For Screw Size For Screw Size |
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Material Material |
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Finish Finish |
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OD OD |
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ID ID |
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Maximum Thickness Maximum Thickness |
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Minimum Thickness Minimum Thickness |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Washers
More
Oversized Washers
Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.
18-8 stainless steel and 17-4 PH stainless steel washers have good chemical resistance and may be mildly magnetic. 17-4 PH stainless steel washers are stronger than 18-8 stainless steel washers. Black-oxide steel washers have mild corrosion resistance in dry environments.
Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.
Brass washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.
Black Corrosion-Resistant-Coated Steel washers resist chemicals and withstand 1,000 hours of salt spray. They’re also known as black luster washers.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 0 | 0.078" | 0.156" | 0.005"-0.024" | Rockwell B83 | __ | 25 | 000000000 | 00000 |
| No. 2 | 0.094" | 0.188" | 0.014"-0.033" | Rockwell B83 | __ | 25 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.250" | 0.049"-0.068" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.064"-0.083" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.312" | 0.049"-0.068" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.064"-0.083" | Rockwell B83 | __ | 5 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.375" | 0.049"-0.068" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.064"-0.083" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.500" | 0.080"-0.099" | Rockwell B83 | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.500" | 0.064"-0.083" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.625" | 0.079"-0.098" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.750" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.750" | 0.079"-0.098" | Rockwell B83 | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.875" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.000" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.000" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.105"-0.130" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| 7/16" | 0.469" | 1.000" | 0.105"-0.130" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 7/16" | 0.469" | 1.000" | 0.168"-0.193" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.168"-0.192" | Rockwell B83 | __ | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.125" | 0.105"-0.130" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.125" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.188" | 0.168"-0.193" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.198"-0.223" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.375" | 0.105"-0.130" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.375" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.625" | 0.136"-0.161" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.625" | 0.230"-0.255" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.198"-0.223" | Rockwell B83 | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.906" | 1.750" | 0.136"-0.161" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.906" | 1.750" | 0.230"-0.255" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.168"-0.193" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.230"-0.255" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1" | 1.031" | 2.000" | 0.261"-0.286" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1 1/8" | 1.156" | 2.250" | 0.199"-0.224" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 1 1/4" | 1.281" | 2.500" | 0.261"-0.286" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
17-4 PH Stainless Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.105"-0.130" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.177"-0.197" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 1/4" | 0.313" | 0.750" | 0.068"-0.088" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.105"-0.130" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.875" | 0.105"-0.130" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.125" | 0.105"-0.130" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.125" | 0.177"-0.197" | Rockwell C35 | __ | 1 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.375" | 0.105"-0.130" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.177"-0.197" | Rockwell C35 | __ | 1 | 000000000 | 00000 |
| 3/4" | 0.781" | 1.625" | 0.136"-0.161" | Rockwell C35 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.625" | 0.235"-0.255" | Rockwell C35 | __ | 1 | 000000000 | 00000 |
| 7/8" | 0.906" | 1.750" | 0.136"-0.161" | Rockwell C35 | __ | 1 | 000000000 | 00000 |
| 1" | 1.031" | 2.000" | 0.271"-0.291" | Rockwell C35 | __ | 1 | 000000000 | 00000 |
Black-Oxide Steel | ||||||||
| No. 0 | 0.062" | 0.125" | 0.005"-0.024" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 1 | 0.078" | 0.156" | 0.005"-0.024" | Not Rated | __ | 25 | 000000000 | 00000 |
