Contact pin and socket for inspection

A contact pin comprising:

• a plurality of contacts having electrical conductivity, each of the contacts extending from a base end to a tip and having an elastic deformation part formed between the base end and the tip, and the elastic deformation part being elastically expandable and compressible in an extending direction;
• and
• two casings having electrical conductivity,
• wherein the plurality of contacts are laterally stacked adjacent to each other and movable independent of each other,
• wherein the casings bundle the plurality of laterally stacked contacts, and the casings are in contact with the contacts so as to form a path bypassing the elastic deformation part,
• wherein each casing has a first plate-like part and a second plate-like part that face each other and between which the laterally stacked contacts are arranged,
• wherein in a state where both the casings overlap with each other,
• the first plate-like part of one of the casings faces the second plate-like part side of the other of the casings, and
• the second plate-like part of each of the casings faces the laterally stacked contacts.