Horizontally adjusting keel and adjusting screw thereof

The invention provides a keel designed for horizontal adjustment and an adjusting bolt thereof. The keel comprises a keel body, wherein the keel body is a cuboid, the central axis of the keel body is provided with a height adjusting hole penetrating the keel body, the height adjusting hole can be a Chinese character 'Tu'-shaped through hole, and is provided inside with an adjusting nut and closely connected with a fastening nut, a coaxial inner hole of the adjusting nut and a fastening coaxial inner hole of the fastening nut are in threaded connection through a screw rod, and the height between the keel and the ground can be adjusted by adjusting the screw rod, the adjusting bolt is provided with a positioning plate provided with a mounting hole, the adjusting bolt is connected with the ground through the positioning plate, the keel is supported by the screw rod, so that the keel has the advantages of convenient adjustment and flattening and high precision, and can simplify the prior complicated mounting proc