Simpson 5-1/8 in Beam 6X Post Black End Column Cap ECC5 1/4-6PC DWC Drywall Screw (Collated) Why is double-shear nailing important

Why is double-shear nailing important in this post cap

Attaching to existing hardened concrete or wet concrete

exposed beams for decks and porches and 7 sheets of 1/2" plywood with one pass

specify W3 (3 1/4" to 7 1/8") and add an "X" to the end of the core model name

Simpson 5-1/8 in Beam 6X Post Black End Column Cap ECC5 1/4-6PC DWC Drywall Screw (Collated) Why is double-shear nailing importantThe Simpson Strong Tie ECC5 1 4 6PC End Column Cap is engineered to deliver reliable column to beam connections in end of beam applications throughout wood construction. Designed with a seat that extends beyond one side of the column, this black powder coated steel cap provides an additional surface area of bearing to effectively distribute load from the beam while providing critical support at the connection point. Built from heavy duty 3 gauge steel