Steel spacer hexagonal, male thread with spring + flat washer included (trivalent chromium) / WSF-A
This product is a hex spacer with a screw and nut type design, pre-assembled with a spring washer and flat washer. It reduces the number of parts and significantly shortens assembly time. The surface is treated with trivalent chromium chromate to reduce environmental impact. It is environmentally friendly as it does not contain hexavalent chromium, while still providing stable protection against moisture and corrosion. Thanks to the excellent mechanical strength characteristic of steel materials, it maintains stable holding power even in structures subjected to vibration and load. Since the washers are pre-assembled, it prevents forgetting to attach the washers, ensuring effective prevention of screw loosening due to vibration and protection of contact surfaces.
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basic information
■Specifications ・Material: Free-cutting steel (SUM) ・Treatment: Trivalent chromium chromate ■Spring Washer ・Material: Iron ・Treatment: Trivalent chromium chromate ■Set Washer ・Material: Iron ・Treatment: Trivalent chromium chromate ■EU-RoHS ・RoHS2 compliant ■Standards ・Screw diameter: M3
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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 suitable for various applications, including printed circuit board assembly, electronic component assembly, semiconductor assembly, relay terminal assembly, distribution board components, robot parts, industrial machinery, machine tool parts, water treatment machinery parts, FA equipment, mobile communications, 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.





