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About product and suppliers:
        Alibaba.com offers 40,079 hex head screw products. About 72% of these are screws, 15% are bolts, and 1% are self-drilling screws. 

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

There are 40,079 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 Mid East. 

You can ensure product safety by selecting from certified suppliers, including 20,629 with ISO9001, 3,567 with ISO14001, and 1,333 with Other certification.