Provided is a screw fastener provided with the function of a torque limiter which allows a high limit value to be set for the fastening torque without increasing the size thereof or the spring force of the spring member, and is easy to assemble and service. A multiple plate torque limiter is formed by a plurality of drive disk members (50) and a plurality of driven disk members (52) between a first member (10) and a second member (30), and the first member (10) and the second member (30) are detachably joined to each other by a retaining screw (22).