这不是时事政治，可以自己主观判断。这是科学技术问题。
我之所以和你讨论，不是想证明自己对，是因为这事和安全有关，你自己的，还有和你有同样想法的人和有可能被你误导的人。
我学过理论力学、材料力学、结构力学、流体力学、金属材料学、金属加工工艺、等等。全还给老师们了，但终归是学过的。
下面一段话，不是我说的，供参考：
For a layman, you shouldn't use bolts stressed in shear. Bolts seldom hold shear forces. Bolts are used to hold two surfaces together so that the joined components take the shear stress. It is the friction of the two surfaces that support the load. This is the principle that holds wheels on automobile hubs. The friction of hub to the wheel takes the forces, not the shear strength of the studs.
ETA: As @r13 comments, the engineering work of using friction of the joined pieces is to determine the required friction, the required bolt tension, number of bolts, the required bolt torque to get that tension, bolt specifications, etc. I consider this beyond the layman level。
总之，这个问题我们都说明了自己的观点。到此结束！
