These are copper(not copper plated base metal) solid rivets. Strength after cold-heading, corrosion resistance, and antimicrobial properties Copper solid rivets; Size:M6 x 25; 6mm Shank Diameter, 25mm Shank Length Strength after cold-heading, corrosion resistance, and properties. Due to its decorative appeal, copper is an Good material for manufacturing functional items, and its conductivity makes it perfect for use in electrical applications. Corrosion Resistant Solid Copper Fasteners Uxcell 100 Pack 1/8 " X 35/64" Round Head Fasteners Copper Solid Rivets Strength after cold-heading, corrosion resistance. Conductivity of copper makes Copper Solid Rivet perfect for use in electrical applications. Our copper... Conductivity of copper makes Copper Solid Rivet perfect for use in electrical applications. Descriptions:These are copper (not copper plated base metal) solid rivets. MS20615-5CU14 | Solid | Copper | Military Copper Solid Rivets are a good choice for electrical properties and corrosion resistance.