Combined sealing screw

The utility model discloses a combined type sealing screw. The screw comprises a screw body and a copper gasket, wherein the screw body comprises a screw head part and a screw rod part, the screw headpart is connected with the screw rod part, the screw rod part is provided with a thread, a circle of annular groove is formed in one end, connected with the screw head part, of the screw rod part, the copper gasket is sleeved with the annular groove, and the diameter of an inner hole of the copper gasket is smaller than that of the thread of the screw rod part. According to the utility model, thesealing and anti-slipping requirements can be simultaneously met, so that the production efficiency is improved, and the consistency of products is ensured. 本实用新型公开了一种组合式密封螺钉，包括螺钉本体和铜垫片，所述螺钉本体包括螺钉头部和螺钉杆部，所述螺钉头部和螺钉杆部连接，所述螺钉杆部设有螺纹，所述螺钉杆部与螺钉头部连接的一端设有一圈环形槽，所述铜垫片套设在环形槽内，所述铜垫片的内孔直径小于螺钉杆部螺纹的直径。本实用新型可以同时满足密封和防滑落的要求，从而提高生产效率，保证产品的一致性。