廣杉計器 Product Lineup

■Features - This is a flat washer made of EPDM (ethylene propylene rubber). - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - The washer is a thin, disc-shaped component with a hole in the center for the screw to pass through. - By inserting a flat washer between the screw and the workpiece, the contact area is increased, reducing the surface pressure on the material, which helps maintain a consistent fastening force, prevents loosening of the screw, protects the fastening surface from damage, and stabilizes the seating surface. - It refers to flat washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

■Features - This is a flat washer made of silicone rubber with a hardness of 70°. - Washers are generally used by placing them between a screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for the screw to pass through. - By inserting a flat washer between the screw and the workpiece, the contact area is increased, reducing the surface pressure on the material, thereby maintaining a certain fastening force and preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

■Features - This is a flat washer made of urethane rubber. - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for the screw to pass through. - By placing a flat washer between the screw and the workpiece, the contact area is increased, reducing the surface pressure on the material, thereby maintaining a certain fastening force, preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

■Features - It is a flat washer made of fluororubber. - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for the screw to pass through. - By placing a flat washer between the screw and the workpiece, the contact area is increased, reducing the surface pressure on the material, thereby maintaining a certain fastening force, preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

■Features - This is a flat washer made of Hane Night material. - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for passing the screw through. - By inserting a flat washer between the screw and the workpiece, the seating area is enlarged, reducing the surface pressure on the target material, thereby maintaining a certain fastening force, preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS (6 substances).

■Features - This is a flat washer made of Hane Night (V-0). - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for passing the screw through. - By placing a flat washer between the screw and the workpiece, the seating area is enlarged, reducing the surface pressure on the target material, maintaining a certain fastening force, and preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

■Features - This is a flat washer made of silicone rubber 50. - Washers are generally used by placing them between the screw and the workpiece when tightening screws, to prevent loosening of the screw, protect the fastening surface from damage, and stabilize the seating surface. - Washers are thin, disc-shaped, and have a hole in the center for the screw to pass through. - By inserting a flat washer between the screw and the workpiece, the seating area is expanded, reducing the surface pressure on the target material, thereby maintaining a consistent fastening force, preventing loosening of the screw, protecting the fastening surface from damage, and stabilizing the seating surface. - Refers to flat washers, round washers, round washers, and plain washers (sometimes abbreviated as "W"). - Compliant with EU-RoHS2.

Are you having trouble ensuring insulation, strength, and corrosion resistance in high-temperature and chemical environments? Hirozaki Instruments offers over 110,000 mechanical parts that support the reliability of your equipment, available for immediate delivery. [Strengths of Hirozaki Instruments] Extensive lineup: Spacers, washers, bushings, insulated screws, and more. Diverse materials: We can select optimal parts with excellent insulation, heat resistance, and chemical resistance according to the usage environment, reducing design challenges and risk of defects. [Comprehensive Development Support] Flexible response: We accommodate small orders during the prototype stage and custom designs. Free samples: We provide free samples to verify performance. Free catalog: Our catalog covers material, dimensions, and performance information, contributing to efficient selection. Please make use of Hirozaki Instruments' high-performance parts to enhance the reliability of your equipment. We accept requests for free catalogs and inquiries for custom designs.

■Resin (Insulation) Washers At Hirose Instrument Co., Ltd., we offer a wide range of "resin washers" essential for protecting fastening parts, insulation measures, and gap adjustments. You can choose the optimal material and size according to the designer's intent, from general insulation applications to demanding environments requiring chemical resistance, heat resistance, and shock absorption. ■Available Shapes - Flat Washers: For general fastening and protection. - Set Washers: Ensure reliable protection of the fastening surface and stabilize the seating surface. - Rosette Washers: Securely and beautifully fix the heads of screws, such as pan screws. 【Custom Orders & Support】 We also accept modifications to standard sizes (screw diameter, length, mounting dimensions, effective screw length, etc.) and the production of custom items based on drawings. Free Catalog Shipping: Ships as soon as the same day after application. Contact Us: Feel free to reach out for specifications consultation, sample requests, and more.

■Product Lineup You can choose from a variety of materials and surface treatments tailored to the environmental conditions (strength, corrosion resistance, conductivity) of the fastening parts. - Stainless Steel (SUS303/SUS304): High strength and excellent corrosion resistance. Available in degreased and black baked finish types that excel in aesthetics and anti-reflective properties. - Iron (Trivalent Chromium Chromate): Highly versatile and offers excellent cost performance for fastening applications. - Brass: Excellent conductivity, ideal for fastening in electrical equipment. Available in nickel-plated and non-plated types. - Aluminum: Lightweight and non-magnetic. Options for raw and black baked finishes are available. - Pure Titanium: Highly corrosion-resistant, high strength, and ultra-lightweight. Suitable for harsh industrial environments, durable equipment, and marine devices. - Phosphor Bronze: Combines spring properties and conductivity for special environments. 【Related Products】 - Resin Washers: For insulation, prevention of galvanic corrosion, and weight reduction. - Rubber Washers: Needed for shock absorption and sealing. 【Custom Orders & Support】 We also accept size modifications for standard products and the production of custom items based on drawings. Free Catalog Shipping: Ships as soon as the same day from the application. Contact Us: Feel free to reach out for product specifications, sample requests, and more.

■ Rubber Washers (Diverse Materials and Extensive Size Range) At Hirose Instrument Co., Ltd., we offer essential "rubber washers" for improving sealing at fastening points, absorbing vibrations, and providing cushioning, available in a wide range of materials. You can precisely select the optimal material according to the application and installation environment, including oil-resistant NBR, highly weather-resistant EPDM, heat-resistant fluororubber, and vibration-absorbing Hane-Nite. ■ Product Lineup Details 1. Flat Washers This standard shape accommodates general fastening as well as sealing in special environments. Size Range: 18 sizes (Inner diameter Φ3 to Φ20) 2. Set Washers These ensure uniform surface pressure during fastening and reliably protect and seal the seating surface. Available Materials: NBR, Silicone Rubber (50°) ■ Material Selection Guide by Application - When oil resistance is required: NBR, Urethane - For weather resistance and outdoor use: CR, EPDM - When heat resistance is required: Fluororubber, Silicone Rubber - When vibration and shock absorption is desired: Hane-Nite (a special rubber with high vibration absorption properties)