ASME B18.2.1-1996 Square and Hex Bolts and Screws (Inch Series)

NY: The American Society of Mechanical Engineers, 2003. — 86 p.An American National Standard. The American Society of Mechanical Engineers (ASME). Revision of ANSI B18.2.1-1991. Date of Issuance: October 8, 1999. 86 p. This Standard covers the complete general and manufacturer and the purchaser. dimensional data for eight product types of inch series square and hex. bolts and screws recognized as American National Standard. Also included are appendixes cover- 1.4 Terminology ing thread miout sleeve gages, gaging procedure for checking bolt and screw straightness, grade markings for steel bolts and screws, formulas on which dimensional data are based, and a specification to assist in identifying a product as being a screw or a bolt. It should be understood, however, that where questions arise conceming acceptance of product, the dimensions in the tables shall govern over recalculation by fomula.