ASTM A563-07a

Standard Specification for Carbon and Alloy Steel Nuts

ABSTRACT
This specification covers the chemical, mechanical, and dimensional requirements for eight grades (Grades O, A, B, C, D, DH, C3, and DH3) of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts. Steel materials and nuts shall be manufactured, processed, and formed as appropriate for their respective grades. Each grade of nut shall also conform to individually specified values for chemical composition, hardness, proof load stress, tensile stress areas, nominal size, and style.
SCOPE
1.1 This specification covers chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.
Note 1—See Appendix X1 for guidance on suitable application of nut grades.  
1.2 The requirements for any grade of nut may, at the supplier's option, and with notice to the purchaser, be fulfilled by furnishing nuts of one of the stronger grades specified herein unless such substitution is barred in the inquiry and purchase order.  
1.3 Grades C3 and DH3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to that of the steels covered in Specifications A 242/A 242M, A 588/A 588M, and A 709/A 709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition (see 5.2). When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications.
Note 2—A complete metric companion to Specification A 563 has been developed—A 563M; therefore, no metric equivalents are presented in this specification.  
1.4 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.

General Information

• Status: Historical
• Publication Date: 30-Nov-2007
• ICS: 21.060.20 - Nuts
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM A563-07 - Standard Specification for Carbons and Alloy Steel Nuts
• Effective Date: 01-Dec-2007
• Replaced By: ASTM A563-07a(2014) - Standard Specification for Carbon and Alloy Steel Nuts
• Effective Date: 01-Apr-2014
• Referred By: ASTM A354-17e2 - Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
• Effective Date: 01-Dec-2007
• Referred By: ASTM F436/F436M-19 - Standard Specification for Hardened Steel Washers Inch and Metric Dimensions
• Effective Date: 01-Dec-2007
• Referred By: ASTM B864/B864M-19 - Standard Specification for Corrugated Aluminum Box Culverts
• Effective Date: 01-Dec-2007
• Referred By: ASTM A449-14(2020) - Standard Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use
• Effective Date: 01-Dec-2007
• Referred By: ASTM F1510-21 - Standard Specification for Rotary Positive Displacement Pumps, Ships Use
• Effective Date: 01-Dec-2007
• Referred By: ASTM B746/B746M-22 - Standard Specification for Corrugated Aluminum Alloy Structural Plate for Field-Bolted Pipe, Pipe-Arches, and Arches
• Effective Date: 01-Dec-2007
• Referred By: ASTM F3459-21 - Standard Specification for Rigid Poly Vinyl Chloride (PVC) Exterior Profiles Used for Sound Walls
• Effective Date: 01-Dec-2007
• Referred By: ASTM F2437/F2437M-17 - Standard Specification for Carbon and Alloy Steel Compressible-Washer-Type Direct Tension Indicators for Use with Cap Screws, Bolts, Anchors, and Studs
• Effective Date: 01-Dec-2007
• Referred By: ASTM F1476-07(2019) - Standard Specification for Performance of Gasketed Mechanical Couplings for Use in Piping Applications
• Effective Date: 01-Dec-2007
• Referred By: ASTM B745/B745M-15(2021) - Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
• Effective Date: 01-Dec-2007
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 01-Dec-2007
• Referred By: ASTM F1018-22 - Standard Specification for Steel Emergency Gear Stowage Locker
• Effective Date: 01-Dec-2007
• Referred By: ASTM F3394/F3394M-20 - Standard Specification for Hardened Steel Backup and Reaction Washers Inch and Metric Dimensions<rangeref></rangeref >
• Effective Date: 01-Dec-2007

