12.5

17

21

24

30

37

44

56

66
4.7

6.2

6.7

8.7

9.7

12.1

16.6

20.5

23.5

29.5

36.2

43.2

55

66
Normal Range

Max.                      Min.
0.4

0.6

0.6

0.9

1.1

1.8

1.8

2.2

2.7

3.3

3.3

4.3

4.3

5.6
0.2

0.4

0.4

0.7

0.9

1.4

1.4

1.8

2.3

2.7

2.7

3.7

3.7

4.4
Light Range

Max.                         Min.
-

-

-

-

-

0.9

1.1

1.45

1.8

2.2

2.2

2.7

2.7

3.3
-

-

-

-

-

0.7

0.9

1.05

1.4

1.8

1.