Further, since the parallel thread part located at the hammered screws fore end is formed so as to have the small diameter, deformation and {HEAD ~ vibration} of {TAIL ~ the steel plate} and the like are decreased 
Further , since the parallel thread part located at the hammered screws fore end is formed so as to have the small diameter , deformation and { HEAD ~ vibration } of { TAIL ~ the steel plate } and the like are decreased
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH