Washers / lock washers（Surface Treatment：Parker）

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Wave Washer for Bearings

OCHIAI

Generates pressure with flat washers that have been bowed. Reduces vibration and noise by preloading the bearing.

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Wave Washer

OCHIAI

Generates a load by bending a flat washer into an arch-like shape. Obtain higher loads over bent washers.

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Spring Washer, Spring Washer No. 2

Spring Washer, Spring Washer No. 2【1-1,000 Pieces Per Package】

SUNCO

A portion of the flat washer is cut off, with a twisted shape. This twisted shape helps prevent loosening or falling if it is loosened. No. 2 is the most widely available type of spring washer.

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Flat, Round Washer

SUNCO

[Type (application)] Plain Washer
[Type] Plain Washer
[Materials] Steel
[Materials] Steel SPCC
[Surface treatment] None, Trivalent chromate, Bright chromate plating, Zinc plating, Chromate plating, Nickel plating, Parkerizing
[Nominal Thread (M)] 8 10 12 14 16 18 20 22 24 27 30 33 36 39 42 48
[Sales unit] Minimum Quantity (Available for Purchase from 1 pc) Box and Pkg.
[Surface treatment](Details) None, Trivalent chromate, Trivalent black, Trivalent white, Bright chromate plating, Hot dip galvanizing, Chromate plating, Chromate plating, Green chromate, Black chromate, Nickel plating, Parkerizing
[Outer diameter (mm)] 17 21 24 28 30 34 37

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Bent Washer

OCHIAI

A flat washer bent into an arch shape.
[Features]
· A flat washer bent into an arch shape that generates load through bending.
· Type: spring washer.
[Applications]
· Ideal for preventing loosening of screws.

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ISO Standard Round Washer Steel, Special Plating

ISO Standard Round Washer Steel, Special Plating【50-10,000 Pieces Per Package】

SUNCO

It is inserted between the bearing surface and tightening section when tightening machine screws or bolts. ISO standard.
[Material]
·Steel: highly corrosion resistant hot-dip coating steel plate
[Special Plating]
·Green Chromate / dacrotized / black chromate / tin cobalt / dark bronze color plating / hot-dip galvanizing / black nickel / chromate plating / parkerizing / trivalent black / 8 micron chromate yellow

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Starting from^∗ ：	48.54 €
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Whitworth Round Washer

Whitworth Round Washer【1,000 Pieces Per Package】

SUNCO

[Materials] Steel, Stainless steel
[Surface treatment] None, Trivalent chromate, Bright chromate plating, Zinc plating, Chromate plating, Nickel plating, Parkerizing, Painting, Coating

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Starting from^∗ ：	107.11 €
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Round Washer, Special Size, Steel, Special Plating

Round Washer, Special Size, Steel, Special Plating【1-4,000 Pieces Per Package】

SUNCO

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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

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Round Washer, ISO, Compact, Steel, Special Plating

Round Washer, ISO, Compact, Steel, Special Plating【120-10,000 Pieces Per Package】

SUNCO

[Features]
·When the counterpart is wood, use a round washer with a large outer diameter for wood to prevent depressions
[Material]
・ steel
[Special Plating]
·Parkerizing / dark bronze color plating / tin cobalt / black chromate / chromate plating / trivalent black / hot-dip galvanizing / green chromate / black nickel / Dacrotized

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Starting from^∗ ：	46.92 €
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Round Washer, JIS, Steel, Special Plating

SUNCO

[Features]
·When the counterpart is wood, use a round washer with a large outer diameter for wood to prevent depressions
[Material]
・ steel
[Special Plating]
·Chromate plating / hot-dip galvanizing / Parkerizing / trivalent stainless coating / micron trivalent white / green chromate / Dacrotized / trivalent black / Geomet treatment / dark bronze color plating / black chromate / tin cobalt / copper plating / black nickel / clear chromium-free plating / Lafre / hot-dip zinc aluminum alloy plating / stainless-steel-like coating / DISGO treatment

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Round Washer, JIS, Compact, Steel, Special Plating

Round Washer, JIS, Compact, Steel, Special Plating【350-10,000 Pieces Per Package】

SUNCO

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Starting from^∗ ：	35.71 €
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Brand
Product Series
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Type (Application)
Type
Material
Surface Treatment
I.D. d(mm)
Screw Nominal (M)
I.D. d(inch)
Screw Nominal (inch)
Thickness T(mm)
Sales Unit
Material: Steel
Thickness t(inch)
Material: Stainless Steel
Surface Treatment (Detailed)
Type, Spring Washers
Type, Toothed Washer
Outer Diameter D(inch)

