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Discontinued Products

Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 9:00 9/2/2025 to 7:00 (SGT) 10/2/2025. We apologize for the inconvenience.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Metal Washers, Collars（Sale Type：Bulk Package）

Metal washers and collars are versatile fasteners designed to distribute loads, provide spacing, and ensure precise positioning in various mechanical and engineering applications. These components are essential in preventing loosening and damage to surfaces during the tightening of bolts and screws. Available in multiple materials such as stainless steel, steel, brass, and aluminum, they offer varying degrees of strength, corrosion resistance, and weight. Customizable in terms of inner and outer diameters, thickness, and surface treatments like black oxide and nickel plating, metal washers and collars cater to specific needs, ensuring optimal performance and longevity in demanding environments.

14 items

: 30; 45; 60

Days to Ship	All Same day 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 12 Day(s) or Less

Aluminum Spacer (Hollow) CL-E/-BE/-KE

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 2/2.6/3/4/5/6
[Materials] For M2: Lead-free free-cutting aluminum (CB156) with lead content of 10 ppm or less.
For M2.6 to M6: Lead-free free-cutting aluminum (KS26) with lead content of 300 ppm or less
[Treatment] Pickling, black alumite (BAL), Kanigen plating

Standard Price:	SGD 0.22-
Days to Ship:	4 Day(s) or more

Stainless Steel Spacer (Hollow) CU/CU-H/CU-U

Stainless Steel Spacer (Hollow) CU/CU-H/CU-U【1-50 Pieces Per Package】

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 2/2.6/3/4/5/6
[Materials] Stainless steel (SUS303 / 304 / 316)
[Treatment] Degreasing

Volume Discount

Standard Price:	SGD 0.47-
Days to Ship:	4 Day(s) or more

Steel Spacer (Hollow) / CF-E

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 2/2.6/3/4/5/6
[Materials] Free-cutting steel (SUM)
[Treatment] Trivalent chromium chromate treatment

Standard Price:	SGD 0.17-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Brass Spacer (Hollow, Round) CB-E/-BE/-CE

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 1.7/2/2.6/3/4/5
[Materials] Free-cutting brass (C3604BD) with less than 75 ppm cadmium content
[Treatment] Degreasing, nickel plating, black nickel plating

Standard Price:	SGD 0.21-
	Special Price
Days to Ship:	4 Day(s) or more

Metal Washers (Pkg.) - Pressed Type

Metal Washers (Pkg.) - Pressed Type【50-100 Pieces Per Package】

MISUMI

"Are larger in O.D. and thicker than standard washers. Are press-formed and thus, are lower priced than machined products."

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 58.96-
Days to Ship:	Same day or more

Stainless Steel Spacer (Hollow, Pipe) CU-PH/-PU

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 2/2.6/3/4/5/6
[Materials] Stainless steel (SUS304 / 316)
[Treatment] Degreasing
*The stainless steel 304 spacer uses high-grade stainless steel.

Standard Price:	SGD 0.56-
Days to Ship:	4 Day(s) or more

Spacer (Rolled Bushing / Spacing Tube)

Spacer (Rolled Bushing / Spacing Tube)【300-1,000 Pieces Per Package】

TAIYO STAINLESS SPRING

Made from sheet metal formed into a cylinder. Used for reinforcing spacer tubes, rubber, plastic, etc.

Standard Price:	SGD 27.43-
Days to Ship:	7 Day(s) or more

Brass Spacer (Hollow, Round) Pipe CB-P/CB-PC

HIROSUGI-KEIKI

[Nominal size (M) of compatible screws] 2/2.6/3/4/5/6
[Materials] Brass (C2700T-H) with less than 10 ppm cadmium content
[Treatment] Degreasing, nickel plating (Ni)

Standard Price:	SGD 0.22-
Days to Ship:	4 Day(s) or more

Steel Spacer (Hollow / Winding Pipe) /CF-ZE

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 2/2.6/3/4/5/6
[Material] Steel Plate (SPCC)
[Processing] Trivalent Chromium Chromate Processing

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

Aluminum Spacer (Hollow/Pickled) / CL-E

Aluminum Spacer (Hollow/Pickled) / CL-E【50 Pieces Per Package】

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 2/2.6/3/4/5/6
[Material] For M2: Lead-Free Free-Cutting Aluminum (CB156) Lead Content 10 ppm or Less / For M2.6 to M6: Lead-Free Free-Cutting Aluminum (KS26) Lead Content 300 ppm or Less
[Processing] Pickling

Volume Discount

Standard Price:	SGD 25.31
Days to Ship:	16 Day(s)

