Pursuant to Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned members of the "Johnson Family Group" hereby agree to file with the Securities and Exchange Commission Amendment No. 3 to Schedule 13D (the "Amendment"). The Schedule 13D, as amended by the Amendment, reports that members of the Johnson Family Group believe it is in the best interests of Hastings Manufacturing Company ("Hastings"), its shareholders, its employees and the local community that Hastings remain an independently owned corporation and further states that Johnson Family Group members intend to oppose any takeover attempt that would result in Hastings no longer remaining an independently owned corporation and which is not in the best interest of Hastings, its shareholders, its employees or the local community. The undersigned agree that the Amendment is filed on behalf of each of them. This Agreement may be executed in any number of counterparts, which taken together shall constitute one and the same document.

Date: May 3, 2000	/s/ Stephen I. Johnson*  STEPHEN I. JOHNSON
	THE STEPHEN I. JOHNSON TRUST
Date: May 3, 2000	By  /s/ Stephen I. Johnson*        Stephen I. Johnson, Trustee
Date: May 3, 2000	By /s/ Isabel S. Johnson*        Isabel S. Johnson, Trustee
Date: May 3, 2000	/s/ Isabel S. Johnson*  ISABEL S. JOHNSON
	THE ISABEL S. JOHNSON TRUST
Date: May 3, 2000	By /s/ Isabel S. Johnson*        Isabel S. Johnson, Trustee