Exhibit 32.2

Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

I, James A. Mallak, Vice President and Chief Financial Officer of Atkore International Holdings Inc. ("the Company"), hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Quarterly Report on Form 10-Q of the Company for the three months ended December 27, 2013 (the “Report”), as filed with the Securities and Exchange Commission, 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 Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: February 7, 2014	/s/ James A. Mallak
	James A. Mallak
	Vice President and Chief Financial Officer (Principal Financial Officer, Principal Accounting Officer)