Knob clip, also called an insert. If the clip is missing from the knob check on the control stem.
Clamp & screw kit for blower wheel
Sheet metal screw with hex head, sold as a package of 12
Screw hinge cover
Inner Door Liner Screw
Screw, 6-32 x 5/16
Screw Pkg of 12
Screw 8-18 ab flt 9/16 sn