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About product and suppliers:
        Alibaba.com offers 37,912 hex head screw products. About 67% of these are screws, 19% are bolts, and 1% are drill bit. 

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

There are 37,912 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 18,773 with ISO9001, 4,642 with ISO14001, and 2,461 with Other certification.