SCREW HAVING AUXILIARY DISASSEMBLING HOLE

摘要

PURPOSE: A screw having auxiliary disassembling hole is provided to permit the screw head to be easily disassembled even when the screw groove formed at the screw head is abraded. CONSTITUTION: A screw(20) comprises a screw head(21) having a screw groove(21a); and a screw body(22) having a screw thread(22a), and which rotates in a predetermined direction so as to be coupled/disassembled to/from a coupling part. The screw head has a pair of through holes(21b) for insertion of a disassembling tool including an L-shaped wrench(W), such that the screw head is rotated in a predetermined direction when the screw groove formed at the screw head is worn out due to frequent assembling or disassembling work.