Brass Spacer (Hollow Pipe, Round) / CB-PC

Brass Spacer (Hollow Pipe, Round) / CB-PC【50 Pieces Per Package】

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 2/2.6/3/4/5/6
[Material] Brass (C2700T-H), Cadmium Content Less than 10 ppm
[Processing] Degreasing

Volume Discount

Standard Price:	SGD 21.24
Days to Ship:	16 Day(s)

Eco Spacer (Hollow) / CE-N

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 2/2.6/3/4/5/6
[Material] Lead-Free Free-Cutting Brass (Bismuth Base)
[Processing] Nickel Plating (Ni)

Standard Price:	SGD 0.26-
Days to Ship:	21 Day(s) or more

Titanium Spacer (Hollow) / CTI

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 3
[Material] Pure Titanium
[Processing] Degreasing
Lightweight titanium has specific gravity about 60% of that of stainless steel, as well as excellent chemical resistance and especially seawater resistance.
Since titanium is non-magnetic, it can be used for electronic equipment, semiconductor manufacturing equipment, medical equipment and the like that require non-magnetic properties.

Standard Price:	SGD 6.90
Days to Ship:	21 Day(s) or more

Brass Spacer (Hollow, Square) / CQB-E

HIROSUGI-KEIKI

[Supported Screw Nominal (M)] 3/4
[Material] Free-Cutting Brass (C3604BD), Cadmium Content Less than 75 ppm
[Processing] Nickel Plating (Ni)

Standard Price:	SGD 0.42-
Days to Ship:	7 Day(s) or more


Brand
Product Series
CAD
Days to Ship
I.D. Shape
O.D.(mm)
I.D.(mm)
Thickness/Length(mm)
Shape
Material
Surface Treatment
I.D. Tolerance
Thickness / Length Tolerance
O.D. Tolerance
Sale Type

				On Sale Till 31/03/2025
Brand	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	MISUMI	HIROSUGI-KEIKI	TAIYO STAINLESS SPRING	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI	HIROSUGI-KEIKI
Product Series	Aluminum Spacer (Hollow) CL-E/-BE/-KE	Stainless Steel Spacer (Hollow) CU/CU-H/CU-U【1-50 Pieces Per Package】	Steel Spacer (Hollow) / CF-E	Brass Spacer (Hollow, Round) CB-E/-BE/-CE	Metal Washers (Pkg.) - Pressed Type【50-100 Pieces Per Package】	Stainless Steel Spacer (Hollow, Pipe) CU-PH/-PU	Spacer (Rolled Bushing / Spacing Tube)【300-1,000 Pieces Per Package】	Brass Spacer (Hollow, Round) Pipe CB-P/CB-PC	Steel Spacer (Hollow / Winding Pipe) /CF-ZE	Aluminum Spacer (Hollow/Pickled) / CL-E【50 Pieces Per Package】	Brass Spacer (Hollow Pipe, Round) / CB-PC【50 Pieces Per Package】	Eco Spacer (Hollow) / CE-N	Titanium Spacer (Hollow) / CTI	Brass Spacer (Hollow, Square) / CQB-E
CAD					2D / 3D
Days to Ship	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	Same day or more	4 Day(s) or more	7 Day(s) or more	4 Day(s) or more	4 Day(s) or more	16 Day(s)	16 Day(s)	21 Day(s) or more	21 Day(s) or more	7 Day(s) or more
I.D. Shape	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight
O.D.(mm)	4 ～ 10	4 ～ 10	4 ～ 10	3 ～ 10	10 ～ 20	3.2 ～ 8	3 ～ 12.2	3.2 ～ 8	3 ～ 7.8	8	6.4	4 ～ 10	6	6
I.D.(mm)	2.2 ～ 6.3	2.2 ～ 6.3	2.2 ～ 6.3	1.8 ～ 6.3	3 ～ 10	2.2 ～ 6.4	2 ～ 10.2	2.2 ～ 6.4	2 ～ 6.2	4.3	5.2	2.2 ～ 6.3	3.2	3.2
Thickness/Length(mm)	1 ～ 50	1 ～ 40	2 ～ 30	1 ～ 40	1 ～ 3	2 ～ 72	1.6 ～ 40	1 ～ 45	1.6 ～ 35	6	7	3 ～ 20	5	10 ～ 30
Shape	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Straight	Square
Material	Aluminum	Stainless Steel	Special Steel	Brass	Steel	Stainless Steel	Steel	Brass	Steel	Aluminum	Brass	Brass	Titanium	Brass
Surface Treatment	Not Provided / Electroless Nickel Plating / Anodize (Black)	Not Provided	Trivalent Chromate (White)	Not Provided / Electroless Nickel Plating	Black Oxide / Electroless Nickel Plating	Not Provided	Trivalent Chromate (Black) / Trivalent Chromate (White)	Not Provided / Electroless Nickel Plating	Trivalent Chromate (White)	Not Provided	Not Provided	Electroless Nickel Plating	Not Provided	Electroless Nickel Plating
I.D. Tolerance	±0.1 ～ ±0.2	±0.1 ～ ±0.15	±0.1 ～ ±0.15	±0.1 ～ ±0.15	+0.3~+0.1	+0.1 to -0.2	±0.05 ～ +0.05 to 0	Not Specified	±0.1 ～ ±0.15	±0.15	Not Specified	±0.15	±0.15	±0.15
Thickness / Length Tolerance	±0.1	±0.1	±0.1	±0.1	±0.08 ～ ±0.15	±0.1 ～ ±0.4	±0.05 ～ ±0.2	Not Specified	Not Specified	±0.1	Not Specified	±0.1	±0.1	±0.1
O.D. Tolerance	Not Specified	Not Specified	Not Specified	±0.05	0~-0.2	±0.1	+0.2 to -0.1 ～ +0.3 to -0.1	Not Specified	+0.2 to -0.1 ～ +0.3 to -0.1	Not Specified	Not Specified	Not Specified	Not Specified	Not Specified
Sale Type	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package	Bulk Package

