For fastening to wood under-structure.  VersaBracket requires 2 or 3 screws, depending on the under-structure of the roof.

5/16” Cupped HWH is manufactured from a strong ZAMAC zinc-aluminum alloy. The head is molded, it is not a cap. The molded head encapsulates the EPDM washer, which fits neatly and conforms to the inside of the mold.