These are solid copper rivets, not copper-plated base metal. Copper rivets and fasteners are commonly used in manufacturing applications due to their strength after cold-heading, corrosion resistance, and antimicrobial properties. We enhance the strength of our copper products through the cold forming process, making them ideal fasteners for various applications. Copper is also valued for its decorative appearance, making it suitable for functional items, and its electrical conductivity makes it well-suited for electrical applications. Material: Copper alloy Shank Diameter (D): 2mm (5/64 inch) Shank Length (L): 10mm (25/64 inch) Head Diameter (A): 3.1mm (1/8 inch) Head Thickness (B): 1.6mm (1/16 inch) Color: Copper Tone Net Weight: 75g Package Content: 100 pcs x Copper Alloy Solid Rivet Note: Lighting and display differences may cause slight variations in color between the item and the image. Measurement error is +/- 1-3mm.