ASTM F835M-00

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

SCOPE
1.1 This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws M3 through M20 thread sizes having material properties of ISO 898/1 Property Class 12.9.  
1.2 Fasteners meeting this specification are intended for shear type applications and have tensile requirements equivalent to ISO 898/1 Property Class 10.9.
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 problems, 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: 09-May-2000
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.02 - Steel Bolts, Studs and Nuts

Relations

• Replaced By: ASTM F835M-03 - Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws [Metric]
• Effective Date: 10-May-2003
• 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: 10-May-2000

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 835M – 00
METRIC
Standard Specification for
Alloy Steel Socket Button and Flat Countersunk Head Cap
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Screws [Metric]
This standard is issued under the fixed designation F 835M; 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.
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1. Scope * B18.3.4M Hexagon Socket Button Head Cap Screws
B18.3.5M Hexagon Socket Flat Countersunk Head Cap
1.1 This specification covers the requirements for quenched
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Screws
and tempered alloy steel hexagon socket button (SBHCS) and
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B18.24.1 Part Identifying Number (PIN) Code System
flat countersunk (SFHCS) head cap screws M3 through M20
2.3 ISO Standard:
thread sizes having material properties of ISO 898/1 Property
898/1 Mechanical Properties of Fasteners, Bolts, Screws
Class 12.9.
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and Studs
1.2 Fasteners meeting this specification are intended for
shear type applications and have tensile requirements equiva-
3. Ordering Information
lent to ISO 898/1 Property Class 10.9.
3.1 Orders for material under this specification shall in-
1.3 The hazard statement pertains only to the test method
clude:
section, Section 11 of this specification. This standard does not
3.1.1 Quantity (number of screws).
purport to address all of the safety problems, if any, associated
3.1.2 Dimensions, including nominal thread designation,
with its use. It is the responsibility of the user of this standard
thread pitch and nominal screw length (millimetres). A stan-
to establish appropriate safety and health practices and
dard part number may be used for this definition.
determine the applicability of regulatory limitations prior to
3.1.3 Name of the screw: SBHCS or SFHCS.
use.
3.1.4 Coating, if required. If a protective finish other than
2. Referenced Documents black oxide is required, it must be specified on the order or
product standard.
2.1 ASTM Standards:
3.1.5 Lot testing, if required (see 10.3).
A 751 Test Methods, Practices, and Terminology for
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3.1.6 Certification, if required (see 14.1).
Chemical Analysis of Steel Products
3
3.1.7 ASTM designation and year of issue, and
D 3951 Practice for Commercial Packaging
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3.1.8 Any special requirements.
E 3 Methods of Preparation of Metallographic Specimens
3.1.9 For establishment of a part identifying system, see
E 18 Test Methods for Rockwell Hardness and Rockwell
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ASME B18.24.1.
Superficial Hardness of Metallic Materials
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3.2 Example—1000 pieces M6 3 1 3 25 SBHCS lot tensile
E 112 Test Methods for Determining Average Grain Size
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test, ASTM F 835M – XX.
E 384 Test Method for Microhardness of Materials
F 606M Test Methods for Determining the Mechanical
4. Materials and Manufacture
Properties of Externally and Internally Threaded Fasteners,
5 4.1 The screws shall be fabricated from alloy steel made to
Washers, and Rivets [Metric]
fine grain practice. In the event of controversy over grain size,
F 788/F 788M Specification for Surface Discontinuities of
5 referee tests on finished screws conducted in accordance with
Bolts, Screws, and Studs, Inch and Metric Series
Test Methods E 112 shall prevail.
2.2 ANSI/ASME Standards:
4.2 Screws shall be cold upset or extruded, or both.
4.3 Screws shall be roll threaded.
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This specification is under the jurisdiction of ASTM Committee F16 on 4.4 Screws shall be heat treated by quenching in oil from
Fasteners and is the direct responsibility of Subcommittee F 16.02 on Steel Bolts,
above the transformation temperature and then tempering by
Nuts, Rivets, and Washers.
Current edition approved May 10, 2000. Published July 2000. Originally
published as F 835M – 83. Last previous edition F 835M – 98.
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Annual Book of ASTM Standards, Vol 01.03. Available from American National Standards Institute, 11 W. 42nd St., 13th
3
Annual Book of ASTM Standards, Vol 15.09. Floor, New York, NY 10036.
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Annual Book of ASTM Standards, Vol 03.01. Available from Americal Society of Mechanical Engineers, Three Park Avenue,
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Annual Book of ASTM Standards, Vol 01.08. New York, NY 10016–5990.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 835M
A
TABLE 2 Chemical Requirements
reheating to at least 380°C to be within the hardness range
specified in Table 1.
Composition, %
4.4.1 The minimum tempering temperature m
...