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About Washers
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Electrical-Insulating Sleeve Washers
Also known as shoulder or insulator washers, these nonmetal washers block electrical current and prevent galvanic corrosion from mating different types of metal.
Nylon 6/6 washers have good abrasion resistance. Exposure to moisture may cause them to expand.
PTFE washers have excellent chemical resistance and a slippery surface that resists wear in high-friction applications.
Ceramic washers withstand high temperatures and resist moisture as well as hydrochloric and nitric acid gases.
Hard fiber washers resist organic solvents and petroleum-based oil.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | ||||||||||||
| No. 2 | 0.090" | 0.181" | 0.120" | 0.047" | 0.172" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 00000 |
| No. 2 | 0.090" | 0.181" | 0.120" | 0.047" | 0.297" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 2 | 0.090" | 0.181" | 0.120" | 0.047" | 0.422" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 2 | 0.093" | 0.250" | 0.156" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 2 | 0.093" | 0.250" | 0.156" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.115" | 0.235" | 0.145" | 0.047" | 0.172" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.115" | 0.235" | 0.145" | 0.047" | 0.297" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.115" | 0.235" | 0.145" | 0.047" | 0.422" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.115" | 0.235" | 0.145" | 0.047" | 0.547" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.122" | 0.281" | 0.187" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 4 | 0.122" | 0.281" | 0.187" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.140" | 0.290" | 0.170" | 0.047" | 0.172" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.140" | 0.290" | 0.170" | 0.047" | 0.297" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.140" | 0.290" | 0.170" | 0.047" | 0.422" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.140" | 0.290" | 0.170" | 0.047" | 0.547" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.146" | 0.328" | 0.218" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 6 | 0.146" | 0.328" | 0.218" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.173" | 0.344" | 0.205" | 0.063" | 0.313" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.173" | 0.344" | 0.205" | 0.063" | 0.438" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.173" | 0.344" | 0.205" | 0.063" | 0.563" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.173" | 0.344" | 0.205" | 0.063" | 0.688" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.173" | 0.344" | 0.205" | 0.063" | 0.813" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.375" | 0.250" | 0.050" | 0.100" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.375" | 0.250" | 0.050" | 0.100" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.399" | 0.260" | 0.063" | 0.313" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.399" | 0.260" | 0.063" | 0.438" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.399" | 0.260" | 0.063" | 0.563" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.399" | 0.260" | 0.063" | 0.688" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.399" | 0.260" | 0.063" | 0.813" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.201" | 0.437" | 0.281" | 0.050" | 0.100" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 10 | 0.201" | 0.437" | 0.281" | 0.050" | 0.100" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.188" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.313" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.438" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.563" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.688" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.513" | 0.312" | 0.063" | 0.813" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.562" | 0.375" | 0.060" | 0.120" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.562" | 0.375" | 0.060" | 0.120" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| 5/16" | 0.320" | 0.620" | 0.360" | 0.063" | 0.188" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 5/16" | 0.320" | 0.620" | 0.360" | 0.063" | 0.438" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 5/16" | 0.320" | 0.620" | 0.360" | 0.063" | 0.563" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 5/16" | 0.320" | 0.620" | 0.360" | 0.063" | 0.688" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 5/16" | 0.320" | 0.625" | 0.360" | 0.063" | 0.313" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.750" | 0.500" | 0.060" | 0.120" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.750" | 0.500" | 0.060" | 0.120" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
PTFE Plastic | ||||||||||||
| No. 2 | 0.091" | 0.312" | 0.125" | 0.063" | 0.125" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 0000 |
| No. 4 | 0.115" | 0.200" | 0.136" | 0.030" | 0.060" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 0000 |
| No. 6 | 0.140" | 0.312" | 0.187" | 0.023" | 0.062" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 0000 |
| No. 8 | 0.169" | 0.375" | 0.265" | 0.049" | 0.094" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 0000 |
| No. 10 | 0.193" | 0.375" | 0.252" | 0.032" | 0.064" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
| 1/4" | 0.260" | 0.545" | 0.355" | 0.049" | 0.094" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
| 3/8" | 0.385" | 0.750" | 0.500" | 0.060" | 0.120" | Not Rated | 500° | Durometer 50D | White | 5 | 000000000 | 00000 |
