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About product and suppliers:
        Alibaba.com offers 37,873 hex head screw products. About 67% of these are screws, 19% are bolts. 

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

There are 37,873 hex head screw suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of hex head screw respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 19,724 with ISO9001, 4,880 with ISO14001, and 2,625 with Other certification.