| 摘要 |
A shaft, a factory head, and a conical recess form a rivet. The shaft is cylindrical and includes a diameter, a first end, and a second end, the second end having a deformable portion to form a shop head. The factory head is connected to the first end of the shaft and has a diameter greater than the diameter of the shaft. The conical recess is preformed in the factory head coaxial with the shaft and narrows while extending into the factory head towards the shaft. The conical recess has an angle between 100 degrees and 135 degrees and a depth between 0.0254 centimeters and 0.1016 centimeters.
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