Introducing a washer that deeply embeds the rubber packing into the threaded part of the bolt, providing a strong seal for fluids!
At Sanwa Ai, we handle "seal washers." This is a set product that incorporates a rubber packing into a metal-formed bowl-shaped washer. The rubber packing is press-fitted onto the threaded part of the bolt, sealing the fluid at the side. We use SUS304, which is resistant to rust, as the standard material, and we offer packings made of NBR (standard specification), silicone, fluororubber, and EPDM. 【Features】 ■ Suitable for preventing gas and liquid leakage ■ Passed pressure tests of 200 atmospheres (20 MPa) ■ Provides sufficient performance even when used directly on the surfaces of black steel and cast iron ■ Vibration damping and sound insulation effects ■ The metal and rubber packing do not resonate with vibrations *For more details, please refer to the PDF materials or feel free to contact us.
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Sanwa Ai is a trading company specializing in the research and development of screws. From a single screw among 50,000 items to custom-made products, we respond to our customers' needs with the technology and know-how we have cultivated over half a century.
![Seal washer (washer) [*Can be used with various screw shapes!]](https://image.mono.ipros.com/public/product/image/97e/2000116997/IPROS7649733511254000959.JPG?w=280&h=280)
![Reduce labor and costs! Press processing as an alternative to cutting processing [thickening processing].](https://image.mono.ipros.com/public/product/image/f59/2000319620/IPROS2081679590688020052.jpg?w=280&h=280)
