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Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 9:00 24/11/2024 to 7:00 (SGT) 25/11/2024. We apologize for the inconvenience.
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Washers（Type：Toothed Washer (Toothed Lock Washer)）

Metal Washers
We have a lineup of nearly all washers circulating in the market, including square or wavy types, as well as flat (round) washers and spring washers.
They are mainly available in small boxes and packs, but we sell many items individually. For customers who are price sensitive, purchasing in small boxes is recommended.
Contact us if you cannot find the desired size.
[Materials]
Iron (steel SCM), stainless steel (SUS304, SUS410, SUS316L), titanium, brass, and many others
[Surface Processing]
None, ferrosoferric oxide coating, electroless nickel plating, trivalent chromate, trivalent black, trivalent white, unichrome plating, chromate plating, chrome plating, nickel plating, anodized, polished, painted, and others
[Nominal Screw Diameter] M (mm), imperial (inch), others
[Thickness] 0.1 to 30 mm

10 items

: 30; 45; 60

Days to Ship	All Same day 3 Day(s) or Less 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less 11 Day(s) or Less

Toothed Lock Washer, Externally Toothed Type

OCHIAI

[Type] Toothed washer (star washer)
[Sales unit] Box/package
[Materials] S65C, phosphor bronze
[Inner diameter d (mm)] 2.2 2.5 3.2 3.7 4.3 5.3 6.4 8.4 9.8 10.5 12.5 14.5 16.5 19 19.6 21 25 26
[Nominal Thread Designation (M)] 2 2.3 3 3.5 4 5 6 8 10 12 14 16 18 20 24
[Nominal Thread Designation (inch)] 3/8, 3/4, 1
[Thickness t (mm)] 0.3 0.45 0.6 0.8 0.9 1 1.2 1.4 1.6
[Outer diameter D (mm)] 4.8 5.3 6.5 7.5 8.5 10 11 15 17.5 18 19.5 23 26 29 32 38 41

Standard Price:	SGD 0.06-
Days to Ship:	Same day or more

Toothed Washer, Inside and Outside Tooth Profile

OUMI OFT

The inside of the washer is furnished with teeth. These teeth embed into the workpiece, helping to prevent further rotation. By combining with a flat washer or similar, rattling and loosening should also be avoided.

Standard Price:	SGD 0.13-
Days to Ship:	4 Day(s) or more

Specialized Inner Toothed Washer

OCHIAI

[Materials] Steel, Phosphor bronze
[Inner diameter d (mm)] 2.7 3.2 3.7 4.3 4.8 5.3 6.4 7.4 8.4 10.5 12.5 14.5 16.5 19 21 23 25
[Nominal Thread (M)] 2.5 3 3.5 4 4.5 5 6 7 8 10 12 14 16 18 20 22 24
[Thickness t (mm)] 0.3 0.45 0.5 0.6 0.8 0.9 1 1.2 1.4 1.6
[Materials]Steel S65C
[Outer diameter D (mm)] 5.7 6.5 7.5 8.5 9.5 10

Standard Price:	SGD 0.11-
Days to Ship:	4 Day(s) or more

Externally Toothed Washer

Externally Toothed Washer【24-210 Pieces Per Package】

TRUSCO NAKAYAMA

● Has a higher clamping effect than internally toothed washers.

Standard Price:	SGD 11.68-
Days to Ship:	9 Day(s)

JIS Toothed Lock Washer

JIS Toothed Lock Washer【1-60,000 Pieces Per Package】

HEIWA HATSUJYO

[Applications]
·Internal Teeth Profile: It is used in inconvenient places such as set screws where teeth appear.
·Outside Tooth Profile: It is used in places where more loosening prevention than the internal tooth profile is required.

Standard Price:	SGD 0.03-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Inner/External Toothed Washer

OCHIAI

[Type] Toothed washer, chrysanthemum-shaped
[Materials] Steel
[Sales unit] Box/package
[Materials] Steel S65C
[Inner diameter d (mm)] 3.2 4.3 5.3 6.4 8.4 10.5
[Nominal Thread (M)] 3 4 5 6 8 10
[Thickness t (mm)] 0.45 0.6 0.8 0.9
[Outer diameter D (mm)] 6.5 8.5 10 11 15 18

Standard Price:	SGD 0.14-
	Special Price
Days to Ship:	Same day or more

Internally Toothed Washer

Internally Toothed Washer【35-230 Pieces Per Package】

TRUSCO NAKAYAMA

● Designed to prevent screws from loosening and to protect the outer part from damage.

