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ICC-ES AC344 – Acceptance Criteria for Riveted Connections of Cold-formed Steel Structural Members Using Self-piercing Rivets


ICC-ES AC344 establishes the requirements for riveted connections of cold-formed steel structural members using self-piercing rivets to be recognized in an ICC-ES evaluation report under the International Building Code (IBC).

The scope of AC344 includes:

  • Materials: it specifies the acceptable types of cold-formed steel members, self-piercing rivets, and washers for the riveted connections.
  • Design and construction: it outlines the design and construction requirements for the connections, including the minimum edge and spacing distances, the number of rivets required for different load conditions, and the installation procedures.
  • Performance: it defines the performance criteria that the connections must meet, such as the shear strength, tensile strength, and combined shear and tensile strength under various load conditions.
  • Testing: it details the testing procedures and protocols for evaluating the performance of the connections, including shear tests, tensile tests, and combined shear and tensile tests.

By defining these criteria, AC344 ensures that riveted connections of cold-formed steel structural members using self-piercing rivets meet the necessary standards for safety and performance in building construction. It provides confidence to building officials, designers, and builders that these connections are suitable for their intended applications.

ICC-ES AC344 Accredited Inspection Agency

Applied Testing & Geosciences, LLC is accredited for performing inspections using the ICC-ES AC344 acceptance criteria.

Contact us for more information.



cold-formed steel; riveted connection; self-piercing rivet; shear strength; tensile strength; building code; testing