To provide an easily attachable hinge eliminating troubles with attaching hinges, such as for cutting a door or a body part with a tool to secure the hinges in place or asking an owner of a router to make holes.

A pivot pin is provided with a leaf 2, a pin hole 3 and attaching holes 4. The cut angled part of the leaf 2 is brought into intimate contact with corners of the door A and the body B to secure the hinge 1 in place and enable screws in the attaching holes 4 to be stably fastened. An unpinned hinge is attached to either one of the door A or the body B and a pinned hinge is attached to the other. The unpinned and pinned hinges are similarly provided at several parts of the door A and the body B.