High rigidity is hex bolts for wind-powered electricity generation

The utility model discloses a high rigidity is hex bolts for wind-powered electricity generation, including the first bolt head that connects gradually, second bolt head and screw rod, said first bolt head, second bolt head and screw rod are integrated into one piece, just first bolt head, the material of second bolt head and screw rod is the chrome-vanadium steel, the shape of the cross section of said first bolt head is the square, and the shape of the cross section of second bolt head is regular hexagon, side along the perpendicular to of second bolt head lie in the outside of the side of first bolt head in the orientation of the axis of screw rod, the center at the top of first bolt head is provided with the shrinkage pool. The utility model provides a hex bolts, in the narrow and small department in space, instrument (big or small spanner or allen key ) that can be not unidimensional according to circumstances adaptation carries out the dismouting bolt from different angles the hex bolts is made by the chrome-vanadium steel, and hardness is high, and then under the circumstances that the screw rod specification is confirmed, as the general connecting piece wide application that can change repeatedly inside wind generating set