Fastener with self-locking threads

The fastener with the self-locking threads comprises a screw rod and a self-locking assembly, a bolt head is fixedly installed on the top of the screw rod, and the self-locking assembly is arranged on the side, close to the bottom, in the screw rod. The self-locking screw rod has the beneficial effects that when the screw rod is used, after the screw rod connects two workpieces through the arranged self-locking assembly, the screw rod is rotated to drive the moving block to move downwards, and the two inserting rods are pushed through the connecting rod to penetrate through the through groove and extend to the outer side of the through groove to further fix the positions of the two workpieces; even if the bolt head is rotated by mistake, the screw cannot be taken out, the situation that the connecting positions of the workpieces and the screw are loosened after a long time is prevented, and using is safer. 本实用新型公开了一种具有自锁螺纹的紧固件，包括螺杆和自锁组件，所述螺杆的顶部固定安装有螺栓头，所述螺杆的内部且靠近底部的一侧设置有自锁组件。本实用新型的有益效果在于，在使用螺杆时，通过设置的自锁组件，使得螺杆