EXHIBIT 32.1

STANLEY BLACK & DECKER, INC.

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 Stanley Black & Decker, Inc. (the “Company”) on Form 10-Q for the period ending September 28, 2024 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Donald Allan Jr., President and Chief Executive Officer, certify, pursuant to 18 U.S.C. ss. 1350, as adopted pursuant to ss. 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Donald Allan, Jr.

Donald Allan, Jr.

President & Chief Executive Officer

Date: October 29, 2024