ASME B18.2.1-1996_1999, Square and Hex Bolts and Screws, Inch Series

An American Society of Mechanical Engineers standard covering dimensional and general requirements for inch-series square and hex bolts and screws.

ASME B18.2.1-1996_1999, Square and Hex Bolts and Screws, Inch Series, provides standardized requirements for the dimensions and characteristics of inch-series square and hex bolts and screws. It is intended for engineers, designers, manufacturers, inspectors, and procurement professionals who need consistent fastener specifications for mechanical and industrial applications.

Application Scope: Inch-series square and hex bolts and screws used in mechanical equipment, structural assemblies, manufacturing, maintenance, and industrial procurement.