4d (1-1/2") Annular Ring Shank Spiral Roofing Nail - 304 Stainless Steel, 1 lb. Pkg STandoff Bases and other heavy-duty metal connections

and other heavy-duty metal connections

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

providing robust support and exceptional corrosion resistance for various construction applications

Double-Barrier Coating – Resists corrosion in wet

The 1-5/8" x 3-1/4" Solid Strut Channel 4 ft

4d (1-1/2") Annular Ring Shank Spiral Roofing Nail - 304 Stainless Steel, 1 lb. Pkg STandoff Bases and other heavy-duty metal connectionsSimpson 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.