X0306 4/A 2020-01-27 2020-01-28 0 0000815556 FASTENAL CO FAST 0001454708 Ancius Michael J 151 COACHLITE COURT ONALASKA WI 54650 1 0 0 0 Common Stock 2020-01-27 4 P 0 740 34.94 A 22525 D The footnote in the Form 4 filed on 1/28/2020 inaccurately identified the number of shares maintained in the reporting person's revocable trust and self directed IRA. The correct amount of shares maintained in the reporting person's revocable trust over which the reporting person and his wife share voting and investment power is 17,630 shares and 4,895 shares are attributed to his self directed IRA. /s/ John J. Milek, Attorney-in-Fact 2020-02-24