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A563 −07a
StandardSpecification for
1
Carbon and Alloy Steel Nuts
This standard is issued under the fixed designation A563; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* for Bolts for High Pressure or High Temperature Service,
2 or Both
1.1 This specification covers chemical and mechanical
A242/A242M Specification for High-Strength Low-Alloy
requirements for eight grades of carbon and alloy steel nuts for
Structural Steel
general structural and mechanical uses on bolts, studs, and
A307 Specification for Carbon Steel Bolts, Studs, and
other externally threaded parts.
Threaded Rod 60 000 PSI Tensile Strength
NOTE 1—See Appendix X1 for guidance on suitable application of nut
A325 Specification for Structural Bolts, Steel, Heat Treated,
grades.
120/105 ksi Minimum Tensile Strength
1.2 The requirements for any grade of nut may, at the
A354 Specification for Quenched and TemperedAlloy Steel
supplier’s option, and with notice to the purchaser, be fulfilled
Bolts, Studs, and Other Externally Threaded Fasteners
by furnishing nuts of one of the stronger grades specified
A394 Specification for Steel Transmission Tower Bolts,
herein unless such substitution is barred in the inquiry and
Zinc-Coated and Bare
purchase order.
A449 Specification for Hex Cap Screws, Bolts and Studs,
Steel, Heat Treated, 120/105/90 ksi Minimum Tensile
1.3 Grades C3 and DH3 nuts have atmospheric corrosion
Strength, General Use
resistance and weathering characteristics comparable to that of
A490 Specification for Structural Bolts, Alloy Steel, Heat
the steels covered in Specifications A242/A242M, A588/
Treated, 150 ksi Minimum Tensile Strength
A588M, and A709/A709M. The atmospheric corrosion resis-
A588/A588M Specification for High-Strength Low-Alloy
tance of these steels is substantially better than that of carbon
Structural Steel, up to 50 ksi [345 MPa] Minimum Yield
steel with or without copper addition (see 5.2). When properly
Point, with Atmospheric Corrosion Resistance
exposed to the atmosphere, these steels can be used bare
A687 Specification for High-Strength Nonheaded Steel
(uncoated) for many applications.
4
Belts and Studs
NOTE 2—Acomplete metric companion to Specification A563 has been
A709/A709M Specification for Structural Steel for Bridges
developed—A563M; therefore, no metric equivalents are presented in this
A751 Test Methods, Practices, and Terminology for Chemi-
specification.
cal Analysis of Steel Products
1.4 Terms used in this specification are defined in Termi-
B695 Specification for Coatings of Zinc Mechanically De-
nology F1789 unless otherwise defined herein.
posited on Iron and Steel
D3951 Practice for Commercial Packaging
2. Referenced Documents
F606 Test Methods for Determining the Mechanical Proper-
3
2.1 ASTM Standards: ties of Externally and Internally Threaded Fasteners,
Washers, Direct Tension Indicators, and Rivets
A194/A194M Specification for Carbon andAlloy Steel Nuts
F812/F812M Specification for Surface Discontinuities of
Nuts, Inch and Metric Series
F1789 Terminology for F16 Mechanical Fasteners
1
This specification is under the jurisdiction of ASTM Committee F16 on
F2329 Specification for Zinc Coating, Hot-Dip, Require-
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
Nuts, Rivets and Washers.
ments for Application to Carbon and Alloy Steel Bolts,
Current edition approved Dec. 1, 2007. Published January 2008. Originally
Screws, Washers, Nuts, and Special Threaded Fasteners
approved in 1966. Last previous edition approved in 2007 as A563 – 07. DOI:
G101 Guide for Estimating the Atmospheric Corrosion Re-
10.1520/A0563-07A.
2
sistance of Low-Alloy Steels
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA – 563 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Withdrawn. The last approved version of this historical standard is referenced
the ASTM website. on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A563−07a
2.2 ANSI Standards: 4.7.3 When mechanically deposited is specified, the fasten-
5
ANSI B1.1 Unified Screw Threads ers shall be zinc c
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A 563–07 Designation: A563 – 07a
Standard Specification for
1
CarbonsCarbon and Alloy Steel Nuts
This standard is issued under the fixed designation A563; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
2
1.1 This specification covers chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general
structural and mechanical uses on bolts, studs, and other externally threaded parts.
NOTE 1—See Appendix X1 for guidance on suitable application of nut grades.
1.2 The requirements for any grade of nut may, at the supplier’s option, and with notice to the purchaser, be fulfilled by
furnishing nuts of one of the stronger grades specified herein unless such substitution is barred in the inquiry and purchase order.
1.3 Grades C3 and DH3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to that of the
steels covered in Specifications A 242A242/A242M/A 242M, A 588/A 588M, A588/A588M, and A 709/A 709M, and
