Iron + small screw with large diameter flat washer, nickel-plated
A washer is incorporated into the screw. Since the washer does not come off the screw, it saves the trouble of setting the washer and improves work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.
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basic information
Size range: M2-M5
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
Steel is widely used as a 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 like chromium and molybdenum, depending on the application for shape, strength, and corrosion resistance. Nickel plating, which has a mirror-like luster, is widely used for decorative purposes. Its rust resistance is superior to chromate treatment or trivalent chromate treatment. To enhance adhesion to screws and improve rust resistance, 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.
![[Knowledge of Plating] Points to Note When Applying Electroless Nickel Plating to Castings](https://image.mono.ipros.com/public/product/image/5df/2001026556/IPROS55806418073782214576.png?w=280&h=280)