| No. 2 | 0.094" | 0.188" | 0.014"-0.033" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.250" | 0.049"-0.068" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.068"-0.088" | Rockwell 15N85 | __ | 25 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.312" | 0.049"-0.068" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.068"-0.088" | Rockwell 15N85 | __ | 25 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.562" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.375" | 0.049"-0.068" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.068"-0.088" | Rockwell 15N85 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.750" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.500" | 0.080"-0.099" | Not Rated | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 1.000" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.500" | 0.064"-0.083" | Not Rated | __ | 25 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.168"-0.193" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.750" | 0.130"-0.150" | Not Rated | __ | 10 | 000000000 | 00000 |
| 1/4" | 0.281" | 1.000" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 00000 |
| 1/4" | 0.281" | 1.500" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.625" | 0.079"-0.098" | Not Rated | __ | 25 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.750" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.168"-0.193" | Not Rated | __ | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.875" | 0.130"-0.150" | Not Rated | __ | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 1.250" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.750" | 0.079"-0.098" | Not Rated | __ | 25 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.875" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.000" | 0.105"-0.130" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.168"-0.193" | Not Rated | __ | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.625" | 0.120"-0.130" | Not Rated | __ | 10 | 000000000 | 00000 |
| 7/16" | 0.469" | 1.000" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 00000 |
| 7/16" | 0.469" | 1.000" | 0.168"-0.193" | Not Rated | __ | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.250" | 0.168"-0.193" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.168"-0.192" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.125" | 0.105"-0.130" | Not Rated | __ | 25 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.125" | 0.168"-0.193" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.375" | 0.146"-0.166" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.500" | 0.198"-0.233" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 2.000" | 0.120"-0.130" | Not Rated | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.198"-0.223" | Not Rated | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.105"-0.130" | Not Rated | __ | 10 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.168"-0.193" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.500" | 0.198"-0.233" | Not Rated | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.750" | 0.146"-0.166" | Not Rated | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.719" | 1.250" | 0.230"-0.255" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.625" | 0.136"-0.161" | Not Rated | __ | 10 | 000000000 | 00000 |
| 3/4" | 0.781" | 1.625" | 0.230"-0.255" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.875" | 0.230"-0.255" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.198"-0.223" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.240"-0.260" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.844" | 1.500" | 0.230"-0.255" | Not Rated | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.906" | 1.750" | 0.136"-0.161" | Not Rated | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.906" | 1.750" | 0.230"-0.255" | Not Rated | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.906" | 1.828" | 0.230"-0.255" | Not Rated | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.906" | 2.125" | 0.293"-0.318" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.168"-0.193" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1" | 1.031" | 2.000" | 0.230"-0.255" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.261"-0.286" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.240"-0.260" | Not Rated | __ | 1 | 000000000 | 00000 |
| 1" | 1.063" | 2.500" | 0.293"-0.318" | Not Rated | __ | 1 | 000000000 | 00000 |
| 1 1/8" | 1.156" | 2.250" | 0.199"-0.224" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1 1/4" | 1.281" | 2.500" | 0.271"-0.291" | Rockwell 15N85 | __ | 1 | 000000000 | 0000 |
| 1 1/2" | 1.563" | 2.750" | 0.355"-0.380" | Not Rated | __ | 1 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.090"-0.108" | Rockwell C43 | __ | 100 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.090"-0.108" | Rockwell C43 | __ | 50 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.110"-0.126" | Rockwell C43 | __ | 50 | 000000000 | 00000 |
| 7/16" | 0.469" | 0.922" | 0.110"-0.126" | Rockwell C43 | __ | 25 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.190"-0.208" | Rockwell C43 | __ | 25 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.172" | 0.168"-0.191" | Rockwell C43 | __ | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.206"-0.229" | Rockwell C43 | __ | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.206"-0.229" | Rockwell C43 | __ | 10 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.235"-0.264" | Rockwell C43 | __ | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.235"-0.264" | Rockwell C43 | __ | 5 | 000000000 | 0000 |
| 1 1/8" | 1.188" | 2.250" | 0.235"-0.264" | Rockwell C43 | __ | 5 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 2.500" | 0.235"-0.264" | Rockwell C43 | __ | 5 | 000000000 | 00000 |
| 1 3/8" | 1.438" | 2.750" | 0.235"-0.264" | Rockwell C43 | __ | 1 | 000000000 | 0000 |
| 1 1/2" | 1.562" | 3.000" | 0.235"-0.264" | Rockwell C43 | __ | 1 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | ||||||||
| 1/2" | 0.562" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 00000 |
| 5/8" | 0.688" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 00000 |
| 3/4" | 0.812" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 00000 |