A709/A709M. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without
copper addition (see 5.2). When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many
applications.
NOTE 2—A complete metric companion to Specification A563 has been developed—A563M; therefore, no metric equivalents are presented in this
specification.
1.4 Terms used in this specification are defined in Terminology F 1789F1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A194/A194M Specification for Carbon andAlloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both
A242/A242M Specification for High-Strength Low-Alloy Structural Steel
A307 Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A394 Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
A449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength,
General Use
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
A588/A588M Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] MinimumYield Point, with
Atmospheric Corrosion Resistance
4
A687 Specification for High-Strength Nonheaded Steel Bolts and Studs
A709/A709M Specification for Structural Steel for Bridges
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D3951 Practice for Commercial Packaging
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Aug.Dec. 1, 2007. Published August 2007.January 2008. Originally approved in 1966. Last previous edition approved in 20042007 as A
563–04a.A563 – 07. DOI: 10.1520/A0563-07A.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA – 563 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Withdrawn.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A563 – 07a
F812/F812M Specification for Surface Discontinuities of Nuts, Inch and Metric Series
F1789 Terminology for F16 Mechanical Fasteners
F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws,
Washers,
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: A563–07 Designation: A 563 – 07a
Standard Specification for
1
Carbons and Alloy Steel Nuts
This standard is issued under the fixed designation A 563; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
2
1.1 This specification covers chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general
structural and mechanical uses on bolts, studs, and other externally threaded parts.
NOTE 1—See Appendix X1 for guidance on suitable application of nut grades.
1.2 The requirements for any grade of nut may, at the supplier’s option, and with notice to the purchaser, be fulfilled by
furnishing nuts of one of the stronger grades specified herein unless such substitution is barred in the inquiry and purchase order.
1.3 Grades C3 and DH3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to that of the
steels covered in SpecificationsA 242/A 242M,A588/A 588M, andA709/A 709M.The atmospheric corrosion resistance of these
steels is substantially better than that of carbon steel with or without copper addition (see 5.2). When properly exposed to the
atmosphere, these steels can be used bare (uncoated) for many applications.
NOTE 2—A complete metric companion to Specification A 563 has been developed—A 563M; therefore, no metric equivalents are presented in this
specification.
1.4 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.
2. Referenced Documents
3
2.1 ASTM Standards:
A 194/A 194M SpecificationforCarbonandAlloySteelNutsforBoltsforHighPressureorHighTemperatureService,orBoth
A 242/A 242M Specification for High-Strength Low-Alloy Structural Steel
A 307 Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength
A 325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength
A 354 Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
A 394 Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
A 449 Specification for Hex Cap Screws, Bolts and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength,
General Use
A 490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength
A 588/A 588M Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] MinimumYield Point, with
Atmospheric Corrosion Resistance
4
A 687 Specification for High-Strength Nonheaded Steel Bolts and Studs
A 709/A 709M Specification for Structural Steel for Bridges
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B 695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
D 3951 Practice for Commercial Packaging
F 606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets
F 812/F 812M Specification for Surface Discontinuities of Nuts, Inch and Metric Series
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets
and Washers.
Current edition approved Aug.Dec. 1, 2007. Published August 2007.January 2008. Originally approved in 1966. Last previous edition approved in 20042007 as
A563–04a.A 563 – 07.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA – 563 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Withdrawn.
*ASummary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 563 – 07a
F 1789 Terminology for F16 Mechanical Fasteners
F 2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws,
Washers, Nuts, and Special Threaded Fasteners
G 101 Guide for
...