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IWATA MFG Metal Washers, Collars(I.D. Tolerance:+0.3~+0.1)

IWATA MFG offers products Metal Washers, Collars specified by I.D. Tolerance +0.3~+0.1 from Fasteners product category. There are a total of 1 items. The most popular types of screws, bolts, washers, nuts and bolts that can be used with all types of fastening work. IWATA MFG products are available to order through MISUMI online 24 hours a day. Free shipping, no minimum order.
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    It can be used for tightening bolts, spacers, etc. Sold by Single unit
    From: ฿ 67.62
    Days to Ship: day to ship 7 Day(s)
    day to ship 7 Day(s)
Product Series
Days to Ship
I.D. Shape
Surface Treatment
I.D. Tolerance
Thickness / Length Tolerance
O.D. Tolerance
Sale Type
You can add up to 6 items per a category to the compare list.


Product Series



฿ 67.62

Days to Ship 7 Day(s)
I.D. ShapeStraight
O.D.(mm)8 ~ 30
I.D.(mm)3 ~ 20
Thickness/Length(mm)2 ~ 5
MaterialStainless Steel ~ Steel
Surface TreatmentBlack Oxide / Electroless Nickel Plating
I.D. Tolerance+0.3~+0.1
Thickness / Length Tolerance±0.1
O.D. Tolerance0~-0.2
Sale TypeSingle Item


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FAQ Metal Washers, Collars

Question: What are metal washers and collars used for?
Answer: Metal washers and collars are essential components in various engineering and mechanical applications. Washers distribute the load of a threaded fastener, such as a bolt or nut, to prevent damage and ensure secure fastening. They can also act as spacers, locking devices, and wear pads. Collars, which are cylindrical spacers, are used to maintain precise positioning of parts on shafts or other components.
Question: How do I choose the right metal washer or collar for my application?
Answer: When selecting metal washers or collars, consider the following specifications:
Inner Diameter (I.D.): Ensure it matches the bolt or shaft diameter.
Outer Diameter (O.D.): Should be large enough to distribute the load effectively.
Thickness/Length: Must fit the space and load requirements.
Material: Choose based on environmental conditions (e.g., stainless steel for corrosion resistance).
Surface Treatment: For added protection and durability, treatments like black oxide or nickel plating can be selected.
Question: What materials are metal washers and collars made from?
Answer: Common materials include:
Stainless Steel: Offers excellent corrosion resistance and strength.
Steel: General-purpose material suitable for most applications.
Brass: Provides good conductivity and resistance to corrosion.
Aluminum: Lightweight and corrosion-resistant, ideal for weight-sensitive applications.
Question: What are the differences between standard and precision grade washers and collars?
Answer: Standard grade washers and collars are suitable for general use where tight tolerances are not critical. Precision grade options, however, offer tighter tolerances and better surface finishes, making them suitable for high-precision applications where exact dimensions are crucial.
Question: Can I customize the dimensions of washers and collars?
Answer: Yes, many suppliers offer customizable options for washers and collars. You can specify the inner and outer diameters, thickness, and even special features like countersunk holes or flanged edges to meet specific application needs.
Question: What is the significance of surface treatments on metal washers and collars?
Answer: Surface treatments enhance the performance and longevity of washers and collars by providing additional properties such as corrosion resistance, hardness, or aesthetic appeal. Common treatments include:
Black Oxide: Increases corrosion resistance and reduces light reflection.
Nickel Plating: Provides a smooth, shiny finish with good corrosion resistance.
Anodizing: Commonly used on aluminum for enhanced corrosion resistance and coloring.
Question: How do I ensure the washers and collars meet my tolerance requirements?
Answer: Specify the tolerance levels when ordering. Standard options include:
Inner Diameter Tolerance: ±0.05 mm to +0.3 mm.
Outer Diameter Tolerance: ±0.1 mm to ±0.3 mm.
Thickness Tolerance: ±0.01 mm to ±0.3 mm.
Question: Are there any special types of washers and collars for specific applications?
Answer: Yes, there are various specialized types such as:
Countersunk Washers: Designed for use with countersunk screws, allowing the screw to sit flush with the surface.
Flanged Collars: Provide a larger bearing surface, which helps distribute the load over a larger area.
Hardened Washers: Suitable for high-load or high-wear applications due to their increased hardness.