A conical pan-head hexagon socket bolt, which is composed of a tapered end, a hexagon socket blind hole, a screw, etc. The top of the cone end is equipped with a hexagon socket blind hole, and the six cross sections of the hexagon socket blind hole are arcs The bottom of the inner hexagonal blind hole is a tapered bottom. The outer surface of the tapered end is a tapered disc surface. The inner surface of the tapered end is a flat disc surface. The diameter of the tapered end is larger than the diameter of the screw. The diameter of the hexagonal blind hole is smaller than the diameter of the screw. The screw is provided with circular spiral threads, which are arranged at the same angle. Withstand a large tightening torque, the connection strength is high, and the tightening force is relatively large, which is beneficial to the components Connection and compact structure.

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