The common iron bolts include round mouth half space center iron bolt, small flat head solid core iron bolt, small flat head half space center iron bolt, round mouth solid core iron bolt, sunk stone Lok Chi bolt, step iron bolt, iron knock letter nail and iron cross bolt, etc. Round mouth aluminum bolts are mainly used for riveting places with large transverse loads. Countersunk head aluminum bolts are generally used for riveting places where the surface layer needs to be smooth and smooth and the load of aluminum iron open rivets is not large, and the half space center aluminum bolts are generally used for non-metallic rivets. Because the material of iron bolt is unique, it is necessary to carry out special metal surface treatment generally. With its convenient riveting materials, high cost-effective price and rich and colorful metal surface treatment, the iron bolt has an influence that can not be surpassed in the bolt sales market, which is favored by many customers!

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