A pin terminal (PT) is such that a cap (30) made of synthetic resin is attached to a tip part of a terminal main body (10) made of metal and in the form of a round pin. An attachment hole (21) including an uninterrupted and continuous peripheral wall over the entire circumference is perforated on the tip surface of the terminal main body (10), whereas a press-fitting portion (35) to be press-fitted into the attachment hole (21) is formed to project on the rear surface of the cap (30). An internal thread (23) is formed on the peripheral surface of the attachment hole (21), and a ridge portion (24) of this internal thread (23) constitutes a biting protrusion. The tip of the pin terminal (PT) is structured to form a smooth and tapered guiding portion (40).