12-1/2" Flat Top Channel Bracket - 304 Stainless Steel HUC/HUCQ Concealed Face Mount Hangers and the larger-diameter anchor holes

and the larger-diameter anchor holes are for 1/4"-diameter concrete screw anchors

Lumber Size: Intended for use with 3-1/8x beams and 6x posts/columns

reducing spin-out and leaving a clean

providing a stable and reliable connection

Simpson Strong-Tie Titen HD Concrete Screws are engineered for superior performance in cracked and uncracked concrete and masonry

12-1/2" Flat Top Channel Bracket - 304 Stainless Steel HUC/HUCQ Concealed Face Mount Hangers and the larger-diameter anchor holes12 1 2" Flat Top Channel Bracket 304 Stainless Steel connects directly to a vertical channel and provides structural support while also distributing loads. Used for applications like shelving, tray support, or adjustable racking. 304 Stainless Steel provides excellent corrosion resistance primarily for exterior use.