Simpson 6x Beam, 6x Post End Column Cap, HDG w/SDS Screws ECCQ66-SDS2.5HDGModel No. ECCQ66 SDS2. 5HDG Beam Width (in.) 5 1 4, 5 1 2 Dimensions W1 (in.) 5 1 2 Dimensions W2 (in.) 5 1 2 Dimensions L (in.) 8 1 2 Dimensions H (in.) 7 Material. 7 gauge Steel Finish. Hot Dip Galvanized SDS Screws included. Beam (14), Post (14) 1 4" x 2 1 2" SDS Screws Product Guide & SPECS : View Specifications The ECCQ is designed to provide strong column beam connections in end of beam applications in wood construction. The seat of the column