Blind rivets are fasteners that connect two or more metal parts together using riveting tools. It consists of a hollow rivet body and a core that can be pulled out. When the riveting is completed, the core will be pulled out, leaving the rivet body fixed in the material. There are many types of blind rivets, including round head blind rivets, flat head blind rivets, countersunk head blind rivets, etc., such as GB12615, GB12617, GB12618... The materials mainly include stainless steel, aluminum, etc., and the surface treatments include whitewashing, blackening, blue-white zinc and natural color, etc.