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About Washers
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Washers for Structural Applications
Hot-Dipped Galvanized Steel
Steel
Designed for use with A325 structural screws, studs, and nuts, these washers are often used for construction and exterior building applications.
Hot-dipped galvanized 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. | |
Hot-Dipped Galvanized Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.531" | 1.062" | 0.097"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 50 | 000000000 | 000000 |
| 5/8" | 0.688" | 1.312" | 0.122"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 25 | 000000000 | 0000 |
| 3/4" | 0.812" | 1.469" | 0.122"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 25 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 0000 |
| 1" | 1.062" | 2.000" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 0000 |
| 1 1/8" | 1.188" | 2.250" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 00000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 3/8" | 1.531" | 2.750" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 00000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1; ASME B18.21.1 | 5 | 000000000 | 0000 |
| 1 5/8" | 1.770" | 3.250" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 00000 |
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 00000 |
| 1 7/8" | 2.000" | 3.500" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2" | 2.125" | 3.750" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2 1/4" | 2.407" | 4.000" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.657" | 4.500" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2 3/4" | 2.907" | 5.000" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 3" | 3.157" | 5.500" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
Steel | ||||||||
| 1/2" | 0.531" | 1.062" | 0.097"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 100 | 000000000 | 00000 |
| 5/8" | 0.688" | 1.312" | 0.122"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 50 | 000000000 | 00000 |
| 3/4" | 0.812" | 1.469" | 0.122"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 50 | 000000000 | 00000 |
| 7/8" | 0.938" | 1.750" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 25 | 000000000 | 00000 |
| 1" | 1.062" | 2.000" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 25 | 000000000 | 00000 |
| 1 1/8" | 1.188" | 2.250" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 0000 |
| 1 1/4" | 1.375" | 2.500" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1; ASME B18.21.1 | 10 | 000000000 | 0000 |
| 1 3/8" | 1.531" | 2.750" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1 | 10 | 000000000 | 0000 |
| 1 1/2" | 1.625" | 3.000" | 0.136"-0.177" | Rockwell C38 | ASTM F436 Type 1; ASME B18.21.1 | 10 | 000000000 | 00000 |
| 1 5/8" | 1.770" | 3.250" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 0000 |
| 1 3/4" | 1.875" | 3.375" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 00000 |
| 1 7/8" | 2.000" | 3.500" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 0000 |
| 2" | 2.125" | 3.750" | 0.178"-0.280" | Rockwell C38 | ASTM F436 Type 1 | 5 | 000000000 | 00000 |
| 2 1/4" | 2.407" | 4.000" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2 1/2" | 2.657" | 4.500" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 2 3/4" | 2.907" | 5.000" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
| 3" | 3.157" | 5.500" | 0.240"-0.340" | Rockwell C38 | ASTM F436 Type 1 | 1 | 000000000 | 0000 |
Tension-Indicating Washers for Structural Applications
These washers release an orange dye when tightened. They’re designed for use with A325 structural screws, studs, and nuts and are often used for construction and exterior building applications.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.527" | 1.063" | 0.104"-0.111" | Rockwell C15 | ASME B18.2.6; ASTM F959 Type A325 | 5 | 000000000 | 00000 |
| 5/8" | 0.658" | 1.313" | 0.126"-0.133" | Rockwell C15 | ASME B18.2.6; ASTM F959 Type A325 | 5 | 000000000 | 0000 |
| 3/4" | 0.790" | 1.469" | 0.126"-0.133" | Rockwell C15 | ASME B18.2.6; ASTM F959 Type A325 | 5 | 000000000 | 00000 |
| 7/8" | 0.921" | 1.750" | 0.142"-0.149" | Rockwell C15 | ASME B18.2.6; ASTM F959 Type A325 | 5 | 000000000 | 00000 |
| 1" | 1.052" | 2.000" | 0.158"-0.165" | Rockwell C15 | ASME B18.2.6; ASTM F959 Type A325 | 5 | 000000000 | 00000 |
High-Temperature Mica Washers
These washers withstand temperatures up to 1050° F and are excellent electrical insulators. Color ranges from clear to tan.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Max. Temperature, °F | Color | Pkg. Qty. | Pkg. | |
Mica | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 0 | 0.072" | 0.219" | 0.004"-0.006" | 1050° | Tan | 5 | 000000000 | 000000 |
| No. 2 | 0.098" | 0.265" | 0.001"-0.003" | 1050° | Tan | 10 | 000000000 | 00000 |
| No. 3 | 0.109" | 0.312" | 0.004"-0.006" | 1050° | Tan | 5 | 000000000 | 0000 |
| No. 4 | 0.118" | 0.375" | 0.001"-0.003" | 1050° | Tan | 10 | 000000000 | 0000 |
| No. 6 | 0.156" | 0.296" | 0.001"-0.003" | 1050° | Tan | 10 | 000000000 | 0000 |
| No. 8 | 0.176" | 0.375" | 0.004"-0.006" | 1050° | Tan | 10 | 000000000 | 0000 |
| No. 10 | 0.195" | 0.750" | 0.004"-0.006" | 1050° | Tan | 10 | 000000000 | 0000 |