Atlas AETS-616, Nutsert Insert, 3/8-16 UNC-2B, Material Thickness (.030-Up) Round Nutsert Splined, Low Profile Head, Steel, Cadmium ClearNutSerts Swaging Low Profile Head Inserts are versatile threaded fasteners that can be used in a variety of applications. Use Nutserts Swaging Low Profile Head Inserts in any thickness of metal or rigid material of at least 3/32" (.0937). Eliminate the need for tapping, welding and brazing. NutSerts Swaging Low Profile Head Inserts design consists of an upper sleeve and a base which both and internal and external threads. During installation the base is drawn upwards inside the upper sleeve forcing a 360âˆž contact between the sleeve and application material. No special preparation is needed; a drilled or punched hole is all that is required. Because of its unique setting ability, NutSerts Swaging Low Profile Head Inserts can be used in almost any thickness of material. Installation is made easy with a variety of tools and kits.