The invention wildlife for the purpose of combating high-voltage lines of the components of the electric cattle fence that is installed in a farm is easily fixed on the fixed and high-voltage lines, electric fence insulators of grace means. ; In other words, wild animals when configuring bolt coupling portion 200 of the electric fence insulators for high voltage lines, fixed reduction, bolt 130, but substituting with the nut provided with a metal 230, for screwing the metal nut 230 on the tie rod coupling groove 110 in contact with the protrusion 210 side, while the fluidity of the lower side is securely restricted, and the insertion opening of the nut ever possible in one direction the front side, and the center detent projection that limits can be stopped at the point at which the match, the bolt engaging groove 220 meet at a right angle to each other and the center of the metal nut to be inserted side after 240 is formed, the lower the bolt 130 the bolt through groove 250 for insertion through the locking slide way is formed the predetermined insertion depth is obtained by configuring the groove (260).
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