Standard Price:	SGD 11.69-
Days to Ship:	9 Day(s)

Toothed Washer, Dished Type

Toothed Washer, Dished Type【1-20,000 Pieces Per Package】

OUMI OFT

Suitable for use in places where heavy loads are required. The number of teeth is for reference only.

Standard Price:	SGD 0.11-
Days to Ship:	4 Day(s) or more

External Toothed Washer

TAIYO STAINLESS SPRING

Tooth protruding in outside diameter side are in combination with things like flat washers, which can prevent rattling and loosening of the screw.

Volume Discount

Standard Price:	SGD 0.03-
Days to Ship:	3 Day(s) or more

Folder Toothed Washer, Outside Tooth Profile

OCHIAI

[Type] Toothed washer, chrysanthemum shape
[Sales unit] Box/package
[Inner diameter d (mm)] 3.2 4.3 5.3 6.4 8.4 10.5
[Nominal Thread (M)] 3 4 5 6 8 10
[Thickness t (mm)] 0.45 0.6 0.8 0.9
[Materials]Steel, S65C
[Surface treatment](Details) Phosphate coating
[Outer diameter D (mm)] 6.5 8.5 10 11 15 18

Volume Discount

Standard Price:	SGD 0.06
Days to Ship:	4 Day(s) or more


Brand
Product Series
Days to Ship
Material
Surface Treatment
Inner Dia. d(mm)
I.D. d(inch)
Nominal of Thread (M)
Outer Diameter D(inch)
Type
Type (Application)
Sales Unit
Thickness t(mm)
Thickness t(inch)
Type Spring Washers
Material: Stainless Steel
Surface Treatment (Detailed)
Nominal of Thread (inch)
Material Steel
Type Toothed Washer

						On Sale Till 31/03/2025
Brand	OCHIAI	OUMI OFT	OCHIAI	TRUSCO NAKAYAMA	HEIWA HATSUJYO	OCHIAI	TRUSCO NAKAYAMA	OUMI OFT	TAIYO STAINLESS SPRING	OCHIAI
Product Series	Toothed Lock Washer, Externally Toothed Type	Toothed Washer, Inside and Outside Tooth Profile	Specialized Inner Toothed Washer	Externally Toothed Washer【24-210 Pieces Per Package】	JIS Toothed Lock Washer【1-60,000 Pieces Per Package】	Inner/External Toothed Washer	Internally Toothed Washer【35-230 Pieces Per Package】	Toothed Washer, Dished Type【1-20,000 Pieces Per Package】	External Toothed Washer	Folder Toothed Washer, Outside Tooth Profile
Days to Ship	Same day or more	4 Day(s) or more	4 Day(s) or more	9 Day(s)	4 Day(s) or more	Same day or more	9 Day(s)	4 Day(s) or more	3 Day(s) or more	4 Day(s) or more
Material	Steel	Steel	Steel	Steel	Steel / Phosphor Bronze	Steel	Steel	Steel	Steel / Stainless Steel	Steel
Surface Treatment	-	Trivalent Chromate	-	Trivalent Chromate	Trivalent Chromate / Nickel Plating / Temper Color	-	Trivalent Chromate	Trivalent Chromate	Not Provided / Trivalent Chromate	Parkerizing
Inner Dia. d(mm)	2.2 ～ 25	4.3 ～ 16.5	9.1 ～ 13	3.2 ～ 16.5	2.2 ～ 31	3.2 ～ 10.5	3.2 ～ 16.5	3.2 ～ 8.4	3.2 ～ 4.3	3.2
I.D. d(inch)	-	-	-	-	-	-	-	-	-	-
Nominal of Thread (M)	2 ～ 24	4 ～ 16	-	3 ～ 16	2 ～ 30	3 ～ 10	3 ～ 16	3 ～ 8	3 ～ 4	3
Outer Diameter D(inch)	-	-	-	-	-	-	-	-	-	-
Type	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)	Toothed Washer (Toothed Lock Washer)
Type (Application)	-	Spring Washer	-	Washer with Threadlocker Adhesive	Washer with Threadlocker Adhesive	-	Washer with Threadlocker Adhesive	Spring Washer	Washer with Threadlocker Adhesive	-
Sales Unit	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)
Thickness t(mm)	0.3 ～ 1.6	0.6 ～ 1.4	-	0.45 ～ 1.2	0.3 ～ 1.6	0.45 ～ 0.9	0.45 ～ 1.2	0.4 ～ 0.6	0.45	0.45
Thickness t(inch)	-	-	-	-	-	-	-	-	-	-
Type Spring Washers	-	-	-	-	-	-	-	-	-	-
Material: Stainless Steel	-	-	-	-	-	-	-	-	SUS304	-
Surface Treatment (Detailed)	-	Trivalent Chromate	-	Trivalent Chromate	Temper Color / Not Provided / Trivalent Chromate	-	Trivalent Chromate	Trivalent Chromate	Not Provided / Trivalent Chromate	Parkerizing
Nominal of Thread (inch)	-	-	-	-	1/2 ～ 3/8	-	-	-	-	-
Material Steel	S65C	S50C	S65C	S65C	S50C	S65C	S65C	S50C	Spring Steel	S65C
Type Toothed Washer	-	Internal External Teeth Type	-	External Teeth Type	Internal Teeth Type / External Teeth Type	-	Internal Teeth Type	Star	External Teeth Type	External Teeth Type

