Washer Type Washer Type |
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| Flat | Split Lock |
For Screw Size For Screw Size |
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OD OD |
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ID ID |
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Thickness Thickness |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Washers
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General Purpose Washers
Copper, brass, and silicon bronze washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive. Silicon bronze washers are stronger than copper and brass.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Pkg. Qty. | Pkg. | |
Silicon Bronze | |||||||
|---|---|---|---|---|---|---|---|
| No. 6 | 0.147" | 0.375" | 0.025"-0.039" | Not Rated | 100 | 000000000 | 00000 |
| No. 8 | 0.172" | 0.375" | 0.025"-0.039" | Not Rated | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.438" | 0.029"-0.043" | Not Rated | 100 | 000000000 | 0000 |
| No. 12 | 0.228" | 0.500" | 0.033"-0.047" | Not Rated | 50 | 000000000 | 00000 |
| 1/4" | 0.260" | 0.688" | 0.030"-0.050" | Not Rated | 50 | 000000000 | 00000 |
| 5/16" | 0.340" | 0.750" | 0.052"-0.072" | Not Rated | 25 | 000000000 | 00000 |
| 5/16" | 0.340" | 0.875" | 0.052"-0.072" | Not Rated | 10 | 000000000 | 0000 |
| 3/8" | 0.392" | 0.875" | 0.052"-0.072" | Not Rated | 25 | 000000000 | 00000 |
| 3/8" | 0.392" | 1.000" | 0.052"-0.072" | Not Rated | 10 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.125" | 0.052"-0.072" | Not Rated | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.250" | 0.068"-0.088" | Not Rated | 10 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.500" | 0.081"-0.101" | Not Rated | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.875" | 0.092"-0.112" | Not Rated | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.099"-0.129" | Not Rated | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.113"-0.143" | Not Rated | 1 | 000000000 | 00000 |
Split Lock Washers
As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.
Bronze washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Bronze | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 2 | 0.094" | 0.172" | 0.020" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 3 | 0.107" | 0.195" | 0.025" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 4 | 0.114" | 0.209" | 0.025" | Rockwell B90 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
| No. 4 | 0.120" | 0.209" | 0.025" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 6 | 0.141" | 0.250" | 0.031" | Rockwell B90 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
| No. 6 | 0.148" | 0.250" | 0.031" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.167" | 0.293" | 0.040" | Rockwell B90 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.334" | 0.047" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 12 | 0.227" | 0.377" | 0.056" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.487" | 0.062" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 5/16" | 0.322" | 0.583" | 0.078" | Rockwell B90 | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 3/8" | 0.385" | 0.680" | 0.094" | Rockwell B90 | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 7/16" | 0.450" | 0.776" | 0.109" | Rockwell B90 | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.512" | 0.869" | 0.125" | Rockwell B90 | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 5/8" | 0.641" | 1.073" | 0.156" | Rockwell B90 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/4" | 0.766" | 1.265" | 0.188" | Rockwell B90 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1" | 1.003" | 1.656" | 0.250" | Rockwell B90 | ASME B18.21.1 | 5 | 000000000 | 00000 |