3d (1-1/4") Simpson Ring Shank Roofing Nail - 316 Stainless Steel, 25 lb. Pkg Quik Drive Wood-To-Steel Screws Column Size: Intended for use

Column Size: Intended for use with 4-inch diameter lally columns and Quad 2x10/12 girders

this screw features underhead nibs and a Type 17 fast-start point that drive easily and countersink smoothly into wood deck boards

Lumber Size: Intended for use with 8x beams and 8x posts/columns and includes necessary SDS screws for quick installation

Its retrofit design allows for seamless installation without removing or disrupting existing pipes

3d (1-1/4") Simpson Ring Shank Roofing Nail - 316 Stainless Steel, 25 lb. Pkg Quik Drive Wood-To-Steel Screws Column Size: Intended for useSimpson ring shank roofing nails have a large flat head to provide extra bearing surface to firmly secure roofing material.