' Rod Hanger, Steel, Finish Zinc-Climaseal, Thread Size Internal 3/8 In.-16, External 1/4-20, Overall Length 3-1/2 In., Thread Direction Internal Right, External Right, Thread Type Imperial, Color Silver/Silver, Class UNC, Temp. Range (F) -30 to 300, Yield Strength (PSI) 1, 100, Tensile Strength 1400, Rockwell Hardness Screw HRC 35, For Use With #14 (Black) Nut Driver, Installs Vertically into Drywall or Prestressed Concrete for Hanging Threaded Rod., Package Quantity 25 '