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About Washers
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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. Black-oxide 18-8 stainless steel washers have a matte-black finish.
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.
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. 10 | 0.219" | 1.000" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1/4" | 0.281" | 1.500" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.000" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.000" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 3/8" | 0.406" | 2.000" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 3/8" | 0.406" | 2.000" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1/2" | 0.531" | 2.000" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 2.000" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 5/8" | 0.688" | 2.500" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 5/8" | 0.688" | 2.500" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 3/4" | 0.812" | 3.000" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 7/8" | 0.938" | 3.250" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1" | 1.062" | 3.500" | 0.110"-0.140" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 4.000" | 0.485"-0.515" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 2.750" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.000" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
| 2" | 2.125" | 3.750" | 0.235"-0.265" | Rockwell B83 | __ | 1 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
| No. 0 | 0.078" | 0.188" | 0.010"-0.030" | Rockwell B68 | __ | 50 | 000000000 | 0000 |
| No. 1 | 0.080" | 0.188" | 0.040"-0.060" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 2 | 0.094" | 0.312" | 0.050"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.312" | 0.050"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.344" | 0.050"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.375" | 0.050"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 5 | 0.141" | 0.375" | 0.050"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 5 | 0.141" | 0.625" | 0.020"-0.040" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.438" | 0.020"-0.040" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.500" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.562" | 0.040"-0.060" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.750" | 0.030"-0.070" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.500" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.625" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.172" | 0.750" | 0.030"-0.050" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.750" | 0.040"-0.060" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 8 | 0.188" | 1.000" | 0.030"-0.070" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| No. 10 | 0.203" | 0.500" | 0.030"-0.050" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.562" | 0.060"-0.090" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.625" | 0.060"-0.090" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.688" | 0.030"-0.050" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.750" | 0.030"-0.050" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| No. 10 | 0.203" | 0.875" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| No. 10 | 0.203" | 1.000" | 0.030"-0.050" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| No. 10 | 0.203" | 1.250" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| No. 10 | 0.219" | 1.500" | 0.030"-0.070" | Not Rated | __ | 10 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.040"-0.060" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.750" | 0.060"-0.090" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| No. 12 | 0.250" | 1.000" | 0.060"-0.090" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| No. 12 | 0.250" | 1.500" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.266" | 0.562" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 0000 |
| 1/4" | 0.266" | 0.875" | 0.050"-0.080" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.266" | 1.000" | 0.040"-0.060" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.266" | 1.250" | 0.040"-0.060" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.266" | 1.500" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.266" | 2.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.266" | 2.500" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1/4" | 0.266" | 3.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.170"-0.200" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.688" | 0.060"-0.090" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.750" | 0.060"-0.090" | Rockwell B68 | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.328" | 0.625" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.750" | 0.170"-0.200" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 1.250" | 0.040"-0.060" | Not Rated | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 1.500" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.500" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 5/16" | 0.344" | 3.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.750" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.875" | 0.110"-0.140" | Rockwell B68 | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.040"-0.060" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.000" | 0.110"-0.140" | Not Rated | __ | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 1.250" | 0.040"-0.060" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.500" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 1.625" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 2.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 3.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.000" | 0.110"-0.140" | Not Rated | __ | 10 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.125" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.125" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.500" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.500" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.000" | 0.060"-0.090" | Rockwell B68 | __ | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.125" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.250" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.250" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.500" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.500" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 2.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 3.000" | 0.050"-0.080" | Not Rated | __ | 5 | 000000000 | 00000 |
| 9/16" | 0.578" | 1.062" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 9/16" | 0.578" | 1.250" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.375" | 0.050"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.375" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.060"-0.090" | Not Rated | __ | 10 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.375" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.500" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.500" | 0.110"-0.140" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.750" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.750" | 0.230"-0.270" | Not Rated | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.000" | 0.170"-0.200" | Rockwell B68 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.500" | 0.170"-0.200" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.110"-0.140" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 3.000" | 0.150"-0.220" | Not Rated | __ | 1 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
| 1 3/8" | 1.500" | 2.750" | 0.235"-0.265" | Rockwell C40 | __ | 1 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.000" | 0.235"-0.265" | Rockwell C40 | __ | 1 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.235"-0.265" | Rockwell C40 | __ | 1 | 000000000 | 00000 |
| 2" | 2.125" | 3.750" | 0.235"-0.265" | Rockwell C40 | __ | 1 | 000000000 | 00000 |
| 2 1/2" | 2.625" | 4.500" | 0.298"-0.328" | Rockwell C40 | __ | 1 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
| No. 10 | 0.219" | 1.000" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| No. 10 | 0.219" | 1.000" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 1.500" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 1/4" | 0.281" | 1.500" | 0.235"-0.250" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.000" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 2.000" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 2.000" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 2.000" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 2.000" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 2.000" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 0000 |
| 1/2" | 0.562" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 5/8" | 0.688" | 2.500" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.688" | 2.500" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.688" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 3/4" | 0.812" | 3.000" | 0.110"-0.140" | Rockwell B40 | __ | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 3.000" | 0.360"-0.390" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 3.000" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 3.250" | 0.110"-0.140" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 3.250" | 0.235"-0.265" | Rockwell B40 | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 3.250" | 0.360"-0.390" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 3.250" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 3.500" | 0.110"-0.140" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 3.500" | 0.235"-0.265" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 3.500" | 0.360"-0.390" | Rockwell B40 | __ | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 4.000" | 0.485"-0.515" | Rockwell B40 | __ | 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. Black-oxide 18-8 stainless steel washers have a matte-black finish.
For technical drawings and 3-D models, click on a part number.