Patent ID: 7726924

Claim:
A connecting structure, comprising: a first metal element; a second metal element; and a threaded weld bushing, the threaded weld bushing including a main body welded to the first metal element with a plurality of weld joints, a collar extending from one end of the main body for abutting the first metal element and connecting to the second metal element, and a fastener latching portion defined in the main body and the collar; and a fastener for engaging with the fastener latching portion so as to prevent the second metal element detaching from the threaded weld bushing; wherein a thickness of one of the first metal element and the second metal element is less than 0.8 millimeters, and a hardness of the first metal element and a hardness of the second metal element are both larger than 90 on the Rockwell Hardness B scale, the weld joints are created by laser welding.