This Standard covers the complete general and dimensional data for the various styles of slotted head cap screws and square head and slotted headless set screws recognized as American National Standard. Also included are appendices covering thread runout sleeve gages for cap screws, protrusion gaging of flat countersunk head cap screws, formulas on which dimensional data are based, and wrench openings for square head set screws. It should be understood, however, that where questions arise concerning acceptance of a product, the dimensions in the tables shall supercede those recalculated by formula.  The inclusion of dimensional data in this Standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult with suppliers concerning availability of products.