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Washers（Surface Treatment：Dacrotizing）

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

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

9.5

9.6

9.8

10

10.1

10.2

10.3

10.5

10.6

10.7

10.8

11

11.2

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

14.5

14.6

15

15.2

15.5

15.8

15.9

16

16.1

16.2

16.3

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

19.3

19.5

19.6

19.7

19.8

20

20.1

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

32.3

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

38.3

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

82

83.1

87.5

88.9

95.8

99

108.3

112.4
Drawing

Clear

I.D. d(inch)
0.109

0.135

0.141

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

1.077

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

M3

3.5

4

M4

4.5

5

M5

5.1

6

M6

7

8

M8

8.5

9

10

M10

11

12

M12

13

13.5

14

14.5

15

16

M16

17

18

19

20

M20

21

22

23

24

25

26

27

28

30

31

32

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

64

65.1

65.2

65.3

65.5

65.6

66

68

70

70.2

72

76

80

80.3

85

85.1

85.2

85.3

85.4

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

125.3

125.4

125.5

130

130.2

135.2

135.3

135.4

135.5

135.6

140.3

140.4

140.5

145.4

145.5

150.2

150.3

150.6

170.2

170.3

170.4

170.5

170.6

180.3

180.4

180.5

180.6

190.4

210.3

210.4

210.5

210.6

220.4

220.5

220.7

230.5

235.5

240.5

240.6

250.3

255.6

260.4

260.5

260.6

285.4

330.6
Clear

Outer Diameter D(inch)
0.25

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

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

1.5/5

1.6

1.75

1.8

1.9

2

2/4.5

2/6

2.1

2.2

2.3

2.4

2.5

2.5/4.5

2.5/7

2.6

2.7

2.8

3

3/6

3/7

3/8

3/9

3.2

3.3

3.4

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

6.9

7

7.1

7.2

7.5

7.9

08

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

25

27

30

32

45
Drawing

Clear

Thickness t(inch)
0.031

0.042

0.044

0.047

0.055

0.056

0.062

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
- Chromium free
- Trivalent Chromate
- Bright Chrome Plating
- Zinc Plating
- Hot Zinc Plating
- Chromate Plating
- Nickel Plating
- Black Nickel Plating
- Chrome Plating
- Parkerizing
- Black Anodize
- Dacrotizing
- Barrel, Passivated
- Special Chemical Grinding
- GeoMet Coating
- Disgo Treatment
- Baked Paint
- Seizure-Against Coating
- Copper Plating
- Tin Plating
- Lafre
- Black Paint
- White Paint
- Temper Color
- Other Special Treatment
- 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

SCM Steel

SPCC

SPHC

SWRH

Spring Steel
Clear

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

Clear

Brand	(0) (0) ACCURATE (0) ASANO SS (0) BUMAX (0) ESCO (0) GOSHO WORKS (0) HEIWA HATSUJYO (0) HIROSUGI-KEIKI (0) IMAO CORPORATION (0) IMPERIAL (0) IWATA DENKO (0) IWATA MFG (0) KEEPER (0) KONISHI (0) KONOE (0) KYUHI SEIRA (0) MARUEMU WORKS (0) NBK (0) NORDLOCK (0) OCHIAI (0) OHKITA (0) OHSATO (0) OHTOMO SS (0) OPG (0) OUMI OFT (0) RS Pro (0) SAIMA CORPORATION (0) SOHWA SEISAKUSHO (0) SUGITA ACE (0) SUNCO (12) TAIYO STAINLESS SPRING (0) TAKIGEN (0) TOKYO METAL (0) TRUSCO (0) YAHATA (0) YAMAHIRO (0)
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12 items

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: 30; 60; 90

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Until 31/03/2025

Spring Lock Washer No. 2【1-1,500 Pieces Per Package】

SUNCO

A plain washer that has been cut and formed into a torsional type shape.
This torsion has the effect of preventing it from becoming loose, or of preventing it from falling out if it does become loose.
Among the spring-washer types available, the No. 2 is the most widely used product in circulation.

From: ฿ 2.69
Special Price
Days to Ship: Same day

Same day

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Round Washer, Special Size, Steel, Special Plating

Until 31/03/2025

Round Washer, Special Size, Steel, Special Plating【1-1,500 Pieces Per Package】

SUNCO

From: ฿ 4.77
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Until 31/03/2025

Spring Washer for Caps【1,500 Pieces Per Package】

SUNCO

[Materials] Steel, Stainless steel
[Surface treatment] None, Trivalent chromate, Bright chromate plating, Nickel plating, Chrome plating, Dacrotized, Painting, Coating, Silver/Copper/Tin plating

From: ฿ 4,146.29
Special Price
Days to Ship: 6 Day(s)

6 Day(s)

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Until 31/03/2025

S45C High Tension Washer【1-500 Pieces Per Package】

SUNCO

[Features]
·If the mating material is wood, use a round washer for wood with a large outer diameter to prevent sinking.

From: ฿ 11.23
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Until 31/03/2025

Tapered Washer 5° for Channels

SUNCO

Made by SUNCO. For channel steel. Type: beveled washer.

From: ฿ 20.05
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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ISO Standard Round Washer Steel, Special Plating

Until 31/03/2025

ISO Standard Round Washer Steel, Special Plating【1,000-5,000 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

From: ฿ 1,234.29
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Until 31/03/2025

Circular Washer Thin【1,000 Pieces Per Package】

SUNCO

[Materials] Stainless steel, SUS304, SUS316
[Surface treatment](Details) None, Dacrotized, Geomet-treated, German brown plating, Black paint

From: ฿ 2,322.58
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Until 31/03/2025

Spring Washer No. 3, for Heavy Loads

SUNCO

For use with heavy loads. The screw has a larger outer diameter than No. 2. A twisted conformation is created, with part of the flat washer cut off. This twisted shape helps prevent loosening or falling if the screw is loosened.

