| 摘要 |
A shaft (12), a factory head (16), and a conical recess (18) form a rivet (10). The shaft (12) is cylindrical and includes a diameter (D S ), a first end (20), and a second end (22), the second end (22) having a deformable portion (25) to form a shop head (39). The factory head (16) is connected to the first end (20) of the shaft (12) and has a diameter (D F ) greater than the diameter of the shaft (D S ). The conical recess (18) is preformed in the factory head (16) coaxial with the shaft (12) and narrows while extending into the factory head (16) towards the shaft (12). The conical recess (18) has an angle (A R ) between 100 degrees and 135 degrees and a depth (L) between 0.0254 centimeters and 0.1016 centimeters. |
