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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.
Use washers with a rubber seal under partially threaded screws or bolts that have a smooth shaft under the head. They are reusable. Washers with a Buna-N rubber seal have excellent abrasion resistance and good oil, weather, and chemical resistance. Washers with a Fluorocarbon rubber seal resist chemicals and withstand high temperatures.
Washers with PVC sealant create an impervious 360° seal around your fastener’s threads when tightened. They are not reusable.
Zinc-plated steel washers are corrosion resistant in wet environments. 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 | Temp. 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. 4 | 0.102" | 0.25" | 0.035"-0.045" | 7,000 | 200 | -10° | 240° | Rockwell B105 | Durometer 60A | Black | 10 | 000000000 | 000000 |
No. 6 | 0.13" | 0.385" | 0.036"-0.044" | 10,800 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 10 | 000000000 | 00000 |
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 | 0.18" | 0.443" | 0.045"-0.055" | 6,200 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
1/4" | 0.24" | 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" | 0.76" | 0.045"-0.055" | 3,600 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
1/2" | 0.49" | 0.88" | 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" | 0.74" | 1.322" | 0.059"-0.069" | 5,700 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 5 | 000000000 | 00000 |
7/8" | 0.864" | 1.51" | 0.059"-0.069" | 6,000 | 200 | -30° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
1" | 0.988" | 1.76" | 0.059"-0.069" | 7,000 | 200 | -40° | 225° | Rockwell B71 | Durometer 55A | Black | 1 | 000000000 | 0000 |
1 1/8" | 1.106" | 1.885" | 0.059"-0.069" | 4,900 | 200 | -10° | 240° | Rockwell B105 | Durometer 60A | Black | 1 | 000000000 | 0000 |
1 1/4" | 1.229" | 2.01" | 0.059"-0.069" | 4,600 | 200 | -10° | 240° | Rockwell B105 | Durometer 60A | Black | 1 | 000000000 | 0000 |
304 Stainless Steel with PVC Plastic Sealant Seal | |||||||||||||
No. 6 | 0.148" | 0.495" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 00000 |
No. 8 | 0.175" | 0.495" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 00000 |
No. 10 | 0.205" | 0.56" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 25 | 000000000 | 00000 |
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" | 0.81" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 10 | 000000000 | 0000 |
7/16" | 0.445" | 0.89" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 5 | 000000000 | 0000 |
1/2" | 0.51" | 0.99" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B75 | __ | Black | 5 | 000000000 | 0000 |
304 Stainless Steel with Fluorocarbon Rubber Seal | |||||||||||||
No. 6 | 0.13" | 0.385" | 0.035"-0.045" | 4,900 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 10 | 000000000 | 00000 |
No. 8 | 0.156" | 0.385" | 0.035"-0.045" | 4,400 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 10 | 000000000 | 00000 |
No. 10 | 0.18" | 0.443" | 0.042"-0.052" | 4,400 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 5 | 000000000 | 00000 |
1/4" | 0.24" | 0.505" | 0.045"-0.055" | 3,900 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 5 | 000000000 | 00000 |
5/16" | 0.301" | 0.603" | 0.045"-0.055" | 3,700 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 5 | 000000000 | 00000 |
3/8" | 0.364" | 0.666" | 0.045"-0.055" | 3,400 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 5 | 000000000 | 00000 |
7/16" | 0.427" | 0.76" | 0.045"-0.055" | 3,200 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 5 | 000000000 | 00000 |
1/2" | 0.49" | 0.88" | 0.045"-0.055" | 3,300 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 0000 |
9/16" | 0.552" | 1.067" | 0.045"-0.055" | 3,600 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 0000 |
5/8" | 0.615" | 1.193" | 0.045"-0.055" | 3,600 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 00000 |
3/4" | 0.74" | 1.322" | 0.059"-0.069" | 3,300 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 00000 |
7/8" | 0.864" | 1.51" | 0.059"-0.069" | 3,200 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 00000 |
1" | 0.988" | 1.76" | 0.059"-0.069" | 3,200 | 200 | 0° | 390° | Rockwell B90 | Durometer 75A | Black | 1 | 000000000 | 00000 |
316 Stainless Steel with PVC Plastic Sealant Seal | |||||||||||||
No. 4 | 0.124" | 0.396" | 0.05"-0.06" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
No. 6 | 0.148" | 0.495" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
No. 8 | 0.175" | 0.495" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 0000 |
No. 10 | 0.205" | 0.56" | 0.06"-0.07" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 20 | 000000000 | 00000 |
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" | 0.81" | 0.077"-0.087" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 10 | 000000000 | 0000 |
1/2" | 0.51" | 0.99" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 5 | 000000000 | 00000 |
5/8" | 0.639" | 1.135" | 0.085"-0.095" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
3/4" | 0.77" | 1.28" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
7/8" | 0.893" | 1.44" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |
1" | 1.018" | 1.6" | 0.105"-0.115" | 8,500 | 8,500 | -60° | 270° | Rockwell B77 | __ | Black | 1 | 000000000 | 0000 |