ASTM F835-13

Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws

ABSTRACT
This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws. The screws shall be fabricated from alloy steel made to fine grain practice. The chemical composition of the screw material shall conform to the heat analysis specified. Hardness, tensile strength, yield strength, elongation, and area reduction shall be tested to meet the requirements prescribed.
SCOPE
1.1 This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) 0.060 through 0.625 thread sizes and flat countersunk (SFHCS) 0.060 through 1.5 thread sizes head cap screws having material properties for high-strength requirements.  
1.2 Fasteners meeting this specification are intended for shear-type applications and have tensile requirements ranging from 122 to 150 ksi.  
1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 The 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Oct-2013
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM F835-12 - Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws
• Effective Date: 01-Nov-2013
• Replaced By: ASTM F835-16 - Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws
• Effective Date: 01-Dec-2016

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F835 −13
Standard Specification for
Alloy Steel Socket Button and Flat Countersunk Head Cap
1
Screws
ThisstandardisissuedunderthefixeddesignationF835;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
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* F606Test Methods for Determining the Mechanical Proper-
ties of Externally and Internally Threaded Fasteners,
1.1 This specification covers the requirements for quenched
Washers, Direct Tension Indicators, and Rivets
and tempered alloy steel hexagon socket button (SBHCS)
F788/F788MSpecification for Surface Discontinuities of
0.060through0.625threadsizesandflatcountersunk(SFHCS)
Bolts, Screws, and Studs, Inch and Metric Series
0.060through1.5threadsizesheadcapscrewshavingmaterial
3
2.2 ASME Standards:
properties for high-strength requirements.
B18.3Socket Cap, Shoulder and Set Screws—Inch Series
1.2 Fasteners meeting this specification are intended for
B18.24Part Identifying Number (PIN) Code System Stan-
shear-type applications and have tensile requirements ranging
dard for B18 Fastener Products
from 122 to 150 ksi.
1.3 Thevaluesstatedininch-poundunitsaretoberegarded 3. Ordering Information
asstandard.Nootherunitsofmeasurementareincludedinthis
3.1 Ordersformaterialunderthisspecificationshallinclude
standard.
the following:
1.4 The hazard statement applies only to the test method 3.1.1 Quantity (number of screws).
section, Section 11, of this specification. This standard does
3.1.2 Dimensions, including nominal thread designation,
not purport to address all of the safety concerns, if any, thread pitch, and nominal screw length (inches). A standard
associatedwithitsuse.Itistheresponsibilityoftheuserofthis
part number may be used for this definition.
standard to establish appropriate safety and health practices 3.1.3 Name of the screw: SBHCS or SFHCS.
and determine the applicability of regulatory limitations prior
3.1.4 Coating, if required. If a protective finish other than
to use.
black oxide is required, it must be specified on the order or
product standard.
2. Referenced Documents
3.1.5 Lot testing, if required (see 10.3).
2
2.1 ASTM Standards: 3.1.6 Certification, if required (see 14.1).
A751Test Methods, Practices, and Terminology for Chemi-
3.1.7 ASTM designation and year of issue.
cal Analysis of Steel Products 3.1.8 Any special requirements.
D3951Practice for Commercial Packaging
3.1.9 For establishment of a part identifying system, see
E3Guide for Preparation of Metallographic Specimens ASME B18.24.
E18Test Methods for Rockwell Hardness of Metallic Ma-
3.2 Example—1000 pieces 0.250 − 20 × 0.375 SBHCS lot
terials
tensile test. ASTM F835–XX.
E112Test Methods for Determining Average Grain Size
E384Test Method for Knoop and Vickers Hardness of
4. Materials and Manufacture
Materials
4.1 The screws shall be fabricated from alloy steel made to
fine grain practice. In the event of controversy over grain size,
1
This specification is under the jurisdiction of ASTM Committee F16 on
referee tests on finished screws conducted in accordance with
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
Test Methods E112 shall prevail.
Nuts, Rivets and Washers.
Current edition approved Nov. 1, 2013. Published January 2014. Originally
4.2 Screws shall be hot or cold upset or extruded, or both.
approved in 1986. Last previous edition approved in 2012 as F835–12. DOI:
10.1520/F0835-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from American Society of Mechanical Engineers (ASME), ASME
Standards volume information, refer to the standard’s Document Summary page on International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
the ASTM website. www.asme.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 ----------------------
F835−13
TABLE 2 Chemical Requirements
4.3 Unless otherwise specified, threads shall be rolled for
diametersthrough0.625in.andforscrewlengthsthrough4in. Composition, %
Element
For diameters and lengths other than this, threads may be Heat Product
Analysis Analysis
rolled, cut or ground.
4.4 Screws shall be heat treated by quenching in oil from
Carbon 0.30 to 0.48 0.28 to 0.50
Phosphorus, max 0.035 0.040
above the transformation temperature and then tempering by
Sulfur, max 0.040 0.045
reheating to at least 650°F
...

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: F835 − 12 F835 − 13
Standard Specification for
Alloy Steel Socket Button and Flat Countersunk Head Cap
1
Screws
This standard is issued under the fixed designation F835; 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*
1.1 This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) 0.060
through 0.625 thread sizes and flat countersunk (SFHCS) 0.060 through 1.5 thread sizes head cap screws having material properties
for high-strength requirements.
1.2 Fasteners meeting this specification are intended for shear-type applications and have tensile requirements ranging from 122
to 150 ksi.
1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
standard.
1.4 The 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
D3951 Practice for Commercial Packaging
E3 Guide for Preparation of Metallographic Specimens
E18 Test Methods for Rockwell Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size
E384 Test Method for Knoop and Vickers Hardness of Materials
F606MF606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets (Metric)
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
3
2.2 ASME Standards:
B18.3 Socket Cap, Shoulder and Set Screws—Inch Series
B18.24 Part Identifying Number (PIN) Code System Standard for B18 Fastener Products
3. Ordering Information
3.1 Orders for material under this specification shall include the following:
3.1.1 Quantity (number of screws).
3.1.2 Dimensions, including nominal thread designation, thread pitch, and nominal screw length (inches). A standard part
number may be used for this definition.
3.1.3 Name of the screw: SBHCS or SFHCS.
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 May 1, 2012Nov. 1, 2013. Published June 2012January 2014. Originally approved in 1986. Last previous edition approved in 20042012 as
ε1
F835 – 04F835 – 12. . DOI: 10.1520/F0835-12.10.1520/F0835-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.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 ----------------------
F835 − 13
3.1.4 Coating, if required. If a protective finish other than black oxide is required, it must be specified on the order or product
standard.
3.1.5 Lot testing, if required (see 10.3).
3.1.6 Certification, if required (see 14.1).
3.1.7 ASTM designation and year of issue.
3.1.8 Any special requirements.
3.1.9 For establishment of a part identifying system, see ASME B18.24.
3.2 Example—1000 pieces 0.250 − 20 × 0.375 SBHCS lot tensile test. ASTM F835–XX.
4. Materials and Manufacture
4.1 The screws shall be fabricated from alloy steel made to fine grain practice. In the event of controversy over grain size,
referee tests on finished screws conducted in accordance with Test Methods E112 shall prevail.
4.2 Screws shall be hot or cold upset or extruded, or both.
4.3 Unless otherwise specified, threads shall
...