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About product and suppliers:
        Alibaba.com offers 4,949 big head screws products. About 24% of these are screws. 

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

There are 4,955 big head screws suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of big head screws respectively. 

Big head screws products are most popular in Western Europe, Eastern Asia, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 993 with ISO9001, 218 with Other, and 157 with ISO14001 certification.