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General fastener standards include dictionaries of terminology, abbreviations, and designations applicable to multiple types of fasteners, across multiple applications and industries, serving as a foundation for more nuanced standards that are then free to delve into the specifics of a specific type of fastener to be used in a specific application. Additionally, standards have been developed for quality assurance to promote both thoroughness and fairness in assessments.

ISO 898 - Mechanical Properties of Fasteners Package

ISO 898 - Mechanical Properties of Fasteners Package

The ISO 898 - Mechanical Properties of Fasteners Package specifies the mechanical and physical properties of carbon and alloy steel bolts, screws, nuts and studs. This package is applicable to bolts, screws, nuts and studs with triangular ISO metric screw thread, coarse pitch thread, 6H thread tolerances and more. The ISO 898 - Mechanical Properties of Fasteners Package includes: ISO 898-1:2013 ISO 898-2:2022 ISO 898-5:2012 ISO 898-7:1992

ISO 8992:2005

Fasteners - General requirements for bolts, screws, studs and nuts

ISO 8992:2005 specifies the general requirements for standardized bolts, screws, studs and nuts, but is also recommended for these non-standardized fasteners.


Clearance Holes for Metric Threaded Fasteners

This Recommended Practice presents clearance holes for metric threaded fasteners. It is in essential agreement with ISO 273. The differences are that the ISO standard does not include clearance holes for tapping screws and the recommended hole tolerances are slightly simplified over those suggested in the ISO standard.

SAE AS 5054A-2005 (SAE AS5054A-2005)

Areas for Calculating Stress or Load Values for Externally and Internally Threaded Fasteners ( Reaffirmed: Feb 2004 )

This standard specifies the areas to be used in calculating stress or load values to be used in externally and internally threaded fastener procurement specifications for bolts, screws, nuts, and studs and for the information of designers.

SAE AS 85731B-2015 (SAE AS85731B-2015)

Fastener, Positive Locking, Electronic Equipment, General Specification For

This specification covers positive locking fasteners intended for use in aircraft to secure electronic line replaceable units (LRUs).

SAE MAP 1753B-2018

Hole Sizes, Recommended for Metric Fasteners on Propulsion Equipment

To establish recommended hole sizes for use with protruding head metric threaded fasteners primarily used on propulsion equipment and provide the recommended positional tolerance for use with these holes.


As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.