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Insulating Cup Washers

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Cupped Washers, also known as Insulator Washers, are designed to protect the head of a metal screw from electrical contact.

Our Cup Washer range is made from Nylon 6/6 that benefits from a UL94 V2 flame rating, as well as being corrosion resistant, and have resistance against oil and most chemicals.

This insulator washer range can accommodate the most common screw head styles, including; Cheese, Pan and Fillister.

  • Color: Natural

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34 results
Product SKUs information
Item Code Price range Availability Height Bore Diameter Inside Diameter Outside Diameter Bore Depth View
16CW004040 $0.0273 - $0.0375 27000 In stock
$0.2595 - $0.3561 6000 In stock
$0.0211 - $0.029 33000 In stock
16CW250040 $0.0329 - $0.045 7000 In stock
$0.0467 - $0.0642 3500 In stock
16CW008043 $0.0214 - $0.0293 83000 In stock
$0.0687 - $0.0943 9000 In stock
16CW010040 $0.0362 - $0.0496 24000 In stock
16CW006040 $0.0287 - $0.0393 54000 In stock
16CW008041 $0.0545 - $0.0748 7000 In stock
$0.1856 - $0.2545 Request the lead time here
$0.0198 - $0.0272 21000 In stock
16CW008040 $0.0348 - $0.0478 24000 In stock
$0.0553 - $0.0758 Request the lead time here
$0.0365 - $0.05 158000 In stock
$0.0878 - $0.1205 5000 In stock
$0.0218 - $0.0298 Request the lead time here
$0.0756 - $0.1037 Request the lead time here
0.5 in
0.626 in
0.343 in
0.874 in
0.378 in
$0.2855 - $0.3917 4500 In stock
0.26 in
1 in
$0.0362 - $0.0495 15000 In stock
0.287 in
0.535 in
0.256 in
0.594 in
0.248 in
  • of 2
Natural Nylon Finishing Washer - Bore Depth 3.0 mm | 0.118 in; Inside Diameter 2.9 mm | 0.114 in

16CW004040

Price Range
$0.0375 - $0.0273

Stock Levels
27000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.8 mm | 0.15 in; Inside Diameter 6.6 mm | 0.26 in

16CW250250

Price Range
$0.3561 - $0.2595

Stock Levels
6000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 5.5 mm | 0.217 in; Inside Diameter 2.9 mm | 0.114 in

16CW004257

Price Range
$0.029 - $0.0211

Stock Levels
33000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 6.3 mm | 0.248 in; Inside Diameter 6.5 mm | 0.256 in

16CW250040

Price Range
$0.045 - $0.0329

Stock Levels
7000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 6.4 mm | 0.252 in; Inside Diameter 8.7 mm | 0.343 in

16CW312375

Price Range
$0.0642 - $0.0467

Stock Levels
3500 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 4.6 mm | 0.181 in; Inside Diameter 4.4 mm | 0.173 in

16CW008043

Price Range
$0.0293 - $0.0214

Stock Levels
83000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 9.6 mm | 0.378 in; Inside Diameter 8.7 mm | 0.343 in

16CW312500

Price Range
$0.0943 - $0.0687

Stock Levels
9000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 4.8 mm | 0.189 in; Inside Diameter 4.9 mm | 0.193 in

16CW010040

Price Range
$0.0496 - $0.0362

Stock Levels
24000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.6 mm | 0.142 in; Inside Diameter 3.6 mm | 0.142 in

16CW006040

Price Range
$0.0393 - $0.0287

Stock Levels
54000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.3 mm | 0.13 in; Inside Diameter 4.3 mm | 0.169 in

16CW008041

Price Range
$0.0748 - $0.0545

Stock Levels
7000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 5.0 mm | 0.197 in; Inside Diameter 11.1 mm | 0.437 in

16CW437520

Price Range
$0.2545 - $0.1856

Stock Levels
Request the lead time here
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.1 mm | 0.122 in; Inside Diameter 8.1 mm | 0.319 in

16CW312050

Price Range
$0.0272 - $0.0198

Stock Levels
21000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 4.2 mm | 0.165 in; Inside Diameter 4.3 mm | 0.169 in

16CW008040

Price Range
$0.0478 - $0.0348

Stock Levels
24000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 16.5 mm | 0.65 in; Inside Diameter 6.5 mm | 0.256 in

16CW250042

Price Range
$0.0758 - $0.0553

Stock Levels
Request the lead time here
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.2 mm | 0.126 in; Inside Diameter 5.1 mm | 0.201 in

16CW010030

Price Range
$0.05 - $0.0365

Stock Levels
158000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 3.2 mm | 0.126 in; Inside Diameter 9.7 mm | 0.382 in

16CW375225

Price Range
$0.1205 - $0.0878

Stock Levels
5000 In stock
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Natural Nylon Finishing Washer - Bore Depth 2.4 mm | 0.094 in; Inside Diameter 4.7 mm | 0.185 in

16CW008042

Price Range
$0.0298 - $0.0218

Stock Levels
Request the lead time here
Attributes
  • Color
    Natural
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
  • Washer Shape
    Round
  • Washer Type
    Cup Washer
Cup Washer 8.7 mm 22.2 mm 12.7 mm 5/16 Nylon Black

16CW312500B

Price Range
$0.1037 - $0.0756

Stock Levels
Request the lead time here
Attributes
  • Bore Depth
    0.378 in
  • Bore Diameter
    0.626 in
  • Inside Diameter
    0.343 in
  • Outside Diameter
    0.874 in
  • Color
    Black
Cup Washer 6.6 mm 25.4 mm 5.0 mm 1/4 Nylon Black

16CW250250B

Price Range
$0.3917 - $0.2855

Stock Levels
4500 In stock
Attributes
  • Inside Diameter
    0.26 in
  • Outside Diameter
    1 in
  • Color
    Black
  • Full Material
    Polyamide 6/6
  • Material
    Nylon
Cup Washer 6.5 mm 15.1 mm 7.3 mm 1/4 Nylon Black

16CW250040B

Price Range
$0.0495 - $0.0362

Stock Levels
15000 In stock
Attributes
  • Bore Depth
    0.248 in
  • Bore Diameter
    0.535 in
  • Inside Diameter
    0.256 in
  • Outside Diameter
    0.594 in
  • Color
    Black