Stainless Steel 303 Spacer Hexagonal Male Thread for Socket Head Cap Screw with Spring + Flat Washer Included / WSU-BA
This product is a spacer made of stainless steel SUS303, which has excellent machinability. One end is designed for flat head screws, while the other end is pre-assembled with a spring washer and a flat washer. This achieves a flat finish with the flat head screw and improves work efficiency through the incorporation of washers. Since there is no need to prepare and attach washers individually, it reduces assembly labor and prevents human errors such as forgetting to attach parts. Additionally, the high rigidity and strength of SUS303 material provide stable holding power even under pressure during tightening, supporting long-term reliability. Thanks to the corrosion resistance characteristic of stainless steel, it is resistant to rust even in humid environments, maintaining quality over an extended period. It supports smart implementation with minimized screw head protrusion and efficient assembly work overall.
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basic information
■Specifications ・Material: Free-cutting stainless steel (SUS303) ・Treatment: Degreasing ■Spring Washer ・Material: Stainless steel; Treatment: Natural ■Set Washer ・Material: Stainless steel; Treatment: Natural ■EU-RoHS2 ・RoHS2 compliant ■Standards ・Screw diameter: M3
Price information
For more details, please check our 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 parts, industrial machinery, machine tool parts, water treatment machinery parts, 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.





