Anti-loosing bolt component capable of presetting torque and controlling disassembly

An anti-loosing bolt component capable of presetting torque and controlling disassembly, comprising:

• a nut, a bolt and a tab washer that match each other;
• wherein a radial annular flange is arranged at one end of the nut close to a fastener, or at one end of a screw cap of the bolt close to the fastener, an annular groove is provided at an annular middle position of an end face where the annular flange is located, a ratchet structure is arranged at a bottom surface of the annular groove, and an elastic pawl matched with the ratchet structure is arranged at the tab washer;
• or wherein an axial groove is arranged at a screw rod of the bolt;
• and a horizontal protrusion matched with the axial groove is arranged at the tab washer;
• or wherein a vertical protrusion that is folded toward the fastener is arranged at the tab washer;
• wherein the horizontal protrusion and the vertical protrusion are provided with a prefabricated notch.