Precision-grade shoulder diameters have a tolerance of 0.0005 to 0.0015 in. below the nominal size for inch-size screws and 0.013 to 0.038 mm below nominal for metric sizes.

The Basics of Shoulder Screws (.PDF Download) Dec. 22, 2015 Shoulder screws, also known as shoulder bolts and stripper bolts, are machine screws with an integral shoulder or journal between the ...