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Brand	OCHIAI	OCHIAI	SUNCO	SUNCO	OCHIAI	SUNCO	SUNCO	SUNCO	OCHIAI	SUNCO	SUNCO	SUNCO
Product Series	Wave Washer for Bearings	Wave Washer	Spring Washer, Spring Washer No. 2【1-1,000 Pieces Per Package】	Flat, Round Washer	Bent Washer	ISO Standard Round Washer Steel, Special Plating【50-10,000 Pieces Per Package】	Whitworth Round Washer【1,000 Pieces Per Package】	Round Washer, Special Size, Steel, Special Plating【1-4,000 Pieces Per Package】	Folder Toothed Washer, Outside Tooth Profile	Round Washer, ISO, Compact, Steel, Special Plating【120-10,000 Pieces Per Package】	Round Washer, JIS, Steel, Special Plating	Round Washer, JIS, Compact, Steel, Special Plating【350-10,000 Pieces Per Package】
Starting from^∗	0.16 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	0.13 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	0.06 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	2.25 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	0.13 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	48.54 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	107.11 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	2.02 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	0.02 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	46.92 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	0.15 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount	35.71 € Special price *Unit price with basic configuration Promotional pricing ends 30/11/2024 Volume Discount
Min. Shipping Days	Same day	Same day	Same day	6 Days	Same day	6 Days	6 Days	6 Days	Same day	6 Days	Same day	6 Days
Type (Application)	Spring Washers	Spring Washers	Spring Washers	Plain Washers	Locking	Plain Washers	Plain Washers	Plain Washers	-	Plain Washers	Plain Washers	Plain Washers
Type	Spring Washers	Spring Washers	Spring Washers	Plain Washers	Spring Washers	Plain Washers	Plain Washers	Plain Washers	Toothed Washers (Toothed Lock Washers)	Plain Washers	Plain Washers	Plain Washers
Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Surface Treatment	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker
I.D. d(mm)	8.8 ～ 112.4	4.3 ～ 61.9	3.1 ～ 24.5	9 ～ 42	4.1 ～ 15.9	3.2 ～ 31	7.2	3.3 ～ 17	3.2 ～ 10.5	4.3 ～ 25	3.3 ～ 31.5	3.3 ～ 17
Screw Nominal (M)	-	-	3 ～ 24	8 ～ 39	-	3 ～ 30	-	3 ～ 17	3 ～ 10	4 ～ 24	3 ～ 30	3 ～ 16
I.D. d(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Screw Nominal (inch)	-	-	1/2 ～ 3/8	-	-	-	1/4	-	-	-	-	-
Thickness T(mm)	0.15 ～ 0.8	0.2 ～ 0.45	0.7 ～ 5.9	1.6 ～ 6	0.15 ～ 0.5	0.5 ～ 4	1.6	1 ～ 6	0.45 ～ 0.9	0.8 ～ 4	0.5 ～ 4.5	0.5 ～ 2.6
Sales Unit	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.)	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.) / Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.
Material: Steel	EN 1.0601 Equiv.	EN 1.0601 Equiv.	JIS-SWRH	EN 1.0330 Equiv.	EN 1.0601 Equiv.	EN 1.0330 Equiv.	EN 1.0330 Equiv.	EN 1.0330 Equiv.	EN 1.0601 Equiv.	EN 1.0330 Equiv.	EN 1.0330 Equiv.	EN 1.0330 Equiv.
Thickness t(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Material: Stainless Steel	-	-	-	-	-	-	-	-	-	-	-	-
Surface Treatment (Detailed)	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker	Parker
Type, Spring Washers	Wave Washers	Wave Washers	Standard	-	Bent Washers	-	-	-	-	-	-	-
Type, Toothed Washer	-	-	-	-	-	-	-	-	External Teeth Type	-	-	-
Outer Diameter D(inch)	-	-	-	-	-	-	-	-	-	-	-	-

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Type (Application)
- Plain Washers
- Spring Washers
- Special Shape
- Locking
- For Fluid
Clear

Type
- Plain Washers
- Spring Washers
- Toothed Washers (Toothed Lock Washers)
- Rosette Washers
- Single/Double Tab Washers
- Nord-lock Washers
- Set Washers
- Tapered Washers
- Spherical Washers
- Ornamental Screws, Ornamental Washers
- Hooked Washers for Jig
- Split Washers for Jig
- Square Washers
- Flat Washers with Cover
- Seal Washers
- Pawl Washers
- For Corrugated Sheet
- Fall Prevention and loosening Prevention Spring
Images

