1. NYLOC – nut with elastic nylon insert that prevents it from unthreading by accident. 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。
2. To do so you need to loosen the top 3/8 nut and back it off without unthreading the threaded rod from the spider . 压缩弹簧。要这样做,就要松开顶部3/8英寸螺母并拿开,不要旋松星轮上的螺纹杆。