Light alloy fastener

The utility model discloses a light alloy fastener, and particularly relates to the technical field of fasteners, the light alloy fastener comprises a fastening plate, the bottom end of the fastening plate is provided with four through holes, a fastening screw is arranged in each through hole in a penetrating mode, the outer wall of each fastening screw is sleeved with an annular plate, the bottom of each annular plate is fixedly connected with the top of the fastening plate, and the top of the annular plate is fixedly connected with the top of the fastening plate. And five clamping blocks are fixedly arranged on the surfaces of the outer walls of the front side and the rear side of the fastening plate correspondingly, and the multiple clamping blocks and the fastening plate are integrally formed. The fastening screw is driven to be connected with a part on an aero-engine by screwing the semicircular shifting piece, the clamping blocks on the fastening plate are connected with the part of the aero-engine in a