m16螺杆尺寸图,m16螺母尺寸图

耐高温peek外六角螺丝m3m4m5m6m8m10m12m16 防腐蚀peek螺钉高强度螺栓
m16 不锈钢内六角螺丝gb70杯头螺丝不锈钢圆柱头内六角螺栓 7折 m16*
定制镀锌牙条丝杆通丝全牙螺杆螺纹杆 m3m4m5m6m8m10m12m14m16m18m20
m16/m18/m20镀锌内六角螺钉8.
5m3m4m5m6m8m10m12m14m16m18 m4(厚度2.2mm)(50个)316不锈钢