| 摘要 |
PROBLEM TO BE SOLVED: To solve the conventional defect that, when a member having a threaded part is subjected to ordinary dip plating, it is necessary to cut a thread again using a screw tap, etc., after the plating because the plating is applied also to the threaded part. SOLUTION: In the auxiliary tool for dip plating for the member having the threaded part, followings are used: one and the other cylindrical tools which are brought into contact with both end faces of the threaded-hole part of the member having the threaded part and close the threaded-hole part; and a bolt which penetrates the above one cylindrical tool and the threaded-hole part and is screwed to the above other cylindrical tool. Further, bevels are provided to respective end faces of the above one and other cylindrical tools to be brought into contact with both ends of the threaded-hole part. The above other cylindrical tool is a nut tool having a threaded hole with a closed end.
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