2458

2459

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Screw Plugs

Screw Plugs

MSW

MSWS Short Type

B

L

B

L

t

xP

M

xP

M

Approx. 120°

B

L

B

L

t

M

M

H

B

L

1.5

xP

M

a

1.5

C

t

Detailed Diagram

(

)

Type

Material

Hardness

Surface Treatment

MSW

4137 Alloy Steel (M2.5–10)

1045 Carbon Steel Equivalent (M12–45)

34–43

HRC min.

Black Anodize

(JIS B 0207 Class 2)

MSWS Short Type

1045 Carbon Steel

Equivalent

MSWA Through Hole Type

MSWAS Through Hole / Short

MSWZ With Washer Type

33–38

HRC min.

MSWZS With Washer / Short

B

L

B

L

t

xP

M

xP

M

Approx. 120°

B

L

B

L

t

M

M

H

B

L

1.5

xP

M

a

1.5

C

t

Detailed Diagram

Part Number

dz max.

MSW3

1.4

MSW4

2.0

MSW5

2.5

Standard Type

!

*The tip of MSW3 / 4 / 5 is a cup point.

M x P

L

B

t

Part Number

Type

M

2.5

0.45

3

1.3

1.2

MSW

2.5

3

0.5

3

1.5

3*

4

0.7

4

2

1.5

4*

5

0.8

5

2.5

2

5*

6

1.0

6

3

3.5

6

8

1.25

8

4

5

8

10

1.5

10

5

6

10

12

1.5

Fine

Thread

6

5.5

12

14

14

16

8

16

18

10

18

20

12

6

20

22

12

22

24

14

24

25

25

26

26

27

27

28

28

30

17

30

33

33

36

18

10

36

38

38

40

40

42

42

45

45

M x P

L

B

Part Number

Type

M

8

1.25

8

4

MSWA

Through Hole

8

10

1.5

10

5

10

12

1.5

Fine Thread

6

12

14

14

16

8

16

18

10

18

20

12

20

22

12

22

24

14

24

25

25

26

26

27

27

28

28

30

17

30

33

33

M x P

L

B

h

t

C

Part Number

Type

M

6

1.0

8

3

9

5

2.5

MSWZ

With Washer

6

8

1.25

10

4

11

8

10

1.5

12

5

13

10

12

1.5

Fine

Thread

6

15

12

14

17

14

16

8

19

16

18

10

21

18

20

15

23

20

22

12

25

22

24

14

27

24

25

28

25

26

29

26

27

30

27

28

31

28

30

17

33

30

33

36

33

M x P

L

B

Part Number

Type

M-L

8

1.25

6

4

MSWAS

Through Hole/

Short

8-6

10

1.5

5

10-6

12

1.5

Fine Thread

6

12-6

14

14-6

16

8

16-6

18

10

18-6

20

8

20-8

22

12

22-8

24

14

24-8

25

25-8

26

26-8

27

27-8

28

28-8

30

17

30-8

33

33-8

Short Type

M x P

L

B

t

Part Number

Type

M-L

8

1.25

6

4

3

MSWS

Short

8-6

10

1.5

5

10-6

12

1.5

Fine Thread

6

12-6

14

14-6

16

8

16-6

18

10

18-6

20

8

4

20-8

22

12

22-8

24

14

24-8

25

25-8

26

26-8

27

27-8

28

28-8

30

17

30-8

33

33-8

!

Short Type has shorter L dimension and fewer threads, compared with the standard type (MSW / MSWA /

MSWZ). Before use, check the load applied to the screw plug and the material of the plate to be tapped.

M x P

L

B

h

t

C

Part Number

Type

M-L

10

1.5

10

5

13

4

2.0

MSWZS

With Washer/

Short

10-10

12

1.5

Fine

Thread

6

15

12-10

14

17

14-10

16

8

19

16-10

18

10

21

18-10

20

23

20-10

22

12

25

22-10

24

14

27

24-10

25

28

25-10

26

29

26-10

27

30

27-10

28

31

28-10

30

12

17

33

5

30-12

33

36

33-12

Part Number

MSW18

MSWS18 - 6

MSWA Through Hole Type

MSWAS Through Hole / Short

B

L

B

L

t

xP

M

xP

M

Approx. 120°

B

L

B

L

t

M

M

H

B

L

1.5

xP

M

a

1.5

C

t

Detailed Diagram

MSWZ With Washer Type

MSWZS With Washer / Short

MSW: Dimple Shape and Dimension

B

L

B

L

t

xP

M

xP

M

Approx. 120°

B

L

B

L

t

M

M

H

B

L

1.5

xP

M

a

1.5

C

t

Detailed Diagram

M6 / 8

a=0.3

M10–33

a=0.5

!

!

Cost-saving box package is available when large quantity is required.

Retaining Rings

External C-Rings / E-Rings

Part Number

Retaining Ring

Reference

Applicable Shaft (Reference)

Type

No.

d3

t

b

(Approx.)

a

(Approx.)

d0

(Min.)

d4

d1

d2

m

n

(Min.)

Tolerance

Tolerance

Tolerance

Tolerance

STWN

3

2.7

+0.04

-0.15

0.25

±0.025

0.5

1.7

0.7

7

3

2.85

0

- 0.04

0.35

+ 0.10

0

0.3

4

3.7

0.4

±0.03

0.9

2.2

0.8

9

4

3.8

0.5

5

4.7

0.6

±0.04

1.1

2.4

10.5

5

4.8

0.7

6

5.6

+0.06

-0.2

0.7

1.3

2.8

1

12

6

5.7

0.8

0.5

7

6.5

0.8

1.4

3

14

7

6.7

0

- 0.06

0.9

8

7.4

1.6

3

15

8

7.6

0.6

STWS

Stainless Steel

4

3.6

±0.1

0.25

±0.03

0.7

1.4

0.7

9

4

3.7

±0.06

0.3

+ 0.10

0

1.0

5

4.5

0.4

±0.04

10.5

5

4.7

0.45

1.5

6

5.5

0.8

2.0

12

6

5.7

7

6.3

0.65

0.9

1

14

7

6.5

0.7

8

7.1

1.0

2.2

15

8

7.4

STWN

STWS

Stainless Steel

10

9.3

±0.15

1

±0.05

1.8

3

1.2

17

10

9.6

0

- 0.09

1.15

+0.14

0

1.5

11

10.2

2

3.1

18

11

10.5

0

- 0.11

12

11.1

±0.18

2.1

3.2

1.5

19

12

11.5

13

12

3.3

20

13

12.4

14

12.9

2.2

3.4

1.7

22

14

13.4

15

13.8

3.5

23

15

14.3

16

14.7

3.6

24

16

15.2

17

15.7

3.7

25

17

16.2

18

16.5

1.2

±0.06

2.6

3.8

26

18

17

1.35

19

17.5

2.7

2

27

19

18

20

18.5

±0.2

3.9

28

20

19

0

- 0.21

21

19.5

4

30

21

20

22

20.5

4.1

31

22

21

23

21.4

2.9

4.5

32.5

23

22

24

22.2

3.1

4.2

33

24

22.9

25

23.2

4.3

34

25

23.9

26

24.2

4.4

35

26

24.9

28

25.9

1.5

4.6

38

28

26.6

1.65

29

26.9

3.5

4.7

39

29

27.6

30

27.9

4.8

40

30

28.6

32

29.6

5

2.5

43

32

30.3

0

- 0.25

35

32.2

±0.25

4

5.4

46

35

33

40

37

±0.4

1.75

±0.07

4.5

5.8

53

40

38

1.9

2

45

41.5

4.8

6.3

58

45

42.5

50

45.8

2

5

6.7

64

50

47

2.2

52

47.8

6.8

66

52

49

60

55.8

±0.45

5.5

7.2

75

60

57

0

- 0.3

80

74.5

2.5

±0.08

7.4

8.2

97

80

76.5

2.7

2.5

Type

Material

Hardness

STWN

Spring Steel

44–53 HRC min.

STWS

304 Stainless Steel-CSP

36–44 HRC min.

Part Number

Retaining Ring

Applicable Shaft (Reference)

Type

No.

d

D

H

t

d1 Class

d2

m

n

(Min.)

Tolerance

Tolerance

Tolerance

Tolerance More than

or Less

Tolerance

Tolerance

NETW

NETWS

Stainless Steel

1.2

1.2

0

- 0.09

3

±0.1

1

0

- 0.25

0.3

±0.025

1.4

2

1.2

+ 0.06

0

0.4

+ 0.05

0

0.6

1.5

1.5

4

±0.2

1.3

0.4

±0.03

2

2.5

1.5

0.5

0.8

2

2

5

1.7

2.5

3.2

2

1

2.5

2.5

6

2.1

3.2

4

2.5

3

3

7

2.6

0.6

±0.04

4

5

3

0.7

+ 0.1

0

4

4

0

- 0.12

9

3.5

0

- 0.30

5

7

4

+ 0.075

0

1.2

5

5

11

4.3

6

8

5

6

6

12

5.2

0.8

7

9

6

0.9

7

7

0

- 0.15

14

6.1

0

- 0.35

8

11

7

+ 0.09

0

1.5

8

8

16

6.9

9

12

8

1.8

9

9

18

7.8

10

14

9

2

Part Number

STWS6

NETW9

NETW

NETWS Stainless Steel

d

H

D

t

n

m

Type

Material

Hardness

Surface Treatment

NETW

Spring Steel

44–53 HRC min. Trivalent Chromate Plating

NETWS 304 Stainless Steel-CSP 37–46 HRC min.

—

Applicable Shaft

No.8 or Less

d 3

t

n

m

STWN

STWS Stainless Steel

Applicable Shaft

d4: Maximum outer diameter when retaining ring is fitted on d1

(Clearance outer diameter)

Retaining Rings –

External C-Ring

Retaining Rings –

E-Ring