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About product and suppliers:
        Alibaba.com offers 643 thru bolt products. About 17% of these are bolts, 4% are anchors, and 2% are screws. 

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

There are 638 thru bolt suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 97%, 1%, and 1% of thru bolt respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 354 with ISO9001, 23 with Other, and 12 with ISO/TS16949 certification.