EX-32.A 10 wdfc-20230831xex32_a.htm EX-32.A
Exhibit 32(a)
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
I, Steven A. Brass, Chief Executive Officer of WD-40 Company (the “Company”), have reviewed the Annual Report on Form 10-K of the Company for the fiscal year ended August 31, 2023 (the “Report”). For purposes of Section 1350 of Title 18, United States Code, I certify that to the best of my knowledge:
(1)the Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and
(2)the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: October 23, 2023 |
| /s/ STEVEN A. BRASS
| Steven A. Brass President and Chief Executive Officer