FIELD: construction.
SUBSTANCE: double safety cap for bolt and nut, open from one side for separation of bolt and nut from environment by closing of bolt and nut, includes the external cap and the internal cap, each of which is made of synthetic plastic by die casting. The elements protruding from the external forming surface of the internal cap with a certain step and passing along the length of the internal cap which are inserted into the elements of a plug-in groove formed with a certain step and passing towards the length inside on the external cap and the triangular ledge formed on the end section of each fixing element protruding radially from the forming surface of the lower part of the internal cap inside it.
EFFECT: increase of durability of safety cap.
7 cl, 11 dwg
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