System of Measurement System of Measurement |
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For Screw Size For Screw Size |
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Material Material |
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Finish Finish |
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ID ID |
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OD OD |
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Washer Type Washer Type |
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 | Flat |
Thickness Thickness |
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Specifications Met Specifications Met |
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Fastener Strength Grade/Class Fastener StrengthGrade/Class |
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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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Color Color |
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 | Black |
About Washers
More
SAE Washers
SAE washers generally have a smaller ID and OD than USS washers.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 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-plated, zinc yellow-chromate plated, and chrome-plated steel washers are corrosion resistant in wet environments.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc-plated washers.
Black Corrosion-resistant coated and zinc-flake-coated steel washers resist chemicals and withstand 1,000 hours of salt spray.
In addition to resisting rust in wet environments, copper and brass washers are electrically conductive. Nickel-plated brass washers are also nonmagnetic and have a decorative finish.
At one-third the weight of steel, aluminum washers are the lightest option. They will not rust 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. | |
316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 2 | 0.094" | 0.250" | 0.012"-0.018" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.250" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 5 | 0.140" | 0.312" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | __ | 50 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | __ | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | __ | 50 | 000000000 | 00000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 25 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.213" | Not Rated | __ | 1 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.000" | 0.153"-0.213" | Not Rated | __ | 1 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
| No. 2 | 0.094" | 0.250" | 0.012"-0.018" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 3 | 0.109" | 0.250" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 5 | 0.140" | 0.312" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.213" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.153"-0.213" | Not Rated | __ | 1 | 000000000 | 00000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
| No. 2 | 0.094" | 0.250" | 0.012"-0.018" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.250" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 5 | 0.140" | 0.312" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.213" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.153"-0.213" | Not Rated | __ | 1 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 10 | 000000000 | 00000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
| No. 2 | 0.094" | 0.219" | 0.005"-0.030" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.219" | 0.005"-0.030" | Not Rated | __ | 2,100 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.250" | 0.005"-0.030" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 3 | 0.109" | 0.250" | 0.005"-0.030" | Not Rated | __ | 1,400 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | __ | 1,450 | 000000000 | 00000 |