1.1This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) 0.060 through 0.625 thread sizes, flat countersunk (SFHCS) 0.060 through 1.5 thread sizes and low (SLHCS) 0.1120 through 0.625 thread sizes head cap screws having material properties for high-strength requirements.
1.2Fasteners meeting this specification are intended for shear-type applications and have tensile requirements ranging from 122 to 150 ksi.
1.3The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.4The hazard statement applies only to the test method section, Section 11, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.