ASTM F788-20
Standard Specification for Surface Discontinuities of Bolts, Screws, Studs, and Rivets, Inch and Metric Series
- Standard No.
- ASTM F788-20
- Release Date
- 2020
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM F788/F788M-20e1
- Latest
- ASTM F788/F788M-20e1
- Scope
- 1.1 This specification establishes allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of bolts, screws, studs, and rivets including heat-treated machine screws, tapping screws, and sems (the washers of screw-washer assemblies are excluded). This specification covers metric series products with nominal diameters of 4 mm and larger and with specified minimum tensile strengths of 420 MPa and higher; and inch series products with nominal diameters of No. 5 (0.1250 in.) and larger and with specified minimum tensile strengths of 60 000 psi and higher. 1.2 When the engineering requirements of the application necessitate control of surface discontinuities on bolts, screws, studs, or rivets, the purchaser shall specify conformance to ASTM Specification F788, in the original inquiry and purchase order. 1.2.1 When the engineering requirements of the application necessitate that surface discontinuities on bolts, screws, studs, and rivets be controlled within limits closer than those specified in this specification, the purchaser shall specify the applicable limits in the original inquiry and purchase order. 1.3 The allowable limits established in this specification for metric bolts, screws, and studs with nominal diameters from 4 to 24 mm inclusive, are essentially identical with requirements given in ISO 6157 ⁄I. There are no ISO standards for surface discontinuities on any inch-series products, or for rivets. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.5 This 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.
ASTM F788-20 Referenced Document
- ASTM E340 Standard Practice for Macroetching Metals and Alloys*， 2023-11-15 Update
- ASTM F1470 Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection*， 2024-01-26 Update
- ASTM F1789 Standard Terminology for F16 Mechanical Fasteners*， 2023-11-01 Update
- ISO 6157 Fasteners; surface discontinuities; part 3: bolts, screws and studs for special requirements
ASTM F788-20 history
- 2023 ASTM F788/F788M-20e1 Standard Specification for Surface Discontinuities of Bolts, Screws, Studs, and Rivets, Inch and Metric Series
- 2020 ASTM F788-20 Standard Specification for Surface Discontinuities of Bolts, Screws, Studs, and Rivets, Inch and Metric Series
- 2018 ASTM F788-13(2018) Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2013 ASTM F788-13 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2012 ASTM F788-12 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2008 ASTM F788/F788M-08 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2007 ASTM F788/F788M-07 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2006 ASTM F788/F788M-06 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2005 ASTM F788/F788M-05 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 2002 ASTM F788/F788M-02 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- 1997 ASTM F788/F788M-97 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
