ASTM A490M-00

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: A 490M – 00
METRIC
Standard Specification for
High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for
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Structural Steel Joints [Metric]
This standard is issued under the fixed designation A 490M; 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 * F 436M and shall be of a surface finish for each type of bolt as
follows:
1.1 This specification covers the chemical and mechanical
Bolt Type and Finish Washer Finish
requirements of quenched and tempered steel bolts, in nominal
thread diameters M16 to M36, inch. These bolts are intended
1 and 2, plain (uncoated) plain (uncoated)
for use in structural joints that are comparable to those made
3, plain weathering steel, plain
under the Specification for Structural Joints Using ASTM A
1.4 This specification provides that heavy hex structural
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325 or A 490 Bolts issued by the Research Council on
bolts and heavy hex nuts shall be furnished unless other
Structural Connections of the Engineering Foundation. The
dimensional requirements are stipulated in the purchase inquiry
various types of bolts covered by this specification are:
and order.
1.1.1 Type 1—Bolts made of alloy steel, supplied in nomi-
NOTE 1—For quenched and tempered steel bolts, studs, and other
nal thread diameters M16 to M36, inclusive.
externally threaded fasteners with nominal thread diameters larger than
1.1.2 Type 2—Bolts made from what is generally described
M36, but with similar mechanical properties, refer to class 10.9 of
as low-carbon martensite steel, supplied in nominal thread
Specification F 568.
diameters M16 to M24 inclusive.
NOTE 2—This specification is the metric companion of Specification
1.1.3 Type 3—Bolts in nominal thread diameters M16 to
A 490.
M36 , inclusive, having atmospheric corrosion resistance and
2. Referenced Documents
weathering characteristics comparable to that of the steels
covered in Specifications A 588/A 588M, A 242/A 242M, and
2.1 ASTM Standards:
A 709/A 709M. The atmospheric corrosion resistance of these
A 242/A242M Specification for High-Strength Low-Alloy
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steels is substantially better than that of carbon steel with or
Structural Steel
without copper addition. See 6.3. When properly exposed to
A 563M Specification for Carbon and Alloy Steel Nuts
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the atmosphere, these steels can be used bare (uncoated) for
[Metric]
many applications.
A 588/A588M Specification for High-Strength Low-Alloy
1.2 Unless otherwise specified, all nuts used on these bolts
Structural Steel with 50 ksi [345 MPa] Minimum Yield
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shall conform to the requirements of Specification A 563M,
Point to 4 in. [100 mm] Thick
shall be heavy hex, and shall be of the class and surface