Top Grip Nut For Channel Strut

1/2″-13 UNC, Top Grip Nut for 1-5/8″ Channel Strut

1/4″-20 UNC, Top Grip Nut for 1-5/8″ Channel Strut

3/8″-16 UNC, Top Grip Nut for 1-5/8″ Channel Strut