| 1" | 1.062" | 3.250" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 4.000" | 0.485"-0.515" | Rockwell B40 | __ | 1 | 000000000 | 00000 |
Steel | ||||||||
| No. 10 | 0.203" | 0.500" | 0.089"-0.099" | Rockwell B84 | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.120"-0.130" | Rockwell B84 | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.750" | 0.120"-0.130" | Rockwell B84 | __ | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.875" | 0.120"-0.130" | Rockwell B84 | __ | 10 | 000000000 | 0000 |
| 7/16" | 0.469" | 1.000" | 0.151"-0.161" | Rockwell B84 | __ | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.000" | 0.183"-0.193" | Rockwell B84 | __ | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.250" | 0.245"-0.255" | Rockwell B84 | __ | 5 | 000000000 | 00000 |
| 3/4" | 0.781" | 1.500" | 0.245"-0.255" | Rockwell B84 | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.906" | 1.750" | 0.245"-0.255" | Rockwell B84 | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.308"-0.318" | Rockwell B84 | __ | 1 | 000000000 | 0000 |
| 1 1/8" | 1.156" | 2.250" | 0.308"-0.318" | Rockwell B84 | __ | 1 | 000000000 | 0000 |
| 1 1/4" | 1.281" | 2.250" | 0.308"-0.318" | Rockwell B84 | __ | 1 | 000000000 | 0000 |
Brass | ||||||||
| No. 2 | 0.094" | 0.188" | 0.014"-0.033" | Rockwell B60 | __ | 25 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.250" | 0.049"-0.068" | Rockwell B60 | __ | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.312" | 0.049"-0.068" | Rockwell B60 | __ | 10 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.375" | 0.049"-0.068" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.064"-0.083" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.500" | 0.079"-0.099" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.500" | 0.064"-0.083" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.167"-0.193" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.625" | 0.079"-0.098" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.750" | 0.167"-0.193" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.750" | 0.079"-0.098" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.875" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.000" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.167"-0.193" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.167"-0.192" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.125" | 0.105"-0.130" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.125" | 0.167"-0.193" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.198"-0.223" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.105"-0.130" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.167"-0.193" | Rockwell B60 | __ | 5 | 000000000 | 00000 |
| 3/4" | 0.781" | 1.625" | 0.136"-0.161" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.781" | 1.625" | 0.230"-0.255" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.198"-0.223" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.906" | 1.750" | 0.136"-0.161" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.906" | 1.750" | 0.230"-0.255" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.167"-0.193" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
| 1" | 1.031" | 2.000" | 0.261"-0.286" | Rockwell B60 | __ | 1 | 000000000 | 0000 |
Black Corrosion-Resistant-Coated Steel | ||||||||
| 1/4" | 0.313" | 0.750" | 0.090"-0.110" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.090"-0.110" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.110"-0.126" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.110"-0.126" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1/2" | 0.563" | 1.375" | 0.156"-0.188" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.500" | 0.156"-0.188" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.170"-0.195" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3/4" | 0.813" | 2.000" | 0.170"-0.195" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.235"-0.265" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1" | 1.063" | 2.500" | 0.235"-0.265" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
Metric Oversized Washers
Steel
Black-Oxide Steel
Zinc-Plated Steel
Black Ultra-Corrosion-Resistant Coated Steel
Blue-Dyed Steel
Stainless Steel
Black-Oxide Stainless Steel
Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses. Use them to cover oversized holes, hold heavy fastening loads, or as spacers and levelers.
Plain steel washers are stronger, more wear resistant, and less costly than zinc-plated steel and stainless steel washers. They should not be used in wet or corrosive environments because they easily rust. Black-oxide steel washers have a matte-black finish that prevents corrosion in dry environments. Zinc-plated steel washers have an outer layer of zinc that prevents the steel from rusting in wet areas. Compared to stainless steel, they're stronger, more wear resistant, and less costly, but not as corrosion resistant. Avoid exposing them to salt water and chemicals. Blue-dyed steel washers have a unique color so you can tell they're metric at a glance.
Stainless steel washers are more corrosion resistant than steel washers, and almost as strong. Use them in damp and washdown applications without worrying about rust. 18-8 stainless steel and 17-7 PH stainless steel washers have similar qualities to one another, except 17-7 PH stainless steel washers are stronger. Black-oxide 18-8 stainless steel washers resist corrosion just as well as regular 18-8 stainless steel washers and have a matte-black finish. 316 stainless steel washers stand up to salt water, chlorine solutions, and other chemicals without rusting. Bumax 88 stainless steel washers are the most corrosion resistant washers in our offering. They're commonly used in marine environments and chemical-processing plants.