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

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

I.D. d(mm)
0

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

1.05

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.75

1.8

2

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

9.4

9.5

9.6

9.8

10

10.1

10.2

10.3

10.4

10.5

10.6

10.7

10.8

11

11.2

11.3

11.4

11.5

11.6

11.8

12

12.1

12.2

12.5

12.6

12.7

13

13.2

13.3

13.5

13.8

14

14.2

14.3

14.4

14.5

14.6

15

15.2

15.5

15.8

15.9

16

16.1

16.2

16.5

16.7

16.9

17

17.5

17.7

17.8

18

18.2

18.3

18.4

18.5

18.7

18.8

18.9

19

19.5

19.6

19.7

19.8

20

20.1

20.2

20.5

20.7

20.9

21

21.4

21.5

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

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

46.2

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

60

61.3

61.9

62

63

63.1

64

64.2

65

66

67.1

68

69

69.5

70

71.1

72

74

75

75.1

78

79.1

79.3

79.7

80

82

83.1

85

86

87.5

88

88.9

90

92

93

95

95.8

99

100

102

105

108.3

110

112.4

115

120

125

130

135

140

150

155

160

170

404

406

408

410

412

414

416

417

418

419

422

427

430

433

436
Drawing

Clear

Screw Nominal (M)
0.5

1

1.2

1.4

1.6

1.7

2

M2

2.3

2.5

2.6

3

M3

3.5

4

M4

4.5

5

M5

5.1

6

M6

7

8

M8

9

10

M10

11

12

M12

13

13.5

14

M14

15

16

M16

17

18

19

20

21

22

23

24

25

26

27

28

30

31

32

33

34

36

37

38

39

41

42

43

44

45

46

47

48

50

51

52

54

55

56

60

64

66

68

70

72

76

80

85

90

95

105

110

115

120

125

130
Clear

I.D. d(inch)
0.109

0.115

0.135

0.148

0.200

0.227

0.260

0.355

0.400

0.416

0.450

0.512

0.525

0.573

0.827

0.894

0.952

1.025

1.077

1.202

1.327

1.640
Drawing

Clear

Screw Nominal (inch)
1

1 1/2

1 1/4

1 1/8

1/2

1 3/8

1/4

2

No. 2

No. 3

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

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

2.85

3

3.2

3.3

3.4

3.5

3.55

3.6

3.7

3.8

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

6.5

6.6

6.8

7

7.1

7.2

7.5

7.6

7.9

8

8.2

8.3

8.5

8.7

9

9.1

9.3

9.5

9.8

10

10.2

10.4

10.5

11

11.2

11.8

12

12.5

13

13.1

14

15

15.8

16

17

18

19

20

20.3

21

22

23

24

24.5

25

26

27

28

29

30
Drawing

Clear

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

Material: Steel
EN 1.0038 Equiv.

EN 1.0320 Equiv. (hot coiled)

EN 1.0330 Equiv.

EN 1.0601 Equiv.

EN 1.0715 Equiv.

EN 1.1158 Equiv.

EN 1.1191 Equiv.

EN 1.1203 Equiv.

EN 1.1206 Equiv.

JIS-SWRH

SCM Steel

Spring Steel
Clear

Thickness t(inch)
0.031

0.042

0.044

0.047

0.055

0.056

0.062

0.073

0.088

0.100

0.109

0.115

0.125

0.135

0.219

2

3
Drawing

Clear

Material: Stainless Steel
EN 1.4301 Equiv.

EN 1.4305 Equiv.

EN 1.4325 Equiv.

EN 1.4401 Equiv.

EN 1.4404 Equiv.

EN 1.4462 Equiv.

EN 1.4842 Equiv.

254SMO
Clear

Surface Treatment (Detailed)
- Not Provided
- Black Oxide
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Parker
- Black Anodized Aluminum
- Dacrotized
- Buffed Surface
- Barrel, Passivated
- Special Chemical Grinding
- GeoMet Coating
- Stainless Steel Coating
- Baked Paint
- Seizure-Against Coating
- Copper Plating
- Tin Plating
- Lafre
- Black Painted
- White Paint
- Black Baked Paint
- Tempered Collar
- Other Special Treatment
- Passivated
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Type, Spring Washers
- Standard
- Disc Spring Washers
- Wave Washers
- Serrated Conical Disc Spring Washers
- Bent Washers
Details

Clear

Type, Toothed Washer
- Internal Teeth Type
- External Teeth Type
- Flat Teeth Type
- Internal External Teeth Type
Images

Clear

Outer Diameter D(inch)
0.250

0.270

0.332

0.334

0.377

0.487

0.645

0.760

0.776

0.869

0.885

0.895

1.260

1.459

1.770

2.020

2.520

2.770

3.270
Drawing

Clear

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