Exhibit 24.1

Consent of Independent Registered Public Accounting Firm

We have issued our reports dated November 28, 2005 accompanying the consolidated financial statements and schedules and management’s assessment of internal control over financial reporting included in the annual report of Insteel Industries, Inc. on Form 10-K for the years ended October 1, 2005, October 2, 2004 and September 27, 2003. We hereby consent to the incorporation by reference of said report in the Registration Statements of Insteel Industries, Inc. on Forms S-8 (File No. 3361887, effective September 5, 1995, File No. 33-61889, effective September 5, 1995, File No. 33-348011, effective March 16, 1998, File No. 333-30934, effective February 23, 2000 and File No. 333-123325, filed March 15, 2005).

GRANT THORNTON LLP

Greensboro, North Carolina
November 28, 2005

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