Washers that meet DIN and ISO specifications, meet international standards for washer dimensions. ISO 8738 is formerly DIN 1440. ISO 7093 is formerly DIN 9021.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thick., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M3 | 3.0 | 6.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 00000 |
| M4 | 4.0 | 8.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
| M5 | 5.0 | 10.0 | 0.7-0.9 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
| M5 | 5.5 | 18.0 | 1.7-2.3 | Rockwell B50 | DIN 440-R | 100 | 000000000 | 00000 |
| M6 | 6.0 | 12.0 | 1.3-1.7 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 17.0 | 2.7-3.3 | Rockwell C35 | DIN 6340 | 50 | 000000000 | 00000 |
| M6 | 6.6 | 22.0 | 1.7-2.3 | Rockwell B50 | DIN 440-R | 25 | 000000000 | 0000 |
| M7 | 7.0 | 14.0 | 1.3-1.7 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 0000 |
| M8 | 8.0 | 16.0 | 1.8-2.2 | Rockwell B76 | DIN 1440, ISO 8738 | 100 | 000000000 | 00000 |
| M8 | 8.4 | 23.0 | 3.7-4.3 | Rockwell C35 | DIN 6340 | 25 | 000000000 | 00000 |
| M8 | 9.0 | 28.0 | 2.4-3.6 | Rockwell B50 | DIN 440-R | 10 | 000000000 | 0000 |
| M10 | 10.0 | 20.0 | 2.2-2.8 | Rockwell B76 | DIN 1440, ISO 8738 | 50 | 000000000 | 00000 |
| M10 | 10.5 | 28.0 | 3.7-4.3 | Rockwell C35 | DIN 6340 | 10 | 000000000 | 0000 |
| M10 | 11.0 | 34.0 | 2.4-3.6 | Rockwell B50 | DIN 440-R | 25 | 000000000 | 00000 |
| M12 | 12.0 | 25.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
| M12 | 13.0 | 35.0 | 4.4-5.6 | Rockwell C35 | DIN 6340 | 10 | 000000000 | 00000 |
| M12 | 13.5 | 44.0 | 3.4-4.6 | Rockwell B50 | DIN 440-R | 5 | 000000000 | 0000 |
| M14 | 14.0 | 28.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
| M16 | 16.0 | 28.0 | 2.7-3.3 | Rockwell B76 | DIN 1440, ISO 8738 | 25 | 000000000 | 00000 |
| M16 | 17.0 | 45.0 | 5.4-6.6 | Rockwell C35 | DIN 6340 | 5 | 000000000 | 00000 |
| M16 | 17.5 | 56.0 | 4.0-6.0 | Rockwell B50 | DIN 440-R | 5 | 000000000 | 00000 |
| M18 | 18.0 | 30.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 0000 |
| M20 | 20.0 | 32.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 0000 |
| M20 | 21.0 | 50.0 | 5.4-6.6 | Rockwell C35 | DIN 6340 | 5 | 000000000 | 00000 |
| M20 | 22.0 | 72.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
| M22 | 22.0 | 34.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 00000 |
| M22 | 24.0 | 80.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
| M24 | 24.0 | 38.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 10 | 000000000 | 00000 |
| M24 | 25.0 | 60.0 | 7.0-9.0 | Rockwell C35 | DIN 6340 | 1 | 000000000 | 0000 |
| M24 | 26.0 | 85.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
| M25 | 25.0 | 40.0 | 3.7-4.3 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 0000 |
| M26 | 26.0 | 40.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 0000 |
| M27 | 30.0 | 98.0 | 5.0-7.0 | Rockwell B50 | DIN 440-R | 1 | 000000000 | 0000 |
| M28 | 28.0 | 42.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 5 | 000000000 | 00000 |
| M30 | 30.0 | 45.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 1 | 000000000 | 0000 |
| M30 | 31.0 | 68.0 | 9.0-11.0 | Rockwell C35 | DIN 6340 | 1 | 000000000 | 0000 |
| M32 | 32.0 | 50.0 | 4.4-5.6 | Rockwell B76 | DIN 1440, ISO 8738 | 1 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
| M3 | 3.2 | 8.0 | 1.5-2.4 | Rockwell 15N80 | __ | 25 | 000000000 | 00000 |
| M3 | 3.2 | 12.0 | 2.5-3.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M4 | 4.3 | 10.0 | 1.5-2.4 | Rockwell 15N80 | __ | 25 | 000000000 | 00000 |
| M4 | 4.3 | 14.0 | 2.5-3.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M5 | 5.3 | 11.0 | 1.5-2.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 3.0-3.9 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M6 | 6.4 | 13.0 | 2.0-2.9 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M6 | 6.4 | 18.0 | 4.0-4.9 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M8 | 8.4 | 16.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M10 | 10.5 | 19.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M10 | 10.5 | 23.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M12 | 13.0 | 22.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M12 | 13.0 | 26.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M14 | 15.0 | 25.0 | 2.5-3.4 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M14 | 15.0 | 27.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M16 | 17.0 | 28.0 | 3.0-3.9 | Rockwell 15N80 | __ | 10 | 000000000 | 0000 |
