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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 | 0000 |
| 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 | 0000 |
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 |
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.
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 |