Concrete anchor is unified by bolt, gasket and anchor hexagonal head. When the anchor is screwed into the mounting hole, the anchor thread is cut into the base material to realize anchorage. Materials such as 10.9 grade steel and 410 stainless steel are available for selection. The surface treatment is electrogalvanized, which can be used in ordinary environment; Concrete self-attacking anchor bolt is used in cracking concrete, non-cracking concrete, dense structure of natural stone and other substrates, through objects and other medium or light load fixed. The concrete self-tapping anchor bolt is easy to operate and easy to install. The quick anchorage with small margin and small spacing is particularly excellent. It can be completely removed after installation and used for temporary anchorage.