The CCOS provides a high-capacity connection for column-to-beam combinations. This design without the column straps was created specifically for field welding to a steel column. For faster installation, the CCOS requires that Simpson Strong-Tie Quik Drive® screws be used to attach the column cap to the column cap plate. CCOS Column Cap Only (No Straps) for Triple 2×10/12 (Pack of 4).