CAMO 1/4-in x 4-in Tan Epoxy Flat-Head Exterior Structural Wood Screws (250-Pack) in the Lag Screws department at Lowes.com
Faux Steel I-BEAM Nut/Bolt Set - Black
Amazon.com: 15x3-1/2" Black Wafer Head Structural Lag Screws. Used for Log Construction, Timber Framing, Laminated Beams and Pole Barns Among Other Uses. T-30 Torx/Star Drive (~50 Count) : Grocery & Gourmet Food
Beam Support Screws, pkg/6 - Nelson Automatic Waterers