4d (1-1/2") Annular Ring Shank Spiral Roofing Nail - 304 Stainless Steel, 1 lb. Pkg STandoff Bases These anchors are designed to

These anchors are designed to drive straight into concrete without needing sleeves or inserts

Double-Barrier Coating – Resists corrosion in wet

Simpson Annular Ring Shank Common Nails

These screw anchors are intended for exterior applications and some interior pressure-treated wood sill plate applications

Metal stud framing

4d (1-1/2") Annular Ring Shank Spiral Roofing Nail - 304 Stainless Steel, 1 lb. Pkg STandoff Bases These anchors are designed toSimpson ring shank roofing nails have a large flat head to provide extra bearing surface to firmly secure roofing material. A spiral "thread" on the shank causes the nail to spin during installation, creating a thread like interlock with the wood.