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About Washers
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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 steel washers are corrosion resistant in wet environments.
Black ultra-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. | |
316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | SAE Standards | 100 | 000000000 | 00000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | SAE Standards | 50 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | SAE Standards | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | SAE Standards | 50 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | SAE Standards | 25 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | SAE Standards | 10 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | SAE Standards | 5 | 000000000 | 0000 |
18-8 Stainless Steel | ||||||||
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Rockwell B68 | SAE Standards | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Rockwell B68 | SAE Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 50 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.500" | 0.108"-0.160" | Not Rated | SAE Standards | 10 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
| No. 2 | 0.094" | 0.219" | 0.005"-0.030" | Not Rated | SAE Standards | 100 | 000000000 | 0000 |
| No. 2 | 0.094" | 0.219" | 0.005"-0.030" | Not Rated | SAE Standards | 2,100 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.250" | 0.005"-0.030" | Not Rated | SAE Standards | 100 | 000000000 | 0000 |
| No. 3 | 0.109" | 0.250" | 0.005"-0.030" | Not Rated | SAE Standards | 1,400 | 000000000 | 00000 |
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | SAE Standards | 100 | 000000000 | 0000 |
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | SAE Standards | 1,450 | 000000000 | 00000 |
| No. 5 | 0.141" | 0.281" | 0.020"-0.040" | Not Rated | SAE Standards | 100 | 000000000 | 0000 |
| No. 5 | 0.141" | 0.281" | 0.020"-0.040" | Not Rated | SAE Standards | 1,100 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 765 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 555 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 435 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 280 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 220 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 190 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 140 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 105 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 55 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 43 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 36 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 21 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 16 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 12 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 9 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 6 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 4 | 000000000 | 0000 |
Black Ultra-Corrosion-Resistant Coated Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
Steel | ||||||||
| No. 4 | 0.125" | 0.312" | 0.020"-0.040" | Not Rated | SAE Standards | 1,450 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 765 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 555 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Not Rated | SAE Standards; ASME B18.21.1 | 435 | 000000000 | 0000 |
| No. 12 | 0.250" | 0.562" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 280 | 000000000 | 0000 |
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 220 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 190 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 140 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Not Rated | SAE Standards; ASME B18.21.1 | 105 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 55 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 43 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Not Rated | SAE Standards; ASME B18.21.1 | 36 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 21 | 000000000 | 0000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 16 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 12 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Not Rated | SAE Standards; ASME B18.21.1 | 9 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 6 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Not Rated | SAE Standards; ASME B18.21.1 | 4 | 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 ultra-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 | USS Standards | 50 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Rockwell B68 | USS Standards | 50 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell B68 | USS Standards; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell B68 | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Rockwell B68 | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell B68 | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.500" | 0.086"-0.132" | Rockwell B68 | USS Standards | 5 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Rockwell B68 | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Rockwell B68 | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Rockwell B68 | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Rockwell B68 | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | USS Standards | 100 | 000000000 | 0000 |
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | USS Standards | 1,785 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 100 | 000000000 | 0000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 745 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 435 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 335 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.469" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | USS Standards; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | USS Standards; ASME B18.21.1 | 25 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 3.250" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 2" | 2.125" | 4.500" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 00000 |
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.625" | 5.000" | 0.210"-0.280" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3" | 3.125" | 5.500" | 0.249"-0.327" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | ||||||||
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 50 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | USS Standards; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | USS Standards; ASME B18.21.1 | 25 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
Black Ultra-Corrosion-Resistant Coated Steel | ||||||||