| M16 | 17.0 | 32.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M20 | 21.0 | 35.0 | 3.0-3.9 | Rockwell 15N80 | __ | 10 | 000000000 | 00000 |
| M20 | 21.0 | 35.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M24 | 25.0 | 40.0 | 3.5-4.4 | Rockwell 15N80 | __ | 5 | 000000000 | 0000 |
| M24 | 25.0 | 43.0 | 6.0-6.9 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M30 | 31.0 | 44.0 | 3.5-4.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M30 | 31.0 | 48.0 | 6.0-6.9 | Rockwell 15N80 | __ | 1 | 000000000 | 0000 |
| M36 | 37.0 | 50.0 | 4.5-5.4 | Rockwell 15N80 | __ | 5 | 000000000 | 00000 |
| M36 | 37.0 | 50.0 | 7.0-7.9 | Rockwell 15N80 | __ | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
| M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.9-1.1 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 12.0 | 1.4-1.8 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 1.8-2.2 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 17.0 | 2.7-3.3 | Rockwell B76 | DIN 7349 | 100 | 000000000 | 00000 |
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 0000 |
| M8 | 8.4 | 21.0 | 3.7-4.3 | Rockwell B76 | DIN 7349 | 50 | 000000000 | 00000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B56 | DIN 9021 | 100 | 000000000 | 00000 |
| M10 | 10.5 | 25.0 | 3.7-4.3 | Rockwell B76 | DIN 7349 | 50 | 000000000 | 00000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B56 | DIN 9021 | 50 | 000000000 | 00000 |
| M12 | 13.0 | 30.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 0000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B56 | DIN 9021 | 25 | 000000000 | 00000 |
| M14 | 15.0 | 36.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 00000 |
| M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 00000 |
| M16 | 17.0 | 40.0 | 5.4-6.6 | Rockwell B76 | DIN 7349 | 10 | 000000000 | 00000 |
| M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B56 | DIN 9021 | 25 | 000000000 | 00000 |
| M18 | 19.0 | 44.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 0000 |
| M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B56 | DIN 9021 | 10 | 000000000 | 00000 |
| M20 | 21.0 | 44.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 00000 |
| M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B56 | DIN 9021 | 10 | 000000000 | 00000 |
| M22 | 23.0 | 50.0 | 7.0-9.0 | Rockwell B76 | DIN 7349 | 5 | 000000000 | 00000 |
| M24 | 25.0 | 50.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
| M24 | 26.8 | 72.0 | 4.0-6.0 | Rockwell B53 | DIN 9021 | 1 | 000000000 | 0000 |
| M27 | 28.0 | 60.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
| M30 | 31.0 | 68.0 | 9.0-11.0 | Rockwell B76 | DIN 7349 | 1 | 000000000 | 0000 |
Black Corrosion-Resistant-Coated Steel | ||||||||
| M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B56 | DIN 9021, ISO 7093 | 5 | 000000000 | 00000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B56 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
| M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B56 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
Blue-Dyed Steel | ||||||||
| M6 | 7.0 | 13.0 | 2.7-4.0 | Rockwell C38 | __ | 25 | 000000000 | 00000 |
| M8 | 9.0 | 19.0 | 2.7-4.0 | Rockwell C38 | __ | 50 | 000000000 | 00000 |
| M10 | 11.0 | 20.0 | 3.0-4.2 | Rockwell C38 | __ | 25 | 000000000 | 00000 |
| M12 | 14.0 | 25.0 | 3.1-4.2 | Rockwell C38 | __ | 10 | 000000000 | 0000 |
| M16 | 18.0 | 32.0 | 3.1-4.2 | Rockwell C38 | __ | 5 | 000000000 | 0000 |
| M20 | 22.0 | 39.0 | 3.1-4.2 | Rockwell C38 | __ | 5 | 000000000 | 0000 |
| M24 | 26.0 | 44.0 | 3.4-4.6 | Rockwell C38 | __ | 5 | 000000000 | 00000 |
| M30 | 33.0 | 60.0 | 3.4-4.6 | Rockwell C38 | __ | 1 | 000000000 | 0000 |
| M36 | 39.0 | 71.0 | 4.1-4.6 | Rockwell C38 | __ | 1 | 000000000 | 0000 |
18-8 Stainless Steel | ||||||||
