lock nut
lock nut 保险螺母; 防构螺帽; 防松螺帽; 锁锭螺母; 锁定螺母; 锁紧螺帽; 止动螺母 nut lock 螺帽保险; 螺帽固定器; 螺帽锁; 螺母保险; 螺母固定器; 螺母锁紧装置 .
bearing locknut
hex locknut
high idle screw locknut