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 10 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 00000 |
Steel | ||||||||
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | USS Standards | 100 | 000000000 | 0000 |
| No. 10 | 0.250" | 0.562" | 0.036"-0.065" | Not Rated | USS Standards | 1,785 | 000000000 | 00000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 100 | 000000000 | 0000 |
| 1/4" | 0.312" | 0.750" | 0.051"-0.080" | Not Rated | USS Standards | 745 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 435 | 000000000 | 00000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 100 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 335 | 000000000 | 00000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Not Rated | USS Standards; ASME B18.21.1 | 185 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 130 | 000000000 | 00000 |
| 9/16" | 0.625" | 1.469" | 0.086"-0.132" | Not Rated | USS Standards; ASME B18.21.1 | 110 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Not Rated | USS Standards; ASME B18.21.1 | 65 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Not Rated | USS Standards; ASME B18.21.1 | 45 | 000000000 | 00000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 32 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 26 | 000000000 | 00000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Not Rated | USS Standards; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 3.250" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.500" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 3/4" | 1.875" | 4.000" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 2" | 2.125" | 4.500" | 0.153"-0.213" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/4" | 2.375" | 4.750" | 0.193"-0.248" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.625" | 5.000" | 0.210"-0.280" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3" | 3.125" | 5.500" | 0.249"-0.327" | Not Rated | USS Standards; ASME B18.21.1 | 1 | 000000000 | 0000 |
General Purpose Washers
A286 stainless steel washers withstand high temperatures. They have good chemical resistance and may be mildly magnetic.
Zinc yellow-chromate and chrome-plated steel washers are corrosion resistant in wet environments.
Zinc-aluminum coated and black ultra-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. | |
A286 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 4 | 0.125" | 0.312" | 0.025"-0.040" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| No. 6 | 0.156" | 0.375" | 0.036"-0.065" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| No. 8 | 0.188" | 0.438" | 0.036"-0.065" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| No. 10 | 0.219" | 0.500" | 0.036"-0.065" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 1/4" | 0.312" | 0.734" | 0.051"-0.080" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 00000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell C22 | ASME B18.21.1 | 1 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1, SAE Standards | 100 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1, SAE Standards | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1, SAE Standards | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1, SAE Standards | 25 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1, SAE Standards | 25 | 000000000 | 0000 |
| 9/16" | 0.594" | 1.156" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1, SAE Standards | 25 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.122"-0.146" | Rockwell C38 | __ | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1, SAE Standards | 20 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1, SAE Standards | 10 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1, SAE Standards | 10 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.250" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1, SAE Standards | 10 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1, SAE Standards | 5 | 000000000 | 0000 |
| 1 3/8" | 1.500" | 2.750" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1, SAE Standards | 5 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1, SAE Standards | 5 | 000000000 | 00000 |
| 1 5/8" | 1.750" | 3.750" | 0.153"-0.213" | Rockwell C38 | ASME B18.21.1, SAE Standards | 1 | 000000000 | 0000 |
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.196" | Rockwell C38 | __ | 5 | 000000000 | 00000 |
| 1 7/8" | 2.000" | 4.250" | 0.153"-0.213" | Rockwell C38 | ASME B18.21.1, SAE Standards | 1 | 000000000 | 0000 |
| 2" | 2.125" | 3.750" | 0.178"-0.196" | Rockwell C38 | __ | 1 | 000000000 | 0000 |
Chrome-Plated Steel | ||||||||
| 1/4" | 0.312" | 0.734" | 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, SAE Standards | 25 | 000000000 | 00000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Not Rated | ASME B18.21.1, SAE Standards | 25 | 000000000 | 00000 |
| 7/16" | 0.475" | 0.930" | 0.051"-0.080" | Not Rated | ASME B18.21.1, SAE Standards | 10 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Not Rated | ASME B18.21.1, SAE Standards | 10 | 000000000 | 00000 |
| 9/16" | 0.600" | 1.162" | 0.074"-0.121" | Not Rated | ASME B18.21.1, SAE Standards | 10 | 000000000 | 00000 |
Zinc-Aluminum Coated Grade 8 Steel | ||||||||
| 1/4" | 0.281" | 0.625" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1, SAE Standards | 100 | 000000000 | 0000 |
| 5/16" | 0.344" | 0.688" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1, SAE Standards | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1, SAE Standards | 50 | 000000000 | 0000 |
| 7/16" | 0.469" | 0.922" | 0.055"-0.065" | Rockwell C38 | ASME B18.21.1, SAE Standards | 25 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.097"-0.177" | Rockwell C38 | SAE Standards | 25 | 000000000 | 0000 |
| 5/8" | 0.688" | 1.312" | 0.122"-0.177" | Rockwell C38 | SAE Standards | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.122"-0.177" | Rockwell C38 | SAE Standards | 20 | 000000000 | 00000 |
Washers with Material Certification
These washers come with a traceable lot number and a physical and chemical test report. They’re zinc yellow-chromate plated for corrosion resistance 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. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.281" | 0.625" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 000000 |
| 5/16" | 0.344" | 0.688" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 0000 |
| 3/8" | 0.406" | 0.812" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 0000 |
| 1/2" | 0.531" | 1.062" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1 | 25 | 000000000 | 0000 |
| 5/8" | 0.656" | 1.312" | 0.074"-0.121" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1 | 10 | 000000000 | 0000 |
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.
