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Top 10 enterprises of self drilling screws in China.

Handan Shuangzi Metal Products Co., Ltd is a professional manufacturer of drilling screw and tapping screw enterprises. Since its establishment, the company has been focusing on the production and R&D of drilling screw, which has built a modern, high standard, scale, variety of professional production line of drill tail screw. All used equipment are imported from Germany, Japan and Taiwan, with an annual output of high quality, multi-variety drill tail screw .The employed the top domestic technologist, in hexagon-shaping、clipping、thread-rolling、carburize、zinc plated、washer machine、package and other processes, every link strives for perfection and the best.

Our advantages

We have our own factory, so we can offer the best price and guarantee the best quality !