7d (2-1/4") Simpson Wood Siding Nail - 316 Stainless Steel, Pkg 35 RCA223/54-R150 Flexible design: Roofjack size accommodates

Flexible design: Roofjack size accommodates pipes from 7" - 13"

The minimum effective shank length must equal or exceed the sum of the thickness of the attached material and the minimum embedment depth

Made from stainless steel

Zinc Nailon anchors are low-cost

7d (2-1/4") Simpson Wood Siding Nail - 316 Stainless Steel, Pkg 35 RCA223/54-R150 Flexible design: Roofjack size accommodatesSimpson wood siding nails are available in either type 304 or type 316 stainless steel. The checker pattern on the nail head blends well with wood grain, reduces glare from sunlight and accepts surface finishes. Annular ring shank increases pull out resistance to provide a secure attachment that reduces cupping of siding boards.