J-bolt is a J-shaped bolt (J), also called a J-screw. It is a screw with a thread at the top. The bottom part is a curved hook. It is often used in structural work, such as attaching the superstructure to a concrete foundation. The bent end is a hook to hold the rebar and cast it in concrete so that the structure above can stand.

The material used is usually steel shaft due to its strength properties. Some jobs may prefer to use galvanized types to increase corrosion resistance.

Materials used

Because the J-bolt must be able to support the weight of the foundation, the most popular material used is steel shaft.

  • SS400
  • S45C
  • Galvanized steel shaft
  • Stainless steel

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