Introducing a washer that strongly seals fluids with a rubber packing that deeply embeds into the threaded part of the bolt!
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 at 200 atmospheres (20 MPa) ■ Demonstrates sufficient performance even when used directly on the surface of black steel and cast iron ■ Vibration-damping and sound-absorbing effects ■ 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 one screw among 50,000 items to custom-made products, we respond to our customers' needs with the technology and know-how cultivated over half a century.