A screw having a wing-shaped head designed for manual turning without a driver or wrench. The type-D styles are manufactured in two pieces with the stamped winged head portion welded to the shank. Applications/Advantages: For use in applications where the fastener is frequently adjusted and where tightening torque greater than that achieved with finger pressure is not required. Greater torque can be applied manually turning a wing screw than a thumb screw because of the wider head.