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 | Metal Bonded |
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About Washers
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High-Pressure-Rated Metal-Bonded Sealing Washers
304 and 316 Stainless
Steel with PVC Plastic
Sealant Seal
Steel with PVC Plastic
Sealant Seal
Able to withstand pressure greater than 3,000 psi, these one-piece bonded washers create the tightest seals.
Stainless steel washers are bonded to a PVC sealant that, when tightened, creates an impervious 360° seal around your fastener’s threads. They are not reusable. 304 stainless steel washers are more corrosion resistant than zinc-plated steel washers. They also have good chemical resistance. 316 stainless steel washers have excellent resistance to chemicals and salt water and may be mildly magnetic.
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 Color | Pkg. Qty. | Pkg. | |
304 Stainless Steel with PVC Plastic Sealant Seal | ||||||||||||
| No. 6 | 0.148" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 25 | 000000000 | 00000 |
| No. 8 | 0.175" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 25 | 000000000 | 0000 |
| No. 10 | 0.205" | 0.560" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 25 | 000000000 | 0000 |
| 1/4" | 0.255" | 0.625" | 0.068"-0.078" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 10 | 000000000 | 0000 |
| 5/16" | 0.315" | 0.685" | 0.072"-0.082" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 10 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.810" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 10 | 000000000 | 0000 |
| 7/16" | 0.445" | 0.890" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 5 | 000000000 | 0000 |
| 1/2" | 0.510" | 0.990" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | Black | 5 | 000000000 | 0000 |
316 Stainless Steel with PVC Plastic Sealant Seal | ||||||||||||
| No. 4 | 0.124" | 0.396" | 0.050"-0.060" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 20 | 000000000 | 0000 |
| No. 6 | 0.148" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 20 | 000000000 | 0000 |
| No. 8 | 0.175" | 0.495" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 20 | 000000000 | 0000 |
| No. 10 | 0.205" | 0.560" | 0.060"-0.070" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 20 | 000000000 | 0000 |
| 1/4" | 0.255" | 0.625" | 0.068"-0.078" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 15 | 000000000 | 0000 |
| 5/16" | 0.315" | 0.685" | 0.072"-0.082" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 15 | 000000000 | 0000 |
| 3/8" | 0.385" | 0.810" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.510" | 0.990" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 5 | 000000000 | 0000 |
| 5/8" | 0.639" | 1.135" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 1 | 000000000 | 0000 |
| 3/4" | 0.770" | 1.280" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 1 | 000000000 | 0000 |
| 7/8" | 0.893" | 1.440" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 1 | 000000000 | 0000 |
| 1" | 1.018" | 1.600" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | Black | 1 | 000000000 | 0000 |
Pressure-Rated Metal-Bonded Sealing Washers
These washers are rated to withstand pressure up to 100 psi. They are one-piece rubber-to-metal bonded washers that create a stronger seal than metal or rubber alone. Made of 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic. The silicone seal has excellent weather resistance. Washers are reusable.
For technical drawings and 3-D models, click on a part number.
