ELECTRIC GROUNDING STUD, ELECTRIC GROUNDING SYSTEM FOR AUTOMOBILE, AND WELDING STUD ASSEMBLING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a welding stud, allowing easy fixing of an electric terminal without using a nut requiring a tool, and a protective cap capable of keeping the terminal contact portion of the stud clean when coating a vehicle panel having the stud fixed thereto. ;SOLUTION: An electric grounding welding stud 23 includes a cylindrical body elongated in a longitudinal direction, a head and a neck having a reduced diameter, and has spiral threads projecting from the body. The threads are arranged at predetermined intervals in the lateral direction. Each of the threads surround around the body at less than 360° in a spiral manner. In order to prevent the threads of the welding stud 23 from being polluted during coating, a protective cap 121 is provided with a cylindrical portion 123, an integral hinge 125 and a pawl 127, and is fitted detachably to the stud.;COPYRIGHT: (C)2000,JPO