Configure

Specification/Dimensions

Material
- Steel
- Stainless Steel
- Titanium Class 2
- Aluminum
- Brass
- Phosphor Bronze
- Titanium Class 1
- Nickel Base Alloy
Clear

Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Chromate Plating
- Nickel Plating
- Chrome Plating
- Parkerizing
- Anodize
- Dacrotizing
- Polishing
- Painting, Coating
- Silver/Copper/Tin Plating
- Temper Color
- Passivated
Clear

Inner Dia. d(mm)
0.114

0.125

0.141

0.156

0.167

0.172

0.193

0.203

0.252

0.281

0.314

0.344

0.377

0.391

1.05

1.1

1.3

1.5

1.7

1.75

1.8

2.1

2.2

2.25

2.3

2.35

2.4

2.5

2.6

2.7

2.8

2.9

3

3.1

3.15

3.2

3.3

3.4

3.5

3.55

3.6

3.7

3.8

3.9

4

4.1

4.2

4.25

4.3

4.4

4.5

4.7

4.8

5

5.1

5.2

5.25

5.3

5.36

5.4

5.45

5.5

5.8

6

6.1

6.2

6.3

6.4

6.5

6.6

6.8

7

7.1

7.2

7.4

7.5

7.8

8

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

9

9.1

9.3

9.4

9.6

9.8

10

10.2

10.3

10.5

10.6

10.7

10.8

11

11.2

11.4

11.6

11.8

12

12.2

12.5

12.6

12.7

13

13.2

13.3

13.5

13.8

14

14.2

14.3

14.5

14.6

15

15.2

15.5

15.8

15.9

16

16.2

16.5

16.7

16.9

17

17.5

17.7

17.8

18

18.2

18.3

18.7

18.8

18.9

19

19.5

19.7

19.8

20

20.2

20.7

20.9

21

21.4

21.5

21.7

21.75

22

22.1

22.5

22.9

23

23.2

23.4

23.5

23.75

24

24.5

24.75

25

25.2

25.3

25.4

25.5

26

26.1

26.4

26.6

26.75

27

27.5

27.75

27.9

28

28.2

28.4

28.5

29

29.3

29.75

29.8

30

30.1

30.4

30.5

31

31.2

31.4

31.5

31.9

32

32.5

33

33.5

33.7

33.9

34

34.3

34.4

34.5

35

35.75

35.8

36

36.5

37

37.4

37.5

37.75

38

38.5

39

39.5

39.8

40

40.4

40.5

40.6

41

41.7

42

42.5

43

43.2

44

45

45.8

46

47

47.2

47.3

47.5

48

49

49.6

50

51

51.4

51.5

51.8

52

53

53.6

54

54.3

55

56

57

57.3

58

59.1

61.3

61.9

62

63.1

64.2

65

66

67.1

69

69.5

70

71.1

74

75

75.1

78

79.1

79.3

79.7

83.1

87.5

88.9

95.8

99

108.3

112.4
Drawing

Clear

I.D. d(inch)
0.109

0.141

0.148

0.227

0.291

0.355

0.400

0.416

0.450

0.512

0.573

0.827

0.894

0.952

1.077

1.202

1.327

1.640
Drawing

Clear

Nominal of Thread (M)
0.5

1

1.2

1.4

1.6

1.7

2

2.3

2.5

2.6

3

3.5

4

4.5

5

5.1

6

7

8

8.5

9

10

11

12

13

13.5

14

14.5

15

16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

33

34

36

37

38

39

41

42

43

44

45

45.1

45.2

45.3

46

47

48

50

51

52

54

55

55.1

55.2

55.3

56

60

63

64

65.1

65.2

65.3

65.5

66

68

70

70.2

72

76

80

80.3

85

85.2

85.3

85.6

90

93.2

95

98.3

105

105.1

105.2

105.3

110

110.3

110.4

110.5

110.6

115

120

125

125.1

125.2

125.4

125.5

130

130.2

135.2

135.3

135.4

135.5

135.6

140.3

140.4

145.4

145.5

150.2

150.6

170.2

170.3

170.4

170.5

170.6

180.4

180.5

180.6

210.3

210.4

210.5

210.6

220.5

230.5

235.5

240.5

240.6

250.3

255.6

260.4

260.5

285.4

330.6
Clear

