shear the slotted web further presents a reduced web area through which heat or sound may be conducted and slots in which insulation is received both increasing resistance to heat and sound transfer slots and supplemental flanges may also be provided in the stud primary flanges the primary flanges may include a fold back portion under a line of flexure presenting two layers through which an attaching screw must pass under that line of flexure that retains the screw in the primary flanges application_number US 201113107888 A description the slotted metal stud 10 of the present invention is intended for use in conventional construction of stud walls such as a stud in a wall as a building joist 100 and in forming a truss 80 in the conventional manner of wall and building construction a plurality of studs are spaced apart vertically in parallel between horizontal floor joists and ceiling joists 100 typically a channel stud header 102 connected to the ceiling joists 100 and opening downward receives upper ends 11 of the studs 10 similarly a channel stud footer 104 connected to the floor joists 100 and opening upward receives lower stud ends 13 because the joists 100 are required to support a lateral or transverse load they are larger and stronger than the studs 10 which support a compressive or.