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About product and suppliers:
        Alibaba.com offers 33,774 black bolts and nuts products. About 38% of these are bolts, 8% are nuts, and 1% are washers. 

A wide variety of black bolts and nuts options are available to you, such as free samples, paid samples. 

There are 33,751 black bolts and nuts suppliers, mainly located in Asia. The top supplying countries or regions are China, Taiwan, China, and India, which supply 99%, 1%, and 1% of black bolts and nuts respectively. 

Black bolts and nuts products are most popular in North America, South America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 14,276 with ISO9001, 3,694 with Other, and 2,785 with ISO14001 certification.