ASTM A563 Grade A Low Carbon Steel finished full pattern hex nuts for general purpose fastening applications. Often referred to as "Grade 2" hex nuts, they are used with Grade 2 or A307 Gr.A steel Carriage and Hex bolts, Low carbon steel threaded rod and other applications that do not require a heat treated fastener. The zinc plated finish improves appearance and helps resist normal atmospheric corrosion. Also available in a Hot Dip Galvanized coating for use in marine environments or for use in exterior applications requiring additional corrosion resistance. They are also available in a plain uncoated finish for use where a plating is not required.
Meets the dimensional standards of ASME B18.2.2, and the mechanical properties of ASTM A563 Grade A. Thread fit meets the dimensional requirements of ASME B1.1, UNC, Class 2B.
