Abstract: Disclosed is a device for supplying bolts having an improved bolt supply mechanism so as to enhance work speed and productivity as well as to prevent various interferences and troubles caused by driving a robot. The device for supplying bolts comprises a rotary magazine that indexes a plurality of bolts; and a nut runner having a driving bit that picks up a bolt in the rotary magazine one by one and performs a driving operation, wherein the rotary magazine has a turret that houses a plurality of bolts in a circumferential direction and positions a bolt in the nut runner by rotation.