Simpson ECC5 1/4-4 End Column Cap 5-1/8 in Beam 4x Post Expansion Anchors and you have a system

and you have a system that not only provides hidden strength

Simpson CCO4 CCO Column Cap (No Legs) for 4x Beam

Why is stainless steel used for this column cap

Replacement bits are available in bit packs

Simpson ECC5 1/4-4 End Column Cap 5-1/8 in Beam 4x Post Expansion Anchors and you have a systemThe Simpson Strong Tie ECC5 1 4 4 End Column Cap is an engineered connector designed to provide strong column to beam connections in end of beam applications in wood construction. The seat of the column cap provides an additional surface area of bearing that extends beyond one side of the column, helping to distribute the load from the beam while providing reliable support for the connection. Built from 3 gauge steel with a Simpson Strong Tie gray