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. | |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 0.312" | 0.734" | 0.051"-0.080" | Rockwell C38 | ASME B18.21.1; USS Standards | 100 | 000000000 | 00000 |
| 5/16" | 0.375" | 0.875" | 0.064"-0.104" | Rockwell C38 | ASME B18.21.1; USS Standards | 50 | 000000000 | 0000 |
| 3/8" | 0.438" | 1.000" | 0.064"-0.104" | Rockwell C38 | ASME B18.21.1; USS Standards | 50 | 000000000 | 0000 |
| 7/16" | 0.500" | 1.250" | 0.064"-0.104" | Rockwell C38 | ASME B18.21.1; USS Standards | 25 | 000000000 | 0000 |
| 1/2" | 0.562" | 1.375" | 0.086"-0.132" | Rockwell C38 | ASME B18.21.1; USS Standards | 25 | 000000000 | 0000 |
| 9/16" | 0.625" | 1.469" | 0.086"-0.132" | Rockwell C38 | ASME B18.21.1; USS Standards | 25 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.750" | 0.108"-0.160" | Rockwell C38 | ASME B18.21.1; USS Standards | 25 | 000000000 | 00000 |
| 3/4" | 0.812" | 2.000" | 0.122"-0.177" | Rockwell C38 | ASME B18.21.1; USS Standards | 10 | 000000000 | 0000 |
| 7/8" | 0.938" | 2.250" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1; USS Standards | 10 | 000000000 | 00000 |
| 1" | 1.062" | 2.500" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1; USS Standards | 5 | 000000000 | 0000 |
| 1 1/8" | 1.250" | 2.750" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1; USS Standards | 5 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 3.000" | 0.136"-0.192" | Rockwell C38 | ASME B18.21.1; USS Standards | 5 | 000000000 | 00000 |
| 1 3/8" | 1.500" | 3.250" | 0.136"-0.160" | Rockwell C38 | USS Standards | 1 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.500" | 0.136"-0.160" | Rockwell C38 | USS Standards | 1 | 000000000 | 0000 |
SAE Washer Assortments
SAE washers generally have a smaller ID and OD than USS washers.
Zinc-plated steel washers resist corrosion in wet environments.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
USS Washer Assortments
USS washers generally have a larger ID and OD than SAE washers. Made from zinc-plated steel, they resist corrosion in wet environments.
| Number of Pieces | Sizes Included | Container Type | Each | |
Inch | ||||
|---|---|---|---|---|
Zinc-Plated Steel | ||||
| 590 | For 1/4" to 3/4" Screw Sizes | Plastic Box | 000000000 | 000000 |
Washer Assortments
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
316 stainless steel washers have excellent resistance to chemicals and salt water and may be mildly magnetic.