Stud - 4-40 x 1/2 inch press fit
4-40 thread x 1/2 inch overall press fit PEM stud with 11/64 inch head diameter.
Flat head machine screw is used on ramps, flaps and mechanical assemblies. Press them into a drilled or punched hole with an arbor press or similar pressure tool.
Also known as self-clinching studs, ribs under the head hold the stud firmly in place.