Screw rebar for threaded alloy products

摘要

PROBLEM TO BE SOLVED: To reduce a movement amount relative to a screw reinforcement when a large tension is imparted thereto while allowing the range of error of the screw reinforcement in a screwing hardware screwed to the screw reinforcement and fixed with a filler.;SOLUTION: A fixing hardware 10 comprises a cylindrical part 11 to which the screw reinforcement is screwed and an annular flange part 12 extending from the cylindrical part 11 in the radial outer direction. A female screw part 14 for screwing with the screw reinforcement is formed in the inner periphery of the cylindrical part 11. The width of threads in the intermediate area of the female screw part 14 is widest. The width is narrowed toward both ends of the female screw, and narrowest in the areas near the both ends.;COPYRIGHT: (C)2007,JPO&INPIT