| M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B75 | DIN 9021 | 100 | 000000000 | 0000 |
| M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 8.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.9-1.1 | Not Rated | DIN 7349 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 12.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M4 | 4.3 | 10.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 12.0 | 1.4-1.8 | Not Rated | DIN 7349 | 100 | 000000000 | 00000 |
| M4 | 4.3 | 14.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M5 | 5.3 | 11.0 | 1.5-2.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B52 | DIN 9021 | 100 | 000000000 | 00000 |
| M5 | 5.3 | 15.0 | 1.8-2.2 | Not Rated | DIN 7349 | 100 | 000000000 | 00000 |
| M5 | 5.3 | 15.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M6 | 6.4 | 13.0 | 2.0-2.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M6 | 6.4 | 17.0 | 2.7-3.3 | Not Rated | DIN 7349 | 50 | 000000000 | 00000 |
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B52 | DIN 9021 | 50 | 000000000 | 00000 |
| M6 | 6.4 | 18.0 | 4.0-4.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 00000 |
| M8 | 8.4 | 16.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M8 | 8.4 | 21.0 | 3.7-4.3 | Not Rated | DIN 7349 | 25 | 000000000 | 00000 |
| M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B52 | DIN 9021 | 25 | 000000000 | 00000 |
| M10 | 10.5 | 19.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M10 | 10.5 | 23.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M10 | 10.5 | 25.0 | 3.7-4.3 | Not Rated | DIN 7349 | 10 | 000000000 | 0000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B52 | DIN 9021 | 10 | 000000000 | 0000 |
| M12 | 13.0 | 22.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M12 | 13.0 | 26.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M12 | 13.0 | 30.0 | 5.4-6.6 | Not Rated | DIN 7349 | 10 | 000000000 | 00000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B52 | DIN 9021 | 10 | 000000000 | 00000 |
| M14 | 15.0 | 25.0 | 2.5-3.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M14 | 15.0 | 27.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| M14 | 15.0 | 36.0 | 5.4-6.6 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
| M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M16 | 17.0 | 28.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M16 | 17.0 | 32.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| M16 | 17.0 | 40.0 | 5.4-6.6 | Not Rated | DIN 7349 | 5 | 000000000 | 00000 |
| M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B52 | DIN 9021 | 5 | 000000000 | 00000 |
| M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M20 | 21.0 | 35.0 | 3.0-3.9 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M20 | 21.0 | 35.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| M20 | 21.0 | 44.0 | 7.0-9.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
| M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B52 | DIN 9021 | 1 | 000000000 | 0000 |
| M24 | 25.0 | 40.0 | 3.5-4.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M24 | 25.0 | 43.0 | 6.0-6.9 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| M24 | 25.0 | 50.0 | 9.0-11.0 | Not Rated | DIN 7349 | 1 | 000000000 | 0000 |
| M24 | 26.0 | 72.0 | 4.0-6.0 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
| M30 | 31.0 | 44.0 | 3.5-4.4 | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| M30 | 31.0 | 48.0 | 6.0-6.9 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| M36 | 37.0 | 50.0 | 4.5-5.4 | Rockwell B83 | __ | 1 | 000000000 | 00000 |
17-7 PH Stainless Steel | ||||||||
| M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell C40 | DIN 9021 | 10 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell C40 | DIN 9021 | 10 | 000000000 | 00000 |
| M6 | 7.0 | 13.6 | 2.7-4.0 | Rockwell C40 | DIN 9021 | 1 | 000000000 | 00000 |
| M8 | 8.4 | 22.0 | 4.5-5.4 | Rockwell C40 | DIN 9021 | 1 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
| M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B68 | DIN 9021 | 10 | 000000000 | 00000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B68 | DIN 9021 | 5 | 000000000 | 0000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B68 | DIN 9021 | 5 | 000000000 | 00000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
