Frishauf, Holtz, Goodman & Chick, P.C.
Screw having a temporary holding member on the screw shank
A screw capable of simplifying an assembly work and shortening a release hole for causing the screw to abut thereagainst and of clamping a part being clamped with a high sealing property. The screw comprises a temporary holding member 12 provided on a screw shank 1 for temporarily holding the screw on a part being clamped, and the temporary holding member 12 is a molding of plastics formed on an intermediate, outer periphery of the screw shank 1 and comprises elastic blade pieces extending radially and provided on an outer periphery of a short cylinder portion having a female thread portion matching a male thread 8 of the screw shank 1. 
Aoyama Seisakusho Co., Ltd.
F Y F Y
F16B Y10S F16B Y10S
inventional additional additional additional
Hiromichi Muneyuki Hiroyasu Katsuhisa
Mizuno Onogi Ichikawa Kato