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About product and suppliers:
        Alibaba.com offers 2,721 self tapping machine screw products. About 73% of these are screws. 

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

There are 2,710 self tapping machine screw suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 94%, 4%, and 1% of self tapping machine screw respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 2,022 with ISO9001, 304 with ISO14001, and 237 with Other certification.