ASTM A574M-00

Standard Specification for Alloy Steel Socket-Head Cap Screws [Metric]

SCOPE
1.1 This specification covers the requirements for quenched and tempered alloy steel socket-head cap screws  
1.6 mm through 48 mm in diameter having a minimum ultimate tensile strength of 1220 MPa.

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 A574M-04 - Standard Specification for Alloy Steel Socket-Head Cap Screws [Metric]
• Effective Date: 01-Aug-2004
• 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 574M – 00
METRIC
Standard Specification for
1
Alloy Steel Socket-Head Cap Screws [Metric]
This standard is issued under the fixed designation A 574M; 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.
1. Scope* 2.2 ANSI/ASME Standards:
6
B18.3.1M Metric Socket Head Cap Screws
1.1 This specification covers the requirements for quenched
7
B18.24.1 Part Identifying Number (PIN) Code System
and tempered alloy steel socket-head cap screws 1.6 mm
through 48 mm in diameter having a minimum ultimate tensile
3. Ordering Information
strength of 1220 MPa.
3.1 Orders for socket head cap screws under this specifica-
NOTE 1—This specification is the metric companion of Specification
tion shall include the following information:
A 574.
3.1.1 Quantity (number of screws),
1.2 The following hazard caveat pertains only to the test
3.1.2 Dimensions, including nominal thread designation,
method portion, Section 10, of this specification: This standard
thread, pitch, and nominal screw length (millimetres),
does not purport to address all of the safety concerns, if any,
3.1.3 Name of the screw (SHCS),
associated with its use. It is the responsibility of the user of this
3.1.4 ASTM designation and year of issue.
standard to establish appropriate safety and health practices
3.2 Orders for socket head cap screws may include the
and determine the applicability of regulatory limitations prior
following optional requirements:
to use.
3.2.1 Inspection at point of manufacture.
3.2.2 Coating, if required (see 4.6).
2. Referenced Documents
3.2.3 Certified Test Reports (see 9.2).
2.1 ASTM Standards:
3.2.4 Additional Testing (see 9.3 and 11.1).
A 751 Test Methods, Practices, and Terminology for
3.2.5 Special Packaging (see 14.1.2).
2
Chemical Analysis of Steel Products
3.2.6 Supplementary Requirement (see S1).
3
D 3951 Practice for Commercial Packaging
3.2.7 Special Requirements.
4
E 3 Methods of Preparation of Metallographic Specimens
3.2.8 For establishment of a part identifying system, see
E 18 Test Methods for Rockwell Hardness and Rockwell
ASME B18.24.1.
4
Superficial Hardness of Metallic Materials
4. Materials and Manufacture
E 112 Test Methods for Determining the Average Grain
4
Size
4.1 The screws shall be fabricated from steel made to fine
4
E 384 Test Method for Microhardness of Materials
grain practice. In the event of controversy over grain size,
F 606M Test Methods for Determining the Mechanical
referee tests on finished screws conducted in accordance with
Properties of Externally and Internally Threaded Fasteners,
Test Method E 112 shall prevail.
5
Washers, and Rivets [Metric]
4.2 Screws in sizes up to M20 inclusive, and with lengths up
F 788/F788M Specification for Surface Discontinuities of
to 10 times the nominal product size or 150 mm, whichever is
5
Bolts, Screws, and Studs, Inch and Metric Series
shorter, shall be cold headed, except that they may be hot
headed by agreement of the purchaser. Larger sizes and longer
lengths may be cold or hot headed. Screws M42 and larger may
1
be machined. Sockets may be forged or machined at the option
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,
of the manufacturer.
Nuts, Rivets, and Washers.
Current edition approved May 10, 2000. Published July 2000. Originally
published as A 574M–80. Last previous edition A 574M–98a.
2 6
Annual Book of ASTM Standards, Vol 01.03. Available from American National Standards Institute, 11 West 42nd Street,
3
Annual Book of ASTM Standards, Vol 15.09. 13th Floor, New York, NY 10036.
4 7
Annual Book of ASTM Standards, Vol 03.01. Available from American Society of Mechanical Engineers, Three Park
5
Annual Book of ASTM Standards, Vol 01.08. Avenue, 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.
1

---------------------- Page: 1 ----------------------
A 574M – 00
TABLE 2 Chemical Requirements
4.3 Screws in sizes up to M24 inclusive, and product lengths
up to 150 mm inclusive, shall be roll threaded, except by
Element Composition, %
special agreement of the purchaser. Larger products may be
Heat Analysis Product Analysis
rolled, cut, or ground at the option of the manufacturer.
Carbon 0.33 to 0.48 0.31 to 0.50
4.4 Socket-head cap screws shall be heat treated by quench-
Phosphorus, max 0.035 0.040
ing in oi
...