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ASME Washers for Soft Material
Also known as Type B washers, these distribute your fastener's load over a larger surface area than other washers to limit damage to soft materials.
18-8 stainless steel washers have excellent corrosion resistance in most environments and may be mildly magnetic.
Zinc-plated steel washers are corrosion resistant in wet environments.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
| For Screw Size  | ASME Designation | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. 0 | Narrow | 0.068" | 0.125" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| No. 0 | Regular | 0.068" | 0.188" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| No. 0 | Wide | 0.068" | 0.250" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| No. 1 | Narrow | 0.084" | 0.156" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| No. 1 | Regular | 0.084" | 0.219" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| No. 1 | Wide | 0.084" | 0.281" | 0.028"-0.036" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| No. 2 | Narrow | 0.094" | 0.188" | 0.022"-0.028" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 2 | Regular | 0.094" | 0.250" | 0.028"-0.036" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 2 | Wide | 0.094" | 0.344" | 0.028"-0.036" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 4 | Narrow | 0.125" | 0.250" | 0.028"-0.036" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 4 | Regular | 0.125" | 0.375" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 4 | Wide | 0.125" | 0.438" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 6 | Narrow | 0.156" | 0.312" | 0.028"-0.036" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 6 | Regular | 0.156" | 0.438" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| No. 6 | Wide | 0.156" | 0.562" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 8 | Narrow | 0.188" | 0.375" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 8 | Regular | 0.188" | 0.500" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 8 | Wide | 0.188" | 0.625" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 10 | Narrow | 0.203" | 0.406" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 10 | Regular | 0.203" | 0.562" | 0.036"-0.045" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| No. 10 | Wide | 0.203" | 0.734" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 1/4" | Narrow | 0.281" | 0.500" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/4" | Regular | 0.281" | 0.734" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/4" | Wide | 0.281" | 1.000" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/16" | Narrow | 0.344" | 0.625" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 5/16" | Regular | 0.344" | 0.875" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/16" | Wide | 0.344" | 1.125" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 3/8" | Narrow | 0.406" | 0.734" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | Regular | 0.406" | 1.000" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | Wide | 0.406" | 1.250" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 7/16" | Narrow | 0.469" | 0.875" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/16" | Regular | 0.469" | 1.125" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/16" | Wide | 0.469" | 1.469" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1/2" | Narrow | 0.531" | 1.000" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1/2" | Regular | 0.531" | 1.250" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1/2" | Wide | 0.531" | 1.750" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 9/16" | Narrow | 0.594" | 1.125" | 0.056"-0.071" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 9/16" | Regular | 0.594" | 1.469" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 9/16" | Wide | 0.594" | 2.000" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 5/8" | Narrow | 0.656" | 1.250" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 5/8" | Regular | 0.656" | 1.750" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 5/8" | Wide | 0.656" | 2.250" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3/4" | Narrow | 0.812" | 1.375" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3/4" | Regular | 0.812" | 2.000" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3/4" | Wide | 0.812" | 2.500" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | Narrow | 0.938" | 1.469" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | Regular | 0.938" | 2.250" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | Wide | 0.938" | 2.750" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | Narrow | 1.062" | 1.750" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | Regular | 1.062" | 2.500" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | Wide | 1.062" | 3.000" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 1/8" | Narrow | 1.188" | 2.000" | 0.090"-0.112" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/8" | Regular | 1.188" | 2.750" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 1/8" | Wide | 1.188" | 3.250" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 1/4" | Narrow | 1.313" | 2.250" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/4" | Regular | 1.313" | 3.000" | 0.146"-0.174" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 1/4" | Wide | 1.313" | 3.500" | 0.234"-0.266" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| M2.5 | Narrow | 3.100mm | 5.900mm | 0.600mm-0.900mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M2.5 | Regular | 3.000mm | 7.700mm | 0.600mm-0.900mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M2.5 | Wide | 3.000mm | 9.700mm | 0.800mm-1.200mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M3 | Narrow | 3.500mm | 6.700mm | 0.600mm-0.900mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M3 | Regular | 3.500mm | 9.800mm | 0.800mm-1.200mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M3 | Wide | 3.500mm | 11.800mm | 1.000mm-1.400mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M4 | Narrow | 4.700mm | 9.800mm | 0.800mm-1.200mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M4 | Regular | 4.700mm | 11.800mm | 1.000mm-1.400mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M4 | Wide | 4.700mm | 15.800mm | 1.600mm-2.300mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M5 | Narrow | 5.600mm | 10.600mm | 1.000mm-1.400mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M5 | Regular | 5.600mm | 14.700mm | 1.200mm-1.750mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M5 | Wide | 5.600mm | 19.800mm | 1.600mm-2.300mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M6 | Narrow | 6.700mm | 12.700mm | 1.200mm-1.750mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M6 | Regular | 6.700mm | 18.600mm | 1.200mm-1.750mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M6 | Wide | 6.700mm | 25.000mm | 1.600mm-2.300mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M10 | Narrow | 10.900mm | 19.800mm | 1.600mm-2.300mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M10 | Regular | 10.900mm | 27.700mm | 2.000mm-2.800mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M10 | Wide | 10.900mm | 38.600mm | 2.500mm-3.500mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M12 | Narrow | 13.400mm | 24.900mm | 2.000mm-2.800mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M12 | Regular | 13.400mm | 33.700mm | 2.500mm-3.500mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M12 | Wide | 13.400mm | 43.600mm | 2.500mm-3.500mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M14 | Regular | 15.300mm | 38.600mm | 2.500mm-3.500mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M14 | Wide | 15.300mm | 49.500mm | 3.000mm-4.000mm | Not Rated | ASME B18.22M | 1 | 000000000 | 00000 |
| M16 | Narrow | 17.400mm | 31.700mm | 2.500mm-3.500mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M16 | Regular | 17.300mm | 43.600mm | 3.000mm-4.000mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M16 | Wide | 17.400mm | 55.500mm | 3.500mm-4.600mm | Not Rated | ASME B18.22M | 1 | 000000000 | 00000 |
| M20 | Narrow | 21.900mm | 38.400mm | 3.000mm-4.000mm | Not Rated | ASME B18.22M | 1 | 000000000 | 0000 |
| M20 | Regular | 22.000mm | 49.600mm | 3.500mm-4.600mm | Not Rated | ASME B18.22M | 1 | 000000000 | 00000 |
| M20 | Wide | 22.000mm | 65.000mm | 4.000mm-5.100mm | Not Rated | ASME B18.22M | 1 | 000000000 | 00000 |
| M24 | Regular | 25.700mm | 55.500mm | 4.000mm-5.100mm | Not Rated | ASME B18.22M | 1 | 000000000 | 00000 |