Huasi head drill tail screw

spot sales:countersunkSelfDrilling Screw ，flat head self drillingscrew，Galvanized self drillingscrew Hex drilling screw ，Hex flange drilling screw ，pan head self drillingscrew ，Stainless steel self drilling screws ，washer head screw ，wafer head self drilling screw

Fine workmanship widely used