February 21, 2019 Altenloh, Brinck & CO. U.S. Inc., received notification from DrJ Engineering that SPAX® PowerLags® fasteners are approved for use in multi-ply truss, sawn lumber and engineered wood product assemblies. SPAX® 5/16" PowerLags® with T-Star washer heads of lengths 3", 3-1/2", 4-1/2" 5", 6" and 6-3/4" have been tested for use in multi-ply assemblies of 2-ply, 3-ply and 4-ply applications. Pre-drilling or lead holes are not required for the installation of SPAX® PowerLags® in this application. For more information refer to DrJ TER No. 1802-03.