1.[SIZE]- Hat diameter: 7mm/0.28'; Head Diameter: 4mm/0.16'; Shank Length: 30mm/1.18' 2.[MATERIAL]- Made of quality copper material, which is of extremely high corrosion resistance and performance 3.[APPLICATION]- Copper solid rivets are cold-formed to improve the strength of copper products, which are ideal for electrical performance and corrosion resistance; Due to its decorative appeal, copper is an ideal material for manufacturing functional items, and its conductivity makes it perfect for use in electrical applications 4.[FEATURE]- Round Head Rivets can be hardened for some applications to improve strength and durability; And to fasten the rivet, the end of the shank is impacted, pressed or spun after the rivet has been inserted into a work-piece Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.