head of the bolt

Abstract

1. Name of the designed product: head of bolt. 2. Use of the designed product: the whole of the designed product is used for a bolt, for example, a fastening bolt for a machining cutting tool for fastening a tool body and a blade for replacing a cutting tip for machining an inner diameter of a workpiece, a part for a head of a bolt as a partial design, and for insertion of a special wrench to rotate the bolt. 3. Design points of the designed product: in shape. 4. Picture or photograph best indicating the design points: Fig. 1. 5. Other circumstances or explanations: the part indicated by a solid line is a part as a partial design claimed, except for the part indicated by a dotted line.

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