Annular parts for steel chains

The utility model relates to annular part for a steel chain, which comprises two C-shaped elements having the same structures, wherein each C-shaped element has a gap, and both sides of the gaps are respectively provided with a hole near the ends. The C-shaped elements corresponding to the gaps are respectively provided with a lug which is slightly smaller than the length of the gap; a plurality of convex parts and concave parts are arranged on each C-shaped element, and accordingly, the two C-shaped elements are correspondingly combined; the convex parts and the concave parts are matched and positioned. The C-shaped elements on both sides of each lug are respectively provided with screw holes corresponding to the holes. After the two C-shaped elements are correspondingly combined, screws penetrate through the holes and are locked in the screw holes in order to fix the two C-shaped elements; well heat treatment can be carried out on the surfaces of the C-shaped elements, and higher strength can be obtained.