https://www.hollowrivet.com/product/rivets/
Hollow rivets are a type of mechanical fastener with a partially hollow shaft, which allows for deformation during installation, securing materials together. Due to their design, hollow rivets offer several advantages over traditional solid rivets, including reduced weight and material usage, making them particularly useful in applications that require a balance between strength and lightness. In sectors such as aerospace and automotive manufacturing, hollow rivets help to reduce overall weight, improving fuel efficiency and reducing emissions. However, the mechanical performance of hollow rivets must be verified through various testing methods to ensure their long-term reliability.