Configure

Specification/Dimensions

I.D. Shape
- Straight
- Counterbored
- Tapped
- Flat Head Screw
- Screw Hole
- Slotted Hole, Notched
- 2-Hole
Larger Image

Clear

O.D.(mm)
3

3.2

3.35

3.65

3.8

4

4.2

4.5

5

5.2

5.3

5.5

6

6.3

6.4

6.5

7

7.5

7.8

8

8.5

9

9.5

10

10.5

11

11.5

12

12.2

12.5

13

13.5

13.8

14

14.5

15

15.5

16

16.5

17

17.3

17.5

18

18.5

19

19.5

20

20.5

21

21.5

21.7

22

22.5

23

23.5

24

24.5

25

25.5

26

26.5

27

27.2

27.5

28

28.5

29

29.5

30

30.5

31

31.5

32

32.5

33

33.5

34

34.5

35

35.5

36

36.5

37

37.5

38

38.5

39

39.5

40

40.5

41

41.5

42

42.5

42.7

43

43.5

44

44.5

45

45.5

46

46.5

47

47.5

48

48.5

48.6

49

49.5

50

51

52

53

54

55

56

57

58

59

60
Clear

I.D.(mm)
0

1

1.5

1.8

2

2.2

2.35

2.5

2.6

2.65

2.7

2.8

3

3.2

3.5

4

4.1

4.2

4.3

4.5

5

5.1

5.2

5.3

5.5

5.7

6

6.2

6.3

6.4

6.5

6.6

7.1

7.8

8

8.2

8.4

9

9.2

9.4

10

10.2

10.5

10.9

11

12

12.7

13

14.3

15

16

16.1

17

19.4

20

21.4

21.6

25

27.2

27.6

30

32.9

35.5

35.7

38.4

41.2

41.6
Clear

Thickness/Length(mm)
1

1.5

1.6

2

2.5

3

3.5

4

4.5

5

5.5

6

6.5

7

7.5

8

8.5

9

9.5

10

10.5

11

11.5

12

12.5

13

13.5

14

14.5

15

15.5

16

16.5

17

17.5

18

18.5

19

19.5

20

21

22

23

24

25

27

28

30

31

32

33

35

40

42

45

50

52

54

72
Clear

Shape
- Straight
- Flanged
- Square
Larger Image

Clear

Material
Aluminum

Brass

Special Steel

Stainless Steel

Steel

Titanium
Clear

Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Low Temperature Black Plating
- Anodize (Clear)
- Anodize (Black)
- Trivalent Chromate (Black)
- Trivalent Chromate (White)
Clear

I.D. Tolerance
±0.05

+0.05 to 0

±0.1

+0.1 to -0.2

±0.15

±0.2

+0.2~0

±0.3

+0.3~+0.1

H7

Not Specified
Clear

Thickness / Length Tolerance
-0.1~-0.3

-0.01~-0.03

0~-0.3

0~-0.2

0~-0.1

0~-0.02

±0.005

±0.01

+0.02~0

+0.03~+0.01

±0.05

±0.08

±0.1

+0.1~0

±0.13

±0.15

±0.2

+0.2~0

±0.3

+0.3~+0.1

±0.4

Not Specified
Clear