Bowl washers(countersunk washer), also known as solid fish eye washers, are a type of finishing washer designed to provide a smooth, finished appearance over a countersunk fastener. They are particularly useful in applications where a flush finish is required, such as in automotive, aerospace, and high-end furniture manufacturing.

Carbon Steel: Typically used for general applications. 

Stainless Steel: For environments where corrosion resistance is required. 

Alloy Steels: Used in applications requiring high strength or high temperature resistance.

Advantage:

Aesthetic Appeal: Bowl washers provide a neat and professional-looking finish to countersunk screw applications, enhancing the overall appearance of the joint.

Protection: They protect the surface from damage caused by the screw head, especially in materials that are prone to indentation or scratching.

Scope of Application

Automotive Industry: Used in the assembly of vehicles where a flush and aesthetically pleasing finish is required for screws and bolts.

Aerospace: Employed in aircraft construction for a combination of strength and low weight, providing a flush finish on critical components.

Furniture Manufacturing: Utilized in high-end furniture that uses countersunk screws for a clean, finished look.