甚至在螺母松脱45度的情况下，其一半以上的锁紧扭矩仍然不变。
Even when loosened by 45 degrees, more than half of the tightening torque remained.
更重要的是，在这种情况下进行振动测试，螺母没有出现松脱现象。这表明即使螺母没有完全扭紧，其自锁效果仍然存在。
What's more, when a vibration test was performed in this condition, no loosening occurred, indicating that a self-locking effect is present even if the nut is not fully tightened.
自锁螺母- 螺母丝口内嵌入了一种弹性尼龙物，防止意外松脱。
NYLOC – nut with elastic nylon insert that prevents it from unthreading by accident.
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