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About product and suppliers:
        Alibaba.com offers 5,046 machine screw head slotted products. About 55% of these are screws, 1% are self-drilling screws, and 1% are tapping screws. 

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

There are 5,042 machine screw head slotted suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 97%, 2%, and 1% of machine screw head slotted respectively. 

Machine screw head slotted products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 2,529 with ISO9001, 501 with Other, and 182 with ISO14001 certification.