螺母M12,

8级法兰母防滑螺母彩锌白锌/304不锈钢法兰螺母法兰螺帽m3m4m5-m12
t型螺母t型螺帽t型块m8m10m12m14m16m18m20m30t形螺母88级m6小号底宽
gb6176 10.9级细牙加厚六角螺母m12m14m16m18m20m22m24m30*1.5x2
定制10级反牙螺母左旋反丝反扣螺帽m10m12m14m16m20m24m27m30m36m64粗
304不锈钢螺母 六角螺帽 螺丝帽m3m4m5m6m8m10m12m14m16m18m20m24