ASTM F912M-04e1

Standard Specification for Alloy Steel Socket Set Screws [Metric]

ABSTRACT
This specification covers the requirements and corresponding test methods for quenched and tempered alloy steel socket set screws (SSS) having sizes of M1.6 through M24, hardnesses of 45 to 53 HRC, and belonging to ISO 898/5 property class 45H. These set screws are intended for compression applications only and are not customarily subjected to embrittlement tests. The screws shall be fabricated to a fine grain practice in standard surface finishes, and optional protective coating as specified in the purchase order. Sampled specimens shall undergo heat and product analysis for measurements of the chemical content for carbon, phosphorus, and sulfur. Appropriate tests shall also be performed to analyze the conformance of the screws to mechanical and other property requirements such as torque and torsional strength, microhardness, decarburization, and surface discontinuities.
SCOPE
1.1 This specification covers the requirements for quenched and tempered alloy steel socket set screws (SSS) M1.6 through M24 sizes having hardnesses 45 to 53 HRC, ISO 898/5 property class 45H.
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—This specification is the metric companion of Specification F 912.

General Information

• Status: Historical
• Publication Date: 31-Jul-2004
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaces: ASTM F912M-04 - Standard Specification for Alloy Steel Socket Set Screws [Metric]
• Effective Date: 01-Aug-2004
• Replaced By: ASTM F912M-11 - Standard Specification for Alloy Steel Socket Set Screws (Metric) (Withdrawn 2015)
• Effective Date: 01-Nov-2011
• Referred By: ASTM F2328M-17(2022) - Standard Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts, Screws, Studs, and Nuts (Metric)
• Effective Date: 01-Aug-2004

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
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Designation: F912M – 04
Standard Specification for
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Alloy Steel Socket Set Screws (Metric)
This standard is issued under the fixed designation F912M; 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.
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´ NOTE—Sections 2.2 and 3.1.9 were editorially revised in October 2006.
1. Scope* E384 Test Method for Microindentation Hardness of Mate-
rials
1.1 This specification covers the requirements for quenched
F788/F788M Specification for Surface Discontinuities of
and tempered alloy steel socket set screws (SSS) M1.6 through
Bolts, Screws, and Studs, Inch and Metric Series
M24 sizes having hardnesses 45 to 53 HRC, ISO 898/5
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2.2 ASME Standards:
property class 45H.
B18.3.6M Hexagon Socket Set Screws Metric Series
1.2 These set screws are intended for compression applica-
B18.24 Part Identifying Number (PIN) Code System Stan-
tions only and are not customarily subjected to embrittlement
dard for B18 Fastener Products
tests. For tensile applications, consult with the manufacturer
2.3 ISO Standard:
for proper alloy and hardness.
898/5 Mechanical Properties of Fasteners—Set Screws and
1.3 The hazard statement pertains only to the test method
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Similar Threaded Fasteners Not Under Tensile Stress
section, Section 11 of this specification. This standard does not
purport to address all of the safety concerns, if any, associated
3. Ordering Information
with its use. It is the responsibility of the user of this standard
3.1 Orders for material under this specification shall include
to establish appropriate safety and health practices and
the following information:
determine the applicability of regulatory limitations prior to
3.1.1 Quantity (number of screws).
use.
3.1.2 Dimensions, including nominal thread designation,
NOTE 1—This specification is the metric companion of Specification
thread pitch, nominal screw length (millimetres) and point
F912.
configuration. A standard part number may be used for this
definition.
2. Referenced Documents
3.1.3 Name of the screw (SSS).
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2.1 ASTM Standards:
3.1.4 Coating, if required. See 4.4.
A751 Test Methods, Practices, andTerminology for Chemi-
3.1.5 Lot testing, if required. See 10.3.
cal Analysis of Steel Products
3.1.6 Certification, if required. See 14.1.
D3951 Practice for Commercial Packaging
3.1.7 ASTM designation and year of issue.
E3 Guide for Preparation of Metallographic Specimens
3.1.8 Any special or supplemental requirements.
E18 Test Methods for Rockwell Hardness of Metallic Ma-
3.1.9 For establishment of a part identifying system, see
terials
ASME B18.24.
E112 Test Methods for Determining Average Grain Size
3.2 Example—50 000 pieces M6x1x8 cone point SSS—
certification per 14.1—ASTM F912M–_ _(state issue date), or
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This specification is under the jurisdiction of ASTM Committee F16 on 25000 pcs B1836A 060008K SSS—certification per 14.1—
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
ASTM F912M– _ _(state issue date).
Nuts, Rivets and Washers.
Current edition approved Aug. 1, 2004. Published August 2004. Originally
approved in 1985. Last previous edition approved in 2000 as F912M – 00. DOI:
10.1520/F0912M-04E01.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from American Society of Mechanical Engineers (ASME), ASME
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM International Headquarters, Three Park Ave., New York, NY 10016-5990.
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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.
*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.
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F912M – 04
TABLE 2 Torsional Strength Requirements
4. Material and Manufacture
4.1 The screws shall be fabricated from alloy steel made to
Nominal Shortest Nominal Screw Test
a fine grain practice. In the event of controversy over grain
Screw Lengths Subject to Torque Torque
Size Testing for N-m,
size, referee tests on finished screws conducted in accordance
min
with Test Methods E112 shall prevail. Cup and Cone and Half
Flat Oval Dog
4.2 The screw may be forged, formed, extruded, machined,
Points Points Points
or ground to meet the dimensional characteristics and perfor-
1.6 3 3 3 0.1
mance requirements.
24 4 4 0.2
4.3 S
...