From: ฿ 22.47
Special Price
Days to Ship: 19 Day(s)

19 Day(s)

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Until 31/03/2025

Small Square Washer【800 Pieces Per Package】

SUNCO

These square washers are mainly used for wood. etc. Type (Application): Special shape / Type: Square washer / Material: Steel

From: ฿ 7,432.26
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Round Washer, JIS, Steel, Special Plating

Until 31/03/2025

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

From: ฿ 0.50
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Round Washer, ISO, Compact, Steel, Special Plating

Until 31/03/2025

Round Washer, ISO, Compact, Steel, Special Plating【2,500 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

From: ฿ 1,386.67
Special Price
Days to Ship: 5 Day(s)

5 Day(s)

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Round Washer, JIS, Stainless Steel, Special Plating

Until 31/03/2025

Round Washer, JIS, Stainless Steel, Special Plating【1,500 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]
· Stainless steel
[Special Plating]
·Geomet treatment / Dacrotized / black paint / dark bronze color plating / painted head (white)

From: ฿ 4,645.16
Special Price
Days to Ship: 5 Day(s)

5 Day(s)


Brand
Product Series
From
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

	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025	You can add up to 6 items per a category to the compare list.Compare Until 31/03/2025
Brand	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO	SUNCO
Product Series	Spring Lock Washer No. 2【1-1,500 Pieces Per Package】	Round Washer, Special Size, Steel, Special Plating【1-1,500 Pieces Per Package】	Spring Washer for Caps【1,500 Pieces Per Package】	S45C High Tension Washer【1-500 Pieces Per Package】	Tapered Washer 5° for Channels	ISO Standard Round Washer Steel, Special Plating【1,000-5,000 Pieces Per Package】	Circular Washer Thin【1,000 Pieces Per Package】	Spring Washer No. 3, for Heavy Loads	Small Square Washer【800 Pieces Per Package】	Round Washer, JIS, Steel, Special Plating	Round Washer, ISO, Compact, Steel, Special Plating【2,500 Pieces Per Package】	Round Washer, JIS, Stainless Steel, Special Plating【1,500 Pieces Per Package】
From	฿ 2.69 Special Price On Sale Until 31/03/2025	฿ 4.77 Special Price On Sale Until 31/03/2025	฿ 4,146.29 Special Price On Sale Until 31/03/2025	฿ 11.23 Special Price On Sale Until 31/03/2025	฿ 20.05 Special Price On Sale Until 31/03/2025	฿ 1,234.29 Special Price On Sale Until 31/03/2025	฿ 2,322.58 Special Price On Sale Until 31/03/2025	฿ 22.47 Special Price On Sale Until 31/03/2025	฿ 7,432.26 Special Price On Sale Until 31/03/2025	฿ 0.50 Special Price On Sale Until 31/03/2025	฿ 1,386.67 Special Price On Sale Until 31/03/2025	฿ 4,645.16 Special Price On Sale Until 31/03/2025
Days to Ship	Same day	5 Day(s)	6 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	19 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)	5 Day(s)
Material	Steel / Stainless Steel	Steel	Steel	Steel	Steel	Steel	Stainless Steel	Steel	Steel	Steel	Steel	Stainless Steel
Surface Treatment	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing
Inner Dia. d(mm)	5.1 ～ 24.5	6 ～ 13.5	10.2	10 ～ 25	14 ～ 17.5	5.3 ～ 8.4	8.5	16.2	6.6	6.5 ～ 21	6.4	8.5
I.D. d(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Nominal of Thread (M)	5 ～ 24	6 ～ 85.2	10	10 ～ 25	12 ～ 16	5 ～ 8	8	16	6	6 ～ 20	6	8
Outer Diameter D(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Type	Spring Washer	Flat Washer	Spring Washer	Flat Washer	Tapered Washer	Flat Washer	Flat Washer	Spring Washer	Square Washer	Flat Washer	Flat Washer	Flat Washer
Type (Application)	Spring Washer	Flat Washer	Spring Washer	Flat Washer	Special Shaped Washer	Flat Washer	Flat Washer	Spring Washer	Special Shaped Washer	Flat Washer	Flat Washer	Flat Washer
Sales Unit	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.	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Low Quantity (Available beginning with 1 pc.)	Box, Pkg.	Box, Pkg.
Thickness t(mm)	1.3 ～ 5.9	1 ～ 4.5	2.5	3.2 ～ 6	4.5 ～ 6	1 ～ 1.6	1.2	4.8	1.2	1 ～ 3.2	1.6	1.6
Thickness t(inch)	-	-	-	-	-	-	-	-	-	-	-	-
Type Spring Washers	Standard	-	Standard	-	-	-	-	Standard	-	-	-	-
Material: Stainless Steel	SUS304	-	-	-	-	-	SUS304	-	-	-	-	SUS304
Surface Treatment (Detailed)	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing	Dacrotizing
Nominal of Thread (inch)	-	-	-	-	-	-	-	-	-	-	-	-
Material Steel	SWRH	SPCC	SWRH	S45C	SS400	SPCC	-	-	SPCC	SPCC	SPCC	-
Type Toothed Washer	-	-	-	-	-	-	-	-	-	-	-	-