scope:

This standard is intended to cover 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 appendixes covering thread runout sleeve gages for cap screws, protrusion gaging of flat countersunk head cap screws; wrench openings for square head set screws, and formulas on which dimensional data are based. It should be understood, however, that where questions arise concerning acceptance of product, the dimensions in the tables shall govern over recalculation 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 manufacturers concerning the availability of products.