4d (1-1/2") Simpson Ring Shank Roofing Nail - 304 Stainless Steel, 1 lb. Pkg Ring Shank - Common Nails The Simpson QDPROLDHG2 auto-feed Underlayment/Backerboard

The Simpson QDPROLDHG2 auto-feed Underlayment/Backerboard attachment is designed to quickly and precisely install cement board to underlayment

Weather-Resistant Design: Built to withstand challenging environments and tough conditions

Allowable loads are the lesser of the values in the Hanger tables or the weld capacity

code-compliant support for engineered wood construction

4d (1-1/2") Simpson Ring Shank Roofing Nail - 304 Stainless Steel, 1 lb. Pkg Ring Shank - Common Nails The Simpson QDPROLDHG2 auto-feed Underlayment/BackerboardSimpson ring shank roofing nails have a large flat head to provide extra bearing surface to firmly secure roofing material.