Digi-Key Electronics Datasheets for Shoulder Screws
Shoulder screws, also called stripper bolts, are a type of machine screw with integral threads that are only present on half or less of the screw shank. A shoulder screw has a partially smooth shaft that will allow the bolted material some rotation and movement around the screw axis, while the threaded end will typically have a nut to maintain the screw's position.
Shoulder Screws: Learn more