EXHIBIT 99.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Key Tronic Corporation (the “Company”) on Form 10-Q for the period ended March 29, 2003 as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), I Ronald F. Klawitter, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1. The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

2. The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 13, 2003

/s/    RONALD F. KLAWITTER        

Ronald F. Klawitter

Executive Vice President of Administration,

Chief Financial Officer and Treasurer

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Key Tronic Corporation (the “Company”) on Form 10-Q for the period ended March 29, 2003 as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), I Jack W. Oehlke, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1. The Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

2. The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated: May 13, 2003

/s/    JACK W. OEHLKE        

Jack W. Oehlke

President and Chief Executive Officer