A shear pin assembly for securing to a face sheet of a honeycomb core sandwich panel structure and to engage a support structure, which includes a head member having a first width dimension and a neck section secured to the head member with the neck section having a second width dimension less than the first width dimension. Further included is a flange secured to the neck section with the flange extending in a direction away from the neck section and a pin member which extends from the flange in a direction away from the head member.