PPS flat washer / PSW
This product is a flat washer made from PPS (polyphenylene sulfide), which has excellent heat resistance, flame retardancy, high rigidity, and dimensional stability. It is used by inserting it between the fastener and the material being fastened during the tightening of bolts and screws. By distributing the load when tightening screws over a wide area, it reduces the stress on the tightening surface, helps prevent dents and scratches on the counterpart material, and protects the seating surface. Additionally, using a flat washer stabilizes the fastening surface and supports the tightening condition of the bolts and screws. In addition to the excellent heat resistance, flame retardancy, and high mechanical strength and rigidity unique to PPS, it also possesses excellent chemical resistance, electrical insulation, and dimensional stability. This resin flat washer is suitable for fastening components in various industrial machinery, electrical and electronic devices, and equipment that require resistance to high temperatures, chemicals, and electrical insulation.
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basic information
■Specifications (Body thickness t=0.2, 0.3) - Material: PPS (Polyphenylene Sulfide) - Color: Light brown - Heat distortion temperature: 1.82MPa…112℃ - UL standard: UL94V-0 (equivalent product, material) ■Specifications (Body thickness t=0.5 and above) - Material: PPS (Polyphenylene Sulfide) - Color: Light brown - Heat distortion temperature: 1.82MPa…260℃ - UL standard: UL94V-0 (material) ■Size variations - Nominal diameter: For M1.7 / M2 / M2.6 / M3 / M4 / M5 / M6 / M8 / M10 / M12 / M16 / M18 / M20 / M24 ■EU-RoHS - Compliant with EU-RoHS2
Price information
For more details, please check our company website or catalog, or feel free to contact us.
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Applications/Examples of results
We offer a variety of products that can be used for various applications such as printed circuit board mounting, electronic component mounting, semiconductor mounting, relay terminal mounting, distribution board components, robot components, industrial machinery, machine tool components, water treatment machinery components, FA equipment, mobile communication, mobile mobility, and base station-related components.
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We, Hirosugi Instruments, are a comprehensive manufacturer of mechanical and electronics parts, dealing with spacers, terminals, washers, bushes, screws, and more. Our wide range of products boasts a diverse lineup that matches various applications, and we have received high praise from customers in various industries for providing multifunctional, high-quality products with short delivery times and low costs. From product development to design, procurement, and technical support, we provide one-stop support through our product offerings. ■ Company Features ■ 1: Offering a diverse selection of over 118,000 standard parts. 2: One of the largest spacer lineups in Japan. 3: Free shipping for orders over 3,000 yen (excluding tax). 4: Orders can be placed starting from a minimum lot of 50 pieces. 5: High-quality standard products at ISO levels. 6: Fast delivery from our own stock for all products. 7: Affordable pricing with cost control. 8: Support for issuing various certificates. 9: Actively supporting the production of custom products. 10: Providing consistent and specialized services.