Outer Diameter D(inch)
0.25

0.270

0.377

0.645

0.698

0.760

0.776

0.869

0.885

1.260

1.459

1.770

2.020

2.250

2.520

2.770

3.270
Drawing

Clear

Type
- Flat Washer
- Spring Washer
- Toothed Washer (Toothed Lock Washer)
- Rosette Washer
- Tab Washer - One-Tabbed / Two-Tabbed
- Nord-Lock Washer
- Tapered Washer
- Spherical Washer
- Ornamental Washer for Ornamental Screws
- Hooked Washer for Jig
- Split Washer for Jig
- Square Washer
- Flat Washer with Cover
- Seal Washer
- Pawl Washer
- Washer for Corrugated Sheet
- Fall Prevention and loosening Prevention Spring
Images

Clear

Type (Application)
- Flat Washer
- Spring Washer
- Special Shaped Washer
- Washer with Threadlocker Adhesive
- Washer for Fluid
Clear

Sales Unit
- Low Quantity (Available beginning with 1 pc.)
- Box, Pkg.
Clear

Thickness t(mm)
0.031

0.05

0.059

0.1

0.15

0.2

0.25

0.29

0.3

0.4

0.45

0.5

0.55

0.6

0.7

0.8

0.9

1

1.1

1.2

1.25

1.3

1.4

1.5

1.6

1.75

1.8

1.9

2

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

3

3.2

3.3

3.4

3.45

3.5

3.55

3.6

3.7

3.8

3.9

4

4.1

4.2

4.3

4.5

4.6

4.7

4.8

5

5.1

5.2

5.3

5.4

5.5

5.6

5.8

5.9

6

6.2

6.3

6.4

6.6

6.8

7

7.1

7.2

7.5

7.9

8

8.2

8.3

8.7

9

9.1

9.3

9.5

10

11

11.1

11.2

12

14

15

16

17

18

21

22

23

27

30

32

45
Drawing

Clear

Thickness t(inch)
0.031

0.042

0.044

0.045

0.055

0.056

0.067

0.073

0.088

0.109

0.115

0.125

0.135

0.219
Drawing

Clear

Type Spring Washers
- Standard
- Disc Spring
- Wave
- Serrated Conical Disc Spring
- Bent
Details

Clear

Material: Stainless Steel
254SMO

SUS302

SUS303

SUS304

SUS310S

SUS316

SUS316L

SUS329J4L

Stainless Steel
Clear

Surface Treatment (Detailed)
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Parkerizing
- Black Anodize
- Dacrotizing
- Barrel, Passivated
- Special Chemical Grinding
- GeoMet Coating
- Baked Paint
- Seizure-Against Coating
- Copper Plating
- Tin Plating
- Lafre
- Black Paint
- Temper Color
- Passivated
Clear

Nominal of Thread (inch)
1

1 1/2

1 1/4

1 1/8

1/2

1 3/8

1/4

2

No. 2

3/4

3/8

No. 4

5/8

5/16

No. 6

7/8

7/16

No. 8

9/16

No. 10

No. 12
Clear

Material Steel
SUM22L

S25C

S45C

S50C

S55C

S65C

SS400

Carbon Steel

SCM Steel

SPCC

SPHC

SWRH

Spring Steel
Clear

Type Toothed Washer
- Internal Teeth Type
- External Teeth Type
- Star
- Internal External Teeth Type
Images

Clear

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Washers（Type：Toothed Washer (Toothed Lock Washer)）

Configure

Specification/Dimensions

Material

Surface Treatment

Inner Dia. d(mm)

I.D. d(inch)

Nominal of Thread (M)

Outer Diameter D(inch)

Type

Type (Application)

Sales Unit

Thickness t(mm)

Thickness t(inch)

Type Spring Washers

Material: Stainless Steel

Surface Treatment (Detailed)

Nominal of Thread (inch)

Material Steel

Type Toothed Washer

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