Simpson 6-1/8" Column Cap for 4" Outside Diameter Lally Column LCC6-4Model No. LCC6 4 Gauge. 12 Width (in.) 6 1 8 Lally Column Outside Diameter (in.) 4 Girder. Quad 2x10 12 Coating Material. Simpson Strong Tie Gray Paint The LCC is designed specifically to be welded to the lally column and attach to the girder. The column cap provides a higher capacity column to beam connection for new or replacement applications. Side plates capture the beam enabling a safer installation process than standard cap plates. Key Features