ASTM F912-11

Standard Specification for Alloy Steel Socket Set Screws

ABSTRACT
This specification covers the requirements for quenched and tempered alloy steel socket-set screws (SSS). The screws shall be fabricated from alloy steel made to fine grain practice. The screws may be forged, formed, extruded, machined, or ground to meet the dimensional characteristics and performance requirements. The chemical composition of the screw material shall conform to the heat analysis specified. When protective or decorative coatings are applied to the screws, precautions specified by the coating requirements to minimize embrittlement shall be exercised. Chemical analysis, socket strength torque test, hardness test, and decarburization and carburization tests shall be performed to conform to the requirements specified.
SCOPE
1.1 This specification covers the requirements for quenched and tempered alloy steel socket-set screws (SSS) 0.060 through 2.000-in. sizes having hardnesses 45 to 53 HRC.
1.2 These set screws are intended for compression applications only and are not customarily subjected to embrittlement tests. For tensile applications, consult with the manufacturer for proper alloy and hardness.
1.3 The hazard statement pertains 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.
Note 1—A complete metric companion to Specification F 912 has been developed—F 912M; therefore, no metric equivalents are shown in this Specification.

General Information

• Status: Historical
• Publication Date: 31-Oct-2011
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM F912-04e1 - Standard Specification for Alloy Steel Socket Set Screws
• Effective Date: 01-Nov-2011
• Replaced By: ASTM F912-11(2017) - Standard Specification for Alloy Steel Socket Set Screws
• Effective Date: 01-Jun-2017
• Referred By: ASTM F1510-21 - Standard Specification for Rotary Positive Displacement Pumps, Ships Use
• Effective Date: 01-Nov-2011
• Referred By: ASTM F1718-01(2019) - Standard Specification for Rotary Positive Displacement Distillate Fuel Pumps
• Effective Date: 01-Nov-2011
• Referred By: ASTM F2798-09(2023) - Standard Specification for Sealless Lube Oil Pump with Oil Through Motor for Marine Applications
• Effective Date: 01-Nov-2011

