PIN PENETRATED INTO BASE BODY, MANUFACTURE OF PIN AND FASTENING TOOL EQUIPPED WITH PIN

摘要

PROBLEM TO BE SOLVED: To provide a steel pin axially penetrated into a base body, a steel washer used together with the pin and a fastening tool equipped with the steel pin and the steel washer. SOLUTION: A steel pin 100 is formed of a carbon steel wire including carbon in the range of a carbon content of about AIST C 1038 steel to a carbon content of about AISI C 1065 steel and having a predetermined length having an initial diameter. Preferably, the carbon steel wire is an AISI C 1065 steel wire. The steel pin 100 is equipped with a head 110, a taper shank 120, an end part 130 and a transition region 140.