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Metal Washers, Collars（I.D. Tolerance：±0.15）
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. Availabl
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.
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9 items
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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- Volume Discount
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 Unit of Purchase IKOU4 Straight 6 ～ 10 3.2 ～ 6.3 2 ～ 30 Straight Special Steel Trivalent Chromate (Clear) ±0.15 ±0.1 Not Specified Single Item / Bulk Package - From: ₹ 28.00 Days to Ship: 5 Day(s) or more 
5 Day(s) or more
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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- Volume Discount
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 Unit of Purchase IKOU4 Straight 5 ～ 10 3.2 ～ 6.3 1 ～ 50 Straight Brass Not Provided / Electroless Nickel Plating ±0.15 ±0.1 ±0.05 Single Item / Bulk Package - From: ₹ 15.00 Days to Ship: 5 Day(s) or more
5 Day(s) or more
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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- Volume Discount
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 Unit of Purchase IKOU4 Straight 5.3 ～ 7.8 4.1 ～ 6.2 2 ～ 35 Straight Steel Trivalent Chromate (Clear) ±0.15 Not Specified +0.2 to -0.1 ～ +0.3 to -0.1 Bulk Package - From: ₹ 12.00 Days to Ship: 5 Day(s) or more
5 Day(s) or more
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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- Volume Discount
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 Unit of Purchase IKOU4 Straight 6 ～ 10 3.2 ～ 5.3 1 ～ 50 Straight Aluminum Not Provided / Electroless Nickel Plating / Anodize (Black) ±0.15 ±0.1 Not Specified Bulk Package - From: ₹ 20.00 Days to Ship: 5 Day(s) or more
5 Day(s) or more
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You can add up to 6 items per a category to the compare list.
Stainless Steel Spacer (Hollow) CU/CU-H/CU-U
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
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 Unit of Purchase IKOU4 Straight 4 ～ 10 2.2 ～ 6.3 1 ～ 40 Straight Stainless Steel Not Provided ±0.15 ±0.1 Not Specified Single Item / Bulk Package - From: ₹ 30.00 Days to Ship: 5 Day(s) or more
5 Day(s) or more
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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)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 Unit of Purchase IKOU4 Straight 4 ～ 10 2.2 ～ 6.3 3 ～ 20 Straight Brass Electroless Nickel Plating ±0.15 ±0.1 Not Specified Bulk Package - From: ₹ 17.00 Days to Ship: 6 Day(s) or more
6 Day(s) or more
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You can add up to 6 items per a category to the compare list.
Aluminum Spacer (Hollow/Pickled) / CL-E
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
RoHS-compliant- Volume Discount
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 Unit of Purchase IKOU4 Straight 6 ～ 10 3.2 ～ 5.3 5 ～ 6 Straight Aluminum Not Provided ±0.15 ±0.1 Not Specified Bulk Package - From: ₹ 21.00 Days to Ship: 5 Day(s) or more
5 Day(s) or more
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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)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 Unit of Purchase IKOU4 Straight 6 3.2 10 ～ 30 Square Brass Electroless Nickel Plating ±0.15 ±0.1 Not Specified Bulk Package - From: ₹ 23.00 Days to Ship: 6 Day(s) or more
6 Day(s) or more
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You can add up to 6 items per a category to the compare list.
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.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 Unit of Purchase IKOU4 Straight 6 3.2 5 Straight Titanium Not Provided ±0.15 ±0.1 Not Specified Bulk Package - From: ₹ 174.00 Days to Ship: 20 Day(s) or more
20 Day(s) or more
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| Unit of Purchase |
| IKOU4 |
You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | You can add up to 6 items per a category to the compare list.  | |
| Brand | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI | HIROSUGI-KEIKI |
| Product Series | |||||||||
| From | ₹ 28.00 | ₹ 15.00 | ₹ 12.00 | ₹ 20.00 | ₹ 30.00 | ₹ 17.00 | ₹ 21.00 | ₹ 23.00 | ₹ 174.00 |
| Days to Ship | 5 Day(s) or more | 5 Day(s) or more | 5 Day(s) or more | 5 Day(s) or more | 5 Day(s) or more | 6 Day(s) or more | 5 Day(s) or more | 6 Day(s) or more | 20 Day(s) or more |
| I.D. Shape | Straight | Straight | Straight | Straight | Straight | Straight | Straight | Straight | Straight |
| O.D.(mm) | 6 ～ 10 | 5 ～ 10 | 5.3 ～ 7.8 | 6 ～ 10 | 4 ～ 10 | 4 ～ 10 | 6 ～ 10 | 6 | 6 |
| I.D.(mm) | 3.2 ～ 6.3 | 3.2 ～ 6.3 | 4.1 ～ 6.2 | 3.2 ～ 5.3 | 2.2 ～ 6.3 | 2.2 ～ 6.3 | 3.2 ～ 5.3 | 3.2 | 3.2 |
| Thickness/Length(mm) | 2 ～ 30 | 1 ～ 50 | 2 ～ 35 | 1 ～ 50 | 1 ～ 40 | 3 ～ 20 | 5 ～ 6 | 10 ～ 30 | 5 |
| Shape | Straight | Straight | Straight | Straight | Straight | Straight | Straight | Square | Straight |
| Material | Special Steel | Brass | Steel | Aluminum | Stainless Steel | Brass | Aluminum | Brass | Titanium |
| Surface Treatment | Trivalent Chromate (Clear) | Not Provided / Electroless Nickel Plating | Trivalent Chromate (Clear) | Not Provided / Electroless Nickel Plating / Anodize (Black) | Not Provided | Electroless Nickel Plating | Not Provided | Electroless Nickel Plating | Not Provided |
| I.D. Tolerance | ±0.15 | ±0.15 | ±0.15 | ±0.15 | ±0.15 | ±0.15 | ±0.15 | ±0.15 | ±0.15 |
| Thickness / Length Tolerance | ±0.1 | ±0.1 | Not Specified | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 | ±0.1 |
| O.D. Tolerance | Not Specified | ±0.05 | +0.2 to -0.1 ～ +0.3 to -0.1 | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified |
| Unit of Purchase | Single Item / Bulk Package | Single Item / Bulk Package | Bulk Package | Bulk Package | Single Item / Bulk Package | Bulk Package | Bulk Package | Bulk Package | Bulk Package |
| IKOU4 | - | - | - | - | - | - | - | - | - |
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Configure
Specification/Dimensions
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I.D. Shape
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Straight -
Counterbored -
Tapped -
Flat Head Screw -
Screw Hole -
Slotted Hole, Notched -
2-Hole
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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
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- 7.5
- 7.8
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- 8.5
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- 9.5
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- 12.2
- 12.5
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- 13.5
- 13.8
- 14
- 14.5
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- 16.5
- 17
- 17.3
- 17.5
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- 18.5
- 19
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- 21.5
- 21.7
- 22
- 22.5
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- 24
- 24.5
- 25
- 25.5
- 26
- 26.5
- 27
- 27.2
- 27.5
- 28
- 28.5
- 29
- 29.5
- 30
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- 31
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- 32
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- 42.7
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I.D.(mm)
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- 1
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- 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
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- 6.2
- 6.3
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- 6.5
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- 7.1
- 7.8
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- 8.2
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- 9.2
- 9.4
- 10
- 10.2
- 10.9
- 11
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- 12.7
- 14.3
- 15
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- 16.1
- 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
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Thickness/Length(mm)
- 1
- 1.5
- 1.6
- 2
- 2.5
- 3
- 3.5
- 4
- 4.5
- 5
- 5.5
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- 6.5
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- 7.5
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- 9.5
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- 10.5
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- 100
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Shape
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Straight -
Flanged -
Square
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Material
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Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Low Temperature Black Chrome
- Anodize (Clear)
- Anodize (Black)
- Trivalent Chromate (Black)
- Trivalent Chromate (Clear)
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I.D. Tolerance
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Thickness / Length Tolerance
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O.D. Tolerance
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Unit of Purchase
- Single Item
- Bulk Package
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IKOU4
- Degreasing
- Precision Cleaning
- Electrolytic polishing + precision cleaning
- No
Related Categories to Metal Washers, Collars
FAQ Metal Washers, Collars
- Question: What are metal washers and collars?
- Answer: Washers and collars are essential parts in engineering and mechanical applications. They distribute the force of threaded fasteners, such as bolts or screws, to prevent damage and ensure a secure hold. They can also be used as spacers, locking devices and wear pads. Collars are cylindrical spacers used to maintain the position of parts on a shaft or other component.
- Question: How do I choose the right metal washer or collar for my application?
- Answer: When selecting a metal washer or collar, consider the following features:
• Inside Diameter (ID): Make sure it matches the diameter of the bolt or shaft.
• Outside Diameter (OD): Should be large enough to distribute the force effectively.
• Thickness/Length: Must fit the space and load requirements.
• Material: Selected based on the application environment (e.g. stainless steel for corrosion resistance).
• Surface Treatment: For added protection and durability, a finish such as black oxide or nickel plating is available. - Question: What material are the metal washers and collars made of?
- Answer: Commonly used materials include:
• Stainless Steel: has excellent corrosion resistance and strength
• Steel: versatile material, suitable for most applications
• Brass: provides good electrical conductivity and corrosion resistance
• Aluminum: lightweight and corrosion resistant, ideal for weight-sensitive applications
- Question: What is the difference between standard and precision grade washers and collars?
- Answer: Standard grade washers and collars are suitable for general applications where tight tolerances are not important. However, precision grades provide tighter tolerances and better surface finish, making them ideal for high precision applications where exact dimensions are critical.
- Question: Can I customize the size of the washers and collars?
- Answer: Yes, many suppliers offer customizable options for washers and collars. You can specify inside and outside diameters, thicknesses, and even special features like deep holes or flanged edges to meet the specific needs of your application.
- Question: What is the importance of surface coating on metal washers and collars?
- Answer: Surface treatment can improve the performance and life of washers and collars by enhancing properties such as corrosion resistance, hardness or aesthetics. Common finishes include:
• Black oxide: Increases corrosion resistance and reduces light reflection.
• Nickel plating: Provides a smooth, shiny surface with good corrosion resistance.
• Anodizing: Commonly applied to aluminum to improve corrosion resistance and color.
- Question: How can I be sure that the washer and collar meet my durability requirements?
- Answer: Specify tolerance level when ordering. Standard options include:
• Inner diameter tolerance: ±0.05mm to +0.3mm
• Outer diameter tolerance: ±0.1mm to ±0.3mm
• Thickness tolerance: ±0.01mm to ±0.3mm - Question: Are there special washers and collars for specific applications?
- Answer: Yes, there are many specialised types available, such as:
• Countersunk washers: Designed for use with countersunk screws, allowing the screw to be flush with the face
• Flange collars: Provide a larger bearing surface, which distributes forces over a larger area
• Hardened washers: Ideal for high load or high wear applications due to their increased hardness
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