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:F912 −11
Standard Specification for
1
Alloy Steel Socket Set Screws
ThisstandardisissuedunderthefixeddesignationF912;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.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* Washers, Direct Tension Indicators, and Rivets
F788/F788M Specification for Surface Discontinuities of
1.1 This specification covers the requirements for quenched
Bolts, Screws, and Studs, Inch and Metric Series
and tempered alloy steel socket-set screws (SSS) in nominal
F1470 Practice for Fastener Sampling for Specified Me-
diameters0.060through2in.havinghardnesses45to53HRC.
chanical Properties and Performance Inspection
1.2 These set screws are intended for compression applica-
F2328 Test Method for Determining Decarburization and
tions only and are not customarily subjected to embrittlement
Carburization in Hardened and Tempered Threaded Steel
tests. For tensile applications, consult with the manufacturer
Bolts, Screws and Studs
for proper alloy and hardness. 3
2.2 ASME Standards:
4
B18.3 Socket Cap, Shoulder and Set Screw, Inch Series
1.3 The values stated in inch-pound units are to be regarded
as standard. No other units of measurement are included in this B18.24 Part Identifying Number (PIN) Code System Stan-
dard for B18 Fastener Products
standard.
NOTE 1—Acomplete metric companion to Specification F912 has been
3. Ordering Information
developed—F912M; therefore, no metric equivalents are shown in this
Specification. 3.1 Orders for material under this specification shall include
the following information:
1.4 The hazard statement pertains only to the test method
3.1.1 Quantity (number of screws).
section, Section 11 of this specification.This standard does not
3.1.2 Dimensions, including nominal thread designation,
purport to address all of the safety concerns, if any, associated
threads per inch, nominal screw length (inches) and point
with its use. It is the responsibility of the user of this standard
configuration. A standard part number may be used for this
to establish appropriate safety and health practices and
definition.
determine the applicability of regulatory limitations prior to
3.1.3 Name of the screw (SSS).
use.
3.1.4 Coating, if required. See 4.4.
2. Referenced Documents 3.1.5 Certification, if required. See 14.1.
2 3.1.6 ASTM designation and year of issue.
2.1 ASTM Standards:
3.1.7 Any special or supplemental requirements.
A751 Test Methods, Practices, and Terminology for Chemi-
3.1.8 For establishment of a part identifying system, see
cal Analysis of Steel Products
ASME B18.24.
E3 Guide for Preparation of Metallographic Specimens
E112 Test Methods for Determining Average Grain Size
4. Materials and Manufacture
E384 Test Method for Knoop and Vickers Hardness of
4.1 The screws shall be fabricated from alloy steel made to
Materials
fine grain practice. In the event of controversy over grain size,
F606 Test Methods for Determining the Mechanical Proper-
referee tests on finished screws conducted in accordance with
ties of Externally and Internally Threaded Fasteners,
Test Methods E112 shall prevail.
4.2 The screws may be forged, formed, extruded, machined,
1
This specification is under the jurisdiction of ASTM Committee F16 on
or ground to meet the dimensional characteristics and perfor-
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
Nuts, Rivets and Washers. mance requirements.
Current edition approved Nov. 1, 2011. Published November 2011. Originally
ε1
approved in 1986. Last previous edition approved in 2004 as F912 – 04 . DOI:
3
10.1520/F0912-11. Available from American Society of Mechanical Engineers (ASME), ASME
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM www.asme.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.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 ----------------------
F912−11
4.3 Setscrewsshallbeheattreatedbyquenchinginoilfrom 7.1.1 There shall be no evidence of gross decarburization of
above the transformation temperature and then tempered by the surfaces
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:F912–04 Designation: F912 – 11
Standard Specification for
1
Alloy Steel Socket Set Screws
ThisstandardisissuedunderthefixeddesignationF912;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
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
´ NOTE—Sections 2.2 and 3.1.9 were editorially revised in October 2006.
1. Scope*
1.1 This specification covers the requirements for quenched and tempered alloy steel socket-set screws (SSS) in nominal
diameters 0.060 through 2.000-in. sizes2 in. having hardnesses 45 to 53 HRC.
1.2 These set screws are intended for compression applications only and are not customarily subjected to embrittlement tests.
For tensile applications, consult with the manufacturer for proper alloy and hardness.
1.3
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.
NOTE 1—A complete metric companion to Specification F912 has been developed—F912M; therefore, no metric equivalents are shown in this
Specification.
1.4 The hazard statement pertains 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.
NOTE1—A complete metric companion to Specification F912 has been developed—F912M; therefore, no metric equivalents are shown in this
Specification.
2. Referenced Documents
2
2.1 ASTM Standards:
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products D3951Practice for Commercial
Packaging
E3
E3 Guide for Preparation of Metallographic Specimens E18Test Methods for Rockwell Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size E384
E384 Test Method for Knoop and Vickers Hardness of Materials
F606 TestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,Direct
Tension Indicators, and Rivets
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
2.2 Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F2328 Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts,
Screws and Studs
3
2.2 ASME Standards:
1
This specification is under the jurisdiction ofASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Nuts, Rivets,
and Washers.
Current edition approved Aug. 1, 2004. Published August 2004. Originally approved in 1986. Last previous edition approved in 2000 as F912–00. DOI:
10.1520/F0912-04E01.on Steel Bolts, Nuts, Rivets and Washers.
´1
Current edition approved Nov. 1, 2011. Published November 2011. Originally approved in 1986. Last previous edition approved in 2004 as F912 – 04 . DOI:
10.1520/F0912-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
F912 – 11
4
B18.3 Socket Cap, Shoulder and Set Screw, 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 information:
3.1.1 Quantity (number of screws).
3.1.2 Dimensions, including nominal thread designation, threads per inch, nominal screw length (inches) and point
configuration. A standard part number may be used for this definition.
3.1.3 Name of the screw (SSS).
3.1.4
...