Combination screws are made up of machine screw or tapping screw, washer.
Combination screw used to thin metal plate connection between, Phillips combination screw, hex head bolt combination screw and tapping combination screw USES, and the corresponding phillips screw, hexagon head bolts and self tapping screw USES the same. The main characteristics of these combinations screw is all with corresponding washer, use rise very convenient
Now a monthly production of thirty million combination screw ability, since its establishment has been the first in product quality,. Service second, and price the third of the enterprise purpose, to continuously improve the excelsior development route and tried to implement ISO9001:2000 quality management system to establish the perfect company management mode to achieve the enterprise's development goals.
Carbon steel, alloy steel ,stainless steel ,brass, and so on.