ANTI-THEFT SCREW AND WRENCH

摘要

An anti-theft screw and a wrench. The screw comprises a head (10) and a rod (11) connected to the bottom of the head. The head has a recess (12). The side wall of the head comprises a linear part corresponding to the recess and an arced part that connects the two ends of the linear part. The wrench comprises a socket (20) that matches the screw head and a handle (21) that connects to the top of the socket. The socket has an open bottom and a closed top. The inner wall of the socket is provided with a projection (22) that matches the recess on the screw head. The anti-theft screw is simple in structure and has good anti-theft feature.