Ceramic | ||||||||||||
| No. 6 | 0.150" | 0.500" | 0.281" | 0.125" | 0.187" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| No. 6 | 0.150" | 0.500" | 0.281" | 0.187" | 0.437" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| No. 8 | 0.175" | 0.625" | 0.406" | 0.125" | 0.187" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| No. 8 | 0.175" | 0.625" | 0.406" | 0.218" | 0.468" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.750" | 0.468" | 0.156" | 0.218" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.750" | 0.468" | 0.218" | 0.468" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.875" | 0.593" | 0.188" | 0.250" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
| 1/4" | 0.265" | 0.875" | 0.593" | 0.250" | 0.500" | Not Rated | 1700° | __ | White | 5 | 000000000 | 00000 |
Hard Fiber | ||||||||||||
| No. 2 | 0.090" | 0.250" | 0.154" | 0.030" | 0.055" | Not Rated | 230° | __ | Black | 50 | 000000000 | 00000 |
| No. 4 | 0.116" | 0.250" | 0.186" | 0.030" | 0.055" | Not Rated | 230° | __ | Black | 50 | 000000000 | 00000 |
| No. 6 | 0.142" | 0.313" | 0.186" | 0.040" | 0.070" | Not Rated | 230° | __ | Black | 50 | 000000000 | 0000 |
| No. 8 | 0.168" | 0.375" | 0.246" | 0.040" | 0.070" | Not Rated | 230° | __ | Black | 50 | 000000000 | 00000 |
| No. 10 | 0.194" | 0.375" | 0.312" | 0.040" | 0.070" | Not Rated | 230° | __ | Black | 50 | 000000000 | 00000 |
| 1/4" | 0.254" | 0.500" | 0.312" | 0.040" | 0.070" | Not Rated | 230° | __ | Black | 50 | 000000000 | 0000 |
| 3/8" | 0.380" | 0.625" | 0.437" | 0.060" | 0.100" | Not Rated | 230° | __ | Black | 50 | 000000000 | 00000 |
Extra-Tall Electrical-Insulating
Rolled-Collar Sleeve Washers
The extra-tall sleeve extends into holes to provide more protection than other rolled-collar washers. As you tighten your screw, the rolled collar compresses under the head to create an insulating barrier between a screw shank and a mating surface. These nylon washers block electrical current and prevent galvanic corrosion from mating different types of metal. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||||
| No. 10 | 0.194" | 0.300" | 0.228" | 0.330" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 00000 |
| 1/4" | 0.252" | 0.365" | 0.292" | 0.350" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 1/4" | 0.252" | 0.365" | 0.292" | 0.600" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 5/16" | 0.316" | 0.460" | 0.356" | 0.355" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 3/8" | 0.379" | 0.535" | 0.419" | 0.375" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 1/2" | 0.504" | 0.645" | 0.548" | 0.655" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 5/8" | 0.630" | 0.800" | 0.679" | 0.410" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 3/4" | 0.754" | 0.935" | 0.810" | 0.920" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
Electrical-Insulating Rolled-Collar Sleeve Washers
As you tighten your screw, the rolled collar compresses under the head to create an insulating barrier between a screw shank and a mating surface. These nylon washers block electrical current and prevent galvanic corrosion from mating different types of metal. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||||
| No. 2 | 0.088" | 0.175" | 0.112" | 0.065" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 00000 |
| No. 4 | 0.116" | 0.195" | 0.140" | 0.080" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| No. 6 | 0.142" | 0.225" | 0.172" | 0.095" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| No. 8 | 0.168" | 0.270" | 0.198" | 0.115" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| No. 10 | 0.194" | 0.300" | 0.228" | 0.115" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| No. 12 | 0.220" | 0.330" | 0.254" | 0.125" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 1/4" | 0.252" | 0.365" | 0.292" | 0.125" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 3/8" | 0.379" | 0.535" | 0.419" | 0.160" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 0000 |
| 1/2" | 0.504" | 0.645" | 0.548" | 0.195" | -40° | 180° | Rockwell R118 | Off-White | 25 | 000000000 | 00000 |
Electrical-Insulating Cup Sleeve Washers
These nylon washers have a flat bottom and high walls to protect metal screw heads from electrical current and prevent galvanic corrosion from mating different types of metal. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Cup ID | Inside Dp. | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||||||
| No. 4 | 0.115" | 0.305" | 0.245" | 0.117" | 0.040" | 0.157" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 00000 |
| No. 6 | 0.140" | 0.360" | 0.300" | 0.142" | 0.040" | 0.182" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.171" | 0.414" | 0.354" | 0.166" | 0.040" | 0.206" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.194" | 0.470" | 0.410" | 0.190" | 0.040" | 0.230" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
| 1/4" | 0.257" | 0.595" | 0.535" | 0.247" | 0.042" | 0.289" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
Sleeve Washer Assortments
Also known as shoulder and insulator washers, these nylon 6/6 washers block electrical current and prevent corrosion from mating different types of metal. They have good abrasion resistance. Exposure to moisture may cause them to expand.
| Number of Pieces | Sizes Included | Temperature Range, °F | Color | Container Type | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
Nylon 6/6 Plastic | ||||||
| 245 | For No. 2 to 5/16" Screw Sizes | -40° to 185° | Off-White | Plastic Box | 000000000 | 000000 |