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About product and suppliers:
        Alibaba.com offers 2,709 self tapping screw machine products. About 72% of these are screws, 6% are drilling machines, and 2% are other metal & metallurgy machinery. 

A wide variety of self tapping screw machine options are available to you, such as free samples, paid samples. 

There are 2,697 self tapping screw machine suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 94%, 4%, and 1% of self tapping screw machine respectively. 

Self tapping screw machine products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 1,910 with ISO9001, 257 with ISO14001, and 210 with Other certification.