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About Washers
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High-Pressure-Rated Metal-Bonded Sealing Washers
Able to withstand pressure greater than 3,000 psi, these one-piece bonded washers create the tightest seals.
Zinc-plated steel washers are corrosion resistant in wet environments. Use these washers under partially threaded nuts or bolts that have a smooth shaft under the head. The Buna-N rubber seal has excellent abrasion resistance and good oil, weather, and chemical resistance. Washers are reusable.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| No. 6 | 0.130" | 0.385" | 0.036"-0.044" | 10,800 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 000000 |
| No. 8 | 0.156" | 0.385" | 0.036"-0.044" | 8,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| No. 10 | 0.180" | 0.443" | 0.045"-0.055" | 6,200 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1/4" | 0.240" | 0.505" | 0.045"-0.055" | 5,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 5/16" | 0.301" | 0.603" | 0.045"-0.055" | 3,600 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 3/8" | 0.364" | 0.666" | 0.045"-0.055" | 3,400 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 7/16" | 0.427" | 0.760" | 0.045"-0.055" | 3,600 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/2" | 0.490" | 0.880" | 0.045"-0.055" | 4,200 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
| 9/16" | 0.552" | 1.067" | 0.045"-0.055" | 6,600 | 200 | -30° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/8" | 0.615" | 1.193" | 0.045"-0.055" | 7,500 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/4" | 0.740" | 1.322" | 0.059"-0.069" | 5,700 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 7/8" | 0.864" | 1.510" | 0.059"-0.069" | 6,000 | 200 | -30° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1" | 0.988" | 1.760" | 0.059"-0.069" | 7,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
Metric High-Pressure-Rated Metal-Bonded Sealing Washers
Able to withstand pressure greater than 7,000 psi, these one-piece bonded washers create the tightest seals. They are zinc-plated steel for corrosion resistance in wet environments. The Buna-N rubber seal has excellent abrasion resistance and good oil, weather, and chemical resistance. Washers are reusable.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID, mm | OD, mm | Thick., mm | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| M5 | 4.8 | 9.8 | 0.9-1.2 | 15,200 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 000000 |
| M6 | 5.8 | 11.3 | 1.1-1.4 | 12,800 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
| M8 | 7.8 | 13.5 | 1.1-1.4 | 7,900 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
| M10 | 9.7 | 15.3 | 1.1-1.4 | 7,200 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
| M12 | 11.7 | 19.3 | 1.1-1.4 | 7,100 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
| M14 | 13.7 | 22.4 | 1.1-1.4 | 8,000 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
| M16 | 15.7 | 27.1 | 1.1-1.4 | 12,500 | 200 | -30° | 220° | Rockwell C26 | Durometer 85A | Black | 5 | 000000000 | 00000 |
Pressure-Rated Metal-Bonded Sealing Washers for Nuts and Washers
Also known as thread-sealing washers, use these under nuts and other washers. Rated to withstand pressure at or greater than 2,000 psi, these one-piece metal-to-rubber bonded washers create a stronger seal than metal or rubber alone. They are zinc-plated steel for corrosion resistance in wet environments. The Buna-N rubber seal has excellent abrasion resistance and good oil, weather, and chemical resistance. Washers are reusable.
For technical drawings and 3-D models, click on a part number.
Max. Pressure, psi | Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel with Buna-N Rubber Seal | |||||||||||||
| No. 6 | 0.141" | 0.406" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 000000 |
| No. 8 | 0.167" | 0.406" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| No. 10 | 0.194" | 0.469" | 0.045"-0.055" | 2,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/4" | 0.255" | 0.562" | 0.045"-0.055" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/16" | 0.319" | 0.687" | 0.059"-0.069" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/8" | 0.383" | 0.750" | 0.059"-0.069" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 7/16" | 0.447" | 0.906" | 0.073"-0.083" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 1/2" | 0.510" | 1.000" | 0.073"-0.083" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 5/8" | 0.683" | 1.187" | 0.089"-0.099" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
| 3/4" | 0.765" | 1.375" | 0.104"-0.114" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
| 1" | 1.020" | 1.750" | 0.115"-0.125" | 5,000 | Not Rated | -30° | 220° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 00000 |
Metal-Bonded Sealing Washers
Create a stronger seal than metal or rubber alone. These one-piece washers are metal for strength with a bonded rubber seal that creates a tight grip. Made of neoprene, the seal has good oil and abrasion resistance. Washers are reusable.
Hot-dipped galvanized steel washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | Min. | Max. | Seal Hardness | Seal Color | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel with Neoprene Rubber Seal | ||||||||||
| No. 6 | 0.150" | 0.375" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 8 | 0.180" | 0.375" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 8 | 0.180" | 0.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.375" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 0.625" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 10 | 0.200" | 1.125" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 25 | 000000000 | 00000 |
| No. 12 | 0.240" | 0.375" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 12 | 0.240" | 0.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 12 | 0.240" | 0.625" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| No. 12 | 0.240" | 0.750" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| 1/4" | 0.260" | 0.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| 1/4" | 0.275" | 0.625" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| 1/4" | 0.275" | 0.750" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| 1/4" | 0.275" | 1.000" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| 5/16" | 0.330" | 0.625" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 0000 |
| 5/16" | 0.330" | 0.750" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| 3/8" | 0.434" | 0.750" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| 3/8" | 0.434" | 1.000" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| 1/2" | 0.532" | 1.000" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| 5/8" | 0.650" | 1.188" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 0000 |
| 3/4" | 0.810" | 1.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 00000 |
| 7/8" | 0.910" | 1.500" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 00000 |
| 1" | 1.040" | 2.000" | 0.086"-0.116" | -40° | 250° | Durometer 65A | Black | 5 | 000000000 | 0000 |