ASTM F835-04

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

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 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-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 F835-03 - Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws
• Effective Date: 01-Aug-2004
• Replaced By: ASTM F835-04e1 - Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
Designation: F 835 – 04
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.Anumber 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* Washers, 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 hexagon socket button (SBHCS)
2.2 ANSI/ASME Standards:
0.060through0.625threadsizesandflatcountersunk(SFHCS)
3
B18.3 Socket Cap, Shoulder and Set Screws—Inch Series
0.060through1.5threadsizesheadcapscrewshavingmaterial
4
B18.24.1 Part Identifying Number (PIN) Code System
properties for high-strength requirements.
1.2 Fasteners meeting this specification are intended for
3. Ordering Information
shear-type applications and have tensile requirements ranging
3.1 Ordersformaterialunderthisspecificationshallinclude
from 122 to 150 ksi.
the following:
1.3 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
associated with its use. It is the responsibility of the user of this
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
2. Referenced Documents product standard.
2
3.1.5 Lot testing, if required (see 10.3).
2.1 ASTM Standards:
3.1.6 Certification, if required (see 14.1).
A 751 Test Methods, Practices, and Terminology for
3.1.7 ASTM designation and year of issue.
Chemical Analysis of Steel Products
3.1.8 Any special requirements.
D3951 Practice for Commercial Packaging
3.1.9 For establishment of a part identifying system, see
E3 Practice for Preparation of Metallographic Specimens
ASME B18.24.1.
E18 Test Methods for Rockwell Hardness and Rockwell
3.2 Example—1000 pieces 0.250 − 20 3 0.375 SBHCS lot
Superficial Hardness of Metallic Materials
tensile test. ASTM F835–XX.
E112 Test Methods for Determining Average Grain Size
E384 Test Method for Microindentation Hardness of Ma-
4. Materials and Manufacture
terials
4.1 The screws shall be fabricated from alloy steel made to
F606 Test Methods for Determining the Mechanical Prop-
fine grain practice. In the event of controversy over grain size,
erties of Externally and Internally Threaded Fasteners,
referee tests on finished screws conducted in accordance with
Test Methods E112 shall prevail.
1
This specification is under the jurisdiction of ASTM Committee F16 on 4.2 Screws shall be hot or cold upset or extruded, or both.
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 2003 as F835–03.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM 4th Floor, New York, NY 10036.
4
Standards volume information, refer to the standard’s Document Summary page on Available from American Society of Mechanical Engineers (ASME), ASME
the ASTM website. International Headquarters, Three Park Ave., New York, NY 10016-5990.
*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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F835–04
TABLE 2 Chemical Requirements
4.3 Unless otherwise specified, threads shall be rolled for
diametersthrough0.625in.andforscrewlengthsthrough4in.
Composition, %
For diameters and lengths other than this, threads may be
Element
Heat Product
rolled, cut or ground.
Analysis Analysis
4.4 Screws shall be heat treated by quenching in oil from
Carbon 0.30 to 0.48 0.28 to 0.50
above the transformation temperature and then tempering by
Phosphorus, max 0.035 0.040
reheating to at least 650°F to be within the hardness range
S
...