For Screw Size For Screw Size |
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Material Material |
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OD OD |
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ID ID |
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Hardness Hardness |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Maximum Thickness Maximum Thickness |
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Minimum Thickness Minimum Thickness |
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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
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 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.
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. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | __ | 100 | 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 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 25 | 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 |
18-8 Stainless Steel | ||||||||
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 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 |
| 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 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 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 |
| No. 5 | 0.141" | 0.281" | 0.020"-0.040" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 5 | 0.141" | 0.281" | 0.020"-0.040" | Not Rated | __ | 1,100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 765 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 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 | 555 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.500" | 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 | 435 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 280 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 220 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 190 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 140 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 105 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 55 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 43 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 36 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 21 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 16 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 12 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 9 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 6 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 4 | 000000000 | 0000 |
Steel | ||||||||
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | __ | 1,450 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 765 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 555 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | ASME B18.21.1 | 435 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 280 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 220 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 190 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 140 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 105 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 55 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 43 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | ASME B18.21.1 | 36 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 21 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 16 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 12 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 9 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 6 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 4 | 000000000 | 0000 |
Copper | ||||||||
| 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 | __ | 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 | __ | 50 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 00000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 00000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 00000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.213" | Not Rated | __ | 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 |
Brass | ||||||||
| 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 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | __ | 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 | __ | 100 | 000000000 | 00000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 10 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.213" | Not Rated | __ | 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 |
Nickel-Plated Brass | ||||||||
| No. 2 | 0.094" | 0.250" | 0.012"-0.018" | Not Rated | __ | 100 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | __ | 50 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | __ | 50 | 000000000 | 00000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | __ | 25 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | __ | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | __ | 1 | 000000000 | 0000 |
Aluminum | ||||||||
| 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 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 5 | 0.140" | 0.312" | 0.025"-0.040" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | __ | 100 | 000000000 | 0000 |
| 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 | __ | 100 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | __ | 100 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | __ | 100 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | __ | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | __ | 50 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | __ | 25 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | __ | 25 | 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 | __ | 10 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | __ | 5 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.213" | Not Rated | __ | 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 Corrosion-Resistant-Coated Grade 8 Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.813" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.063" | 0.100"-0.116" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 9/16" | 0.594" | 1.188" | 0.100"-0.116" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.313" | 0.122"-0.138" | Rockwell C38 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 3/4" | 0.813" | 1.469" | 0.122"-0.138" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.136"-0.152" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.063" | 2.000" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.160" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.196" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 2" | 2.125" | 3.750" | 0.178"-0.196" | Rockwell C38 | ASME B18.21.1 | 1 | 000000000 | 00000 |
Black Corrosion-Resistant-Coated Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 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" | 1.469" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
USS Washers
USS washers generally have a larger ID and OD than SAE washers.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic. Zinc-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 steel washers resist chemicals and withstand 1,000 hours of salt spray.
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 | 0.250" | 0.562" | 0.036"-0.065" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Rockwell B68 | __ | 50 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell B68 | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell B68 | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Rockwell B68 | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell B68 | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 9/16" | 0.625" | 1.500" | 0.086"-0.132" | Rockwell B68 | __ | 5 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Rockwell B68 | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Rockwell B68 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Rockwell B68 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Rockwell B68 | ASME B18.21.1 | 1 | 000000000 | 0000 |
Black Ultra-Corrosion-Resistant Coated Steel | ||||||||
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | ||||||||
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
Steel | ||||||||
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | __ | 1,785 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | __ | 100 | 000000000 | 0000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | __ | 745 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 435 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 335 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 185 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 130 | 000000000 | 00000 |
| 9/16" | 0.625" | 1.469" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 110 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 65 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 45 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 32 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 26 | 000000000 | 00000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 3.250" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 2" | 2.125" | 4.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.625" | 5.000" | 0.210"-0.280" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3" | 3.125" | 5.500" | 0.249"-0.327" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | __ | 100 | 000000000 | 0000 |
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | __ | 1,785 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | __ | 100 | 000000000 | 0000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | __ | 745 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 435 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 335 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 9/16" | 0.625" | 1.469" | 0.086"-0.132" | Not Rated | ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | ASME B18.21.1 | 25 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 3.250" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 2" | 2.125" | 4.500" | 0.153"-0.213" | Not Rated | ASME B18.21.1 | 5 | 000000000 | 00000 |
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.625" | 5.000" | 0.210"-0.280" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3" | 3.125" | 5.500" | 0.249"-0.327" | Not Rated | ASME B18.21.1 | 1 | 000000000 | 0000 |