Belonging to a company nut for volt/bolt ahead tight frame sword

摘要

(57) Abstract Objective The volt/bolt ahead the sword of the tight frame vis-a-vis, the spiral shellfish it sticksThe ru belonging to a company nut smoothly the Inlaying put it is something which is closed. Constitution Bottom of female screw of belonging to a company nut and bottom of nutThe concave condition guide of the diameter which is somewhat larger than diameter of the female screw with the surface partUpper part half of the peripheral face section of thing and the nut which formed the section the headIt is the configuration which was formed in conical form.