| M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
| M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
| M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
| M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
316 Stainless Steel | ||||||||
| M2 | 2.2 | 7.0 | 0.6-1.0 | Rockwell B75 | DIN 9021 | 100 | 000000000 | 0000 |
| M2.5 | 2.7 | 8.0 | 0.7-0.9 | Rockwell B75 | DIN 9021 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 9.0 | 0.7-0.9 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 0000 |
| M4 | 4.3 | 12.0 | 0.9-1.1 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 0000 |
| M5 | 5.3 | 15.0 | 1.0-1.4 | Rockwell B75 | DIN 9021 | 50 | 000000000 | 00000 |
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B75 | DIN 9021 | 25 | 000000000 | 0000 |
| M7 | 7.4 | 22.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 10 | 000000000 | 0000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B75 | DIN 9021 | 10 | 000000000 | 0000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B75 | DIN 9021 | 5 | 000000000 | 0000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M14 | 15.0 | 44.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M16 | 17.0 | 50.0 | 2.7-3.3 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M18 | 20.0 | 56.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M20 | 22.0 | 60.0 | 3.4-4.6 | Rockwell B75 | DIN 9021 | 1 | 000000000 | 0000 |
| M24 | 26.8 | 72.0 | 4.0-6.0 | Rockwell B68 | DIN 9021 | 1 | 000000000 | 0000 |
Bumax 88 Stainless Steel | ||||||||
| M6 | 6.4 | 18.0 | 1.4-1.8 | Rockwell B91 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M8 | 8.4 | 24.0 | 1.8-2.2 | Rockwell B91 | DIN 9021, ISO 7093 | 5 | 000000000 | 0000 |
| M10 | 10.5 | 30.0 | 2.3-2.7 | Rockwell B91 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
| M12 | 13.0 | 37.0 | 2.7-3.3 | Rockwell B91 | DIN 9021, ISO 7093 | 1 | 000000000 | 0000 |
General Purpose Washers
18-8 stainless steel and 17-7 PH stainless steel washers have good chemical resistance and may be mildly magnetic. Copper, brass, and bronze washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.
For technical drawings and 3-D models, click on a part number.
Metric General Purpose Washers
Stainless Steel
Brass
Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.
Stainless steel washers are more corrosion resistant than steel washers, and almost as strong. 18-8 and 17-7 PH stainless steel washers will hold up in humid, damp, and washdown environments, but will corrode if exposed to salt water or chemicals. 17-7 PH stainless steel washers are stronger than 18-8 stainless steel. Black-oxide 18-8 stainless steel washers have a matte-black finish. More corrosion resistant than 18-8 and 17-7 PH stainless steel, 316 stainless steel washers will not corrode from salt water, chlorine solutions, and chemicals. Stronger and slightly more corrosion resistant than 316 stainless steel, Bumax 109 stainless steel washers are best for marine environments and chemical-processing plants.
Steel washers are stronger and more wear resistant than stainless steel washers. Steel washers without a plating or coating are best for dry environments, since moisture will cause them to rust. Zinc-plated steel washers have an outer layer of zinc that protects the inner steel from rust and extends the life of the washer. Although they are stronger and more wear resistant than stainless steel, they are not as corrosion resistant. Use them in wet environments, but avoid contact with salt water and chemicals. Zinc-flake-coated and black corrosion-resistant-coated steel washers have the same level of corrosion resistance—both resist corrosion from chemicals and withstand 1,000 hours of salt spray. The black corrosion-resistant-coated steel washers have a black semi-gloss finish.
At one-third the weight of steel, aluminum washers are the lightest option. They will not rust in wet environments.
In addition to resisting rust in wet environments, copper and brass washers are electrically conductive.
Washers that meet ISO 7089, 7090, 7091, and 7092 (formerly DIN 125, 126, and 433), meet international standards for fastener dimensions. The ISO 7091 washers have a slightly rougher surface than a typical flat washer.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Thickness, mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| M1 | 1.1 | 3.2 | 0.2-0.4 | Rockwell B75 | ISO 7089 | 100 | 000000000 | 00000 |
| M1.2 | 1.3 | 3.8 | 0.2-0.4 | Rockwell B75 | ISO 7089 | 100 | 000000000 | 0000 |
| M1.4 | 1.5 | 3.8 | 0.2-0.4 | Rockwell B75 | ISO 7089 | 100 | 000000000 | 0000 |
| M1.6 | 1.7 | 4.0 | 0.2-0.4 | Rockwell B75 | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M2 | 2.2 | 5.0 | 0.2-0.4 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M2.5 | 2.7 | 6.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 7.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M3.5 | 3.7 | 8.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 9.0 | 0.7-0.9 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 10.0 | 0.9-1.1 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 12.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M7 | 7.4 | 14.0 | 1.4-1.8 | Rockwell B80 | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
| M8 | 8.4 | 16.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
| M10 | 10.5 | 20.0 | 1.8-2.2 | Not Rated | DIN 125; ISO 7089 | 50 | 000000000 | 00000 |
| M12 | 13.0 | 24.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M14 | 15.0 | 28.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M16 | 17.0 | 30.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M18 | 19.0 | 34.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M20 | 21.0 | 37.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
| M24 | 25.0 | 44.0 | 3.7-4.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
| M30 | 31.0 | 56.0 | 3.7-4.3 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
| M36 | 37.0 | 66.0 | 4.4-5.6 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
| M39 | 40.0 | 72.0 | 5.4-6.6 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
| M42 | 43.0 | 78.0 | 6.0-8.0 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
316 Stainless Steel | ||||||||
| M1.6 | 1.7 | 4.0 | 0.2-0.4 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M2 | 2.2 | 5.0 | 0.2-0.4 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M2.5 | 2.7 | 6.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 7.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M3.5 | 3.7 | 8.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 9.0 | 0.7-0.9 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 10.0 | 0.9-1.1 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 12.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M7 | 7.4 | 14.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
| M8 | 8.4 | 16.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
| M10 | 10.5 | 20.0 | 1.8-2.2 | Not Rated | DIN 125; ISO 7089 | 50 | 000000000 | 00000 |
| M12 | 13.0 | 24.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M14 | 15.0 | 28.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M16 | 17.0 | 30.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M18 | 19.0 | 34.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M20 | 21.0 | 37.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M24 | 25.0 | 44.0 | 3.7-4.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
| M30 | 31.0 | 56.0 | 3.7-4.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 00000 |
| M36 | 37.0 | 66.0 | 4.4-5.6 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
| M39 | 40.0 | 72.0 | 5.4-6.6 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 00000 |
| M42 | 43.0 | 78.0 | 6.0-8.0 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 00000 |
Bumax 109 Stainless Steel | ||||||||
| M6 | 6.4 | 12.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M8 | 8.4 | 16.0 | 1.4-1.8 | Rockwell C30 | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M10 | 10.5 | 20.0 | 1.8-2.2 | Rockwell C30 | DIN 125; ISO 7089 | 5 | 000000000 | 0000 |
| M12 | 13.0 | 24.0 | 2.3-2.7 | Rockwell C30 | DIN 125; ISO 7089 | 5 | 000000000 | 00000 |
Brass | ||||||||
| M1.6 | 1.7 | 4.0 | 0.2-0.4 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M2 | 2.2 | 5.0 | 0.2-0.4 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M2.5 | 2.7 | 6.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M3 | 3.2 | 7.0 | 0.4-0.6 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M4 | 4.3 | 9.0 | 0.7-0.9 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M5 | 5.3 | 10.0 | 0.9-1.1 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 0000 |
| M6 | 6.4 | 12.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 100 | 000000000 | 00000 |
| M7 | 7.4 | 14.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 0000 |
| M8 | 8.4 | 16.0 | 1.4-1.8 | Not Rated | DIN 125; ISO 7089 | 50 | 000000000 | 00000 |
| M10 | 10.5 | 20.0 | 1.8-2.2 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M12 | 13.0 | 24.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 25 | 000000000 | 00000 |
| M14 | 15.0 | 28.0 | 2.3-2.7 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
| M16 | 17.0 | 30.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 10 | 000000000 | 00000 |
| M18 | 19.0 | 34.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |
| M20 | 21.0 | 37.0 | 2.7-3.3 | Not Rated | DIN 125; ISO 7089 | 5 | 000000000 | 00000 |
| M24 | 25.0 | 44.0 | 3.7-4.3 | Not Rated | DIN 125; ISO 7089 | 1 | 000000000 | 0000 |