X0305 4 2012-05-18 0 0000815556 FASTENAL CO FAST 0001454708 Ancius Michael J 151 COACHLITE COURT ONALASKA WI 54650 1 0 0 0 Common Stock 2012-05-18 4 P 0 500 42.64 A 5405 D Common Stock 220 I Owned by Son Common Stock 210 I Held in child custodian account Shares jointly owned with reporting person's spouse. Includes 5030 shares held jointly with spouse. The reporting person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that the resporting person is the beneficial owner of the securities for Section 16 or any other purpose. /s/ John J. Milek, Attorney-in-Fact 2012-05-21