Bolt connector

A bolt connector configured to connect two bolts, the bolt connector comprising:

• a high nut that includes a female screw portion, opposite end portions of the female screw portion each being configured to receive one of the bolts;
• and
• two springs, each of the springs having a portion thereof inserted into a respective one of the end portions of the female screw portion and each of the springs having a portion thereof extending outside the high nut in a lengthwise direction of the high nut, wherein
• the female screw portion is formed configured to have a larger diameter than an outer diameter of the bolt, and
• each spring is formed into a shape in which the respective inserted portion of each of the springs is in contact with threads of the respective end portion of the female screw portion into which each spring is inserted and also configured to be in contact with a male screw portion of one of the bolts in a state in which one of the bolts or the high nut is rotated and fastened, and the bolt connector is configured so that there is still a portion of each of the springs extending outside the high nut in a lengthwise direction of the high nut in the state in which one of the bolts or the high nut is rotated and fastened.