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About product and suppliers:
        Alibaba.com offers 7,064 hex bolt machinery products. About 1% of these are thread rolling machines, 1% are other auto parts. 

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

There are 7,064 hex bolt machinery suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of hex bolt machinery respectively. 

Hex bolt machinery products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 3,681 with ISO9001, 778 with ISO/TS16949, and 552 with Other certification.