Inch
Inch
Max. Pressure, psi | Temperature Range, °F | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Thick. | For Fluids | For Gases | Min. | Max. | Hardness | Seal Hardness | Seal Color | Each | |
18-8 Stainless Steel with Silicone Rubber Seal | ||||||||||||
| No. 6 | 0.123" | 0.55" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 00000 |
| No. 6 | 0.123" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 6 | 0.123" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 8 | 0.175" | 0.55" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 8 | 0.175" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 8 | 0.175" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 10 | 0.2" | 0.55" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 10 | 0.2" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| No. 10 | 0.2" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 1/4" | 0.265" | 0.75" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 1/4" | 0.265" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 1/4" | 0.265" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 5/16" | 0.325" | 0.75" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 5/16" | 0.325" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 5/16" | 0.325" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 3/8" | 0.385" | 0.75" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 3/8" | 0.385" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 3/8" | 0.385" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 1/2" | 0.485" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 1/2" | 0.485" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 7/16" | 0.422" | 1" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
| 7/16" | 0.422" | 1.5" | 0.047"-0.109" | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Green | 000000000 | 0000 |
Metric
Metric
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 | Each | |
18-8 Stainless Steel with Silicone Rubber Seal | ||||||||||||
| M3 | 2.9 | 14 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 00000 |
| M3 | 2.9 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M4 | 3.9 | 14 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M4 | 3.9 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M5 | 4.9 | 14 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M5 | 4.9 | 19.1 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M5 | 4.9 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M6 | 5.9 | 19.1 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M6 | 5.9 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M8 | 7.8 | 19.1 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M8 | 7.8 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M10 | 9.8 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
| M12 | 11.8 | 25.4 | 2-2.1 | 100 | 100 | -100° | 400° | Rockwell B80 | Durometer 50A | Red | 000000000 | 0000 |
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.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
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. | |
18-8 Stainless Steel with Neoprene Rubber Seal | ||||||||||
| No. 6 | 0.150" | 0.375" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 000000 |
| No. 8 | 0.180" | 0.375" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 8 | 0.180" | 0.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.375" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 10 | 0.200" | 0.625" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| No. 10 | 0.200" | 1.125" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 5 | 000000000 | 0000 |
| No. 12 | 0.240" | 0.375" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 12 | 0.240" | 0.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| No. 12 | 0.240" | 0.625" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| No. 12 | 0.240" | 0.750" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 25 | 000000000 | 0000 |
| 1/4" | 0.260" | 0.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 100 | 000000000 | 00000 |
| 1/4" | 0.275" | 0.625" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| 1/4" | 0.275" | 0.750" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 25 | 000000000 | 0000 |
| 1/4" | 0.275" | 1.000" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 0000 |
| 5/16" | 0.330" | 0.625" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 50 | 000000000 | 00000 |
| 5/16" | 0.330" | 0.750" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 25 | 000000000 | 0000 |
| 3/8" | 0.434" | 0.750" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 25 | 000000000 | 0000 |
| 3/8" | 0.434" | 1.000" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 0000 |
| 1/2" | 0.532" | 1.000" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 10 | 000000000 | 0000 |
| 5/8" | 0.650" | 1.188" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 5 | 000000000 | 00000 |
| 3/4" | 0.810" | 1.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 5 | 000000000 | 00000 |
| 7/8" | 0.910" | 1.500" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 5 | 000000000 | 00000 |
| 1" | 1.040" | 2.000" | 0.084"-0.114" | -40° | 250° | Durometer 65A | Black | 1 | 000000000 | 0000 |
Fastener Kits for Enclosures
Mount components to your enclosure without worrying about leaks—these kits seal out water from washdowns, rain, and snow when used with enclosures rated NEMA 4X. They’re made of stainless steel, so they won’t corrode in outdoor or corrosive environments.
| Thread Size | Length | For Enclosure Environmental Rating | Material | Seal Material | For Hole Size | Required Installation Torque, in.-lbs. | Number of Pieces | Includes | Specifications Met | Each | |
| 8-32 | 1/2" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.177" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 000000 |
| 8-32 | 1" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.177" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 00000 |
| 10-32 | 1/2" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.201" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 00000 |
| 10-32 | 1" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.201" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 00000 |
| 1/4"-20 | 5/8" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.266" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 00000 |
| 1/4"-20 | 1" | NEMA 4X, NEMA 12 | 18-8 Stainless Steel | Neoprene | 0.266" | __ | 151 | Rounded Head Screws (50 Pieces) Sealing Washers (50 Pieces) Nylon-Insert Locknuts (50 Pieces) L-Key (1 Piece) | UL Listed, CSA Certified | 0000000 | 00000 |
| 3/8"-16 | 1" | NEMA 4X, NEMA 13 | 18-8 Stainless Steel | Neoprene | 13/32" | 150 | 30 | Hex Head Screws (10 Pieces) Sealing Washers (10 Pieces) External-Tooth Locknuts (10 Pieces) | UL Recognized Component, CSA Certified | 0000000 | 00000 |