About 8,000 types of vacuum components in stock at all times.Business Hours: 9:00-18:00, excluding weekends and holidays

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Washers (precision cleaned) Product List Vented Screw

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Products 295Matter (281 ~295 )

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  • Product code :78621
    Model:WF-31-A

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Silver-coated
    Inch / mm inch
    size 5/16
    Material SUS 18-8
    Inside diameter (mm) 8.3312
    The outer diameter (mm) 14.2748
    type Flat washer
    300JPY (with tax 330JPY)
    Inquiry for this product
  • Product code :78622
    Model:WF-31-C

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 60
    Processing method Molybdenum disulfide coat
    Inch / mm inch
    size 5/16
    Material SUS 18-8
    Inside diameter (mm) 8.3312
    The outer diameter (mm) 14.2748
    type Flat washer
    110JPY (with tax 121JPY)
    Inquiry for this product
  • Product code :78623
    Model:WF-31-EP

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method 電解研磨
    Inch / mm inch
    size 5/16
    Material SUS 18-8
    Inside diameter (mm) 8.3312
    The outer diameter (mm) 14.2748
    type Flat washer
    310JPY (with tax 341JPY)
    Inquiry for this product
  • Product code :78624
    Model:WF-31-K

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Nickel coat
    Inch / mm inch
    size 5/16
    Material SUS 18-8
    Inside diameter (mm) 8.3312
    The outer diameter (mm) 14.2748
    type Flat washer
    270JPY (with tax 297JPY)
    Inquiry for this product
  • Product code :78625
    Model:WF-31-W

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Tungsten Court
    Inch / mm inch
    size 5/16
    Material SUS 18-8
    Inside diameter (mm) 8.3312
    The outer diameter (mm) 14.2748
    type Flat washer
    430JPY (with tax 473JPY)
    Inquiry for this product
  • Product code :78626
    Model:WF-38

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 130
    Processing method Nothing
    Inch / mm inch
    size 3/8
    Material SUS 18-8
    Inside diameter (mm) 9.906
    The outer diameter (mm) 15.875
    type Flat washer
    50JPY (with tax 55JPY)
    Inquiry for this product
  • Product code :78627
    Model:WF-38-A

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Silver-coated
    Inch / mm inch
    size 3/8
    Material SUS 18-8
    Inside diameter (mm) 9.906
    The outer diameter (mm) 15.875
    type Flat washer
    430JPY (with tax 473JPY)
    Inquiry for this product
  • Product code :78628
    Model:WF-38-C

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 70
    Processing method Molybdenum disulfide coat
    Inch / mm inch
    size 3/8
    Material SUS 18-8
    Inside diameter (mm) 9.906
    The outer diameter (mm) 15.875
    type Flat washer
    100JPY (with tax 110JPY)
    Inquiry for this product
  • Product code :78629
    Model:WF-38-K

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Nickel coat
    Inch / mm inch
    size 3/8
    Material SUS 18-8
    Inside diameter (mm) 9.906
    The outer diameter (mm) 15.875
    type Flat washer
    290JPY (with tax 319JPY)
    Inquiry for this product
  • Product code :78630
    Model:WF-38-W

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Tungsten Court
    Inch / mm inch
    size 3/8
    Material SUS 18-8
    Inside diameter (mm) 9.906
    The outer diameter (mm) 15.875
    type Flat washer
    450JPY (with tax 495JPY)
    Inquiry for this product
  • Product code :78631
    Model:WF-50

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 90
    Processing method Nothing
    Inch / mm inch
    size 1/2
    Material SUS 18-8
    Inside diameter (mm) 13.081
    The outer diameter (mm) 22.225
    type Flat washer
    80JPY (with tax 88JPY)
    Inquiry for this product
  • Product code :78632
    Model:WF-50-A

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Silver-coated
    Inch / mm inch
    size 1/2
    Material SUS 18-8
    Inside diameter (mm) 13.081
    The outer diameter (mm) 22.225
    type Flat washer
    400JPY (with tax 440JPY)
    Inquiry for this product
  • Product code :78633
    Model:WF-50-C

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 60
    Processing method Molybdenum disulfide coat
    Inch / mm inch
    size 1/2
    Material SUS 18-8
    Inside diameter (mm) 13.081
    The outer diameter (mm) 22.225
    type Flat washer
    120JPY (with tax 132JPY)
    Inquiry for this product
  • Product code :78634
    Model:WF-50-K

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Nickel coat
    Inch / mm inch
    size 1/2
    Material SUS 18-8
    Inside diameter (mm) 13.081
    The outer diameter (mm) 22.225
    type Flat washer
    380JPY (with tax 418JPY)
    Inquiry for this product
  • Product code :78635
    Model:WF-50-W

    ▼UC Components Pre-Cleaned and Pre-Baked Products for Vacuum Equipment (RediVac®)
    We offer precision-cleaned parts that are ready to use.
    Pre-baked products are also available
    A wide selection of bolts with air holes for vacuum applications
    Choose the right part from a wide selection of bolts, nuts, washers, O-rings, and more!

    ▼The following types are standardized
    Material: SUS304/A2, SUS316/A4, A4A286, Nickel 200, Aluminum, etc.
    Coating: Uncoated, electropolished, nickel coated, tungsten coated, molybdenum disulfide coated, gold coated, silver coated, silver chromate coated
    Vented Bolts: side hole, through hole in the center

    ▼Others
    If you have any questions about our products, please feel free to contact us from the "Inquiry" button.

    For UC Components products, MOQ quantity may be adjusted by bulk purchase.
    Please contact us separately in the following cases.

    -Products with MOQs of 26 or more
    -When you are considering combining other UC Components products.
    -When your order is due several months or more in advance.


    Precision Cleaning Request

    Air hole Yes (Washer)
    Minimum order 25
    Processing method Tungsten Court
    Inch / mm inch
    size 1/2
    Material SUS 18-8
    Inside diameter (mm) 13.081
    The outer diameter (mm) 22.225
    type Flat washer
    530JPY (with tax 583JPY)
    Inquiry for this product
Shipping accepted on the day on orders until 17:00 Hours 9:00 to 18:00 except Saturdays, Sundays, and holidays
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