hexagon castle nut 六角槽顶螺母
hexagon thin castle nut 六角冠状薄螺母
light castle nut 轻型堡形螺帽
castellated nut castle nut 槽形螺母
castle circular nut 六角圆顶螺母 ; 六角圆螺母
castle e nut 城堡螺母 ; 开花螺母
N a hexagonal nut with six slots in the head, two of which take a locking pin to hold it firmly in position 槽顶螺母
应用推荐