Iron cup screw + small screw with flange, nickel-plated
This is a screw that adds two functions to a pan head screw: a flat washer (large seating surface) and a spring washer (for preventing loosening). It enhances vibration resistance and increases the anti-loosening effect. The cup screw is a registered trademark of Nitto Seiko Co., Ltd. It is compliant with EU-RoHS standards.
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basic information
Size range: M2-M4
Price information
Delivery times vary depending on the quantity. Same-day shipping is possible at the earliest. Please feel free to contact us.
Delivery Time
※Delivery times vary depending on the quantity. Same-day shipping is possible at the earliest. Please feel free to contact us.
Applications/Examples of results
Iron (steel) is widely used as a steel material for screws due to its easy availability, strength, and toughness. Based on carbon steel, which primarily consists of iron (Fe) and carbon (C), alloy steels are used that have undergone heat treatment or have additives such as chromium and molybdenum, depending on the application in terms of shape, strength, and corrosion resistance. Nickel plating is a widely used decorative plating that has a mirror-like luster. Its rust prevention capability is superior to chromate treatment and trivalent chromate treatment. To enhance adhesion to screws and improve rust prevention, a copper plating is applied as a base layer under the nickel plating.
Company information
Wilco sells various fastening components, including screws, as well as professional tools. Please feel free to contact us regarding custom products, custom processing, and the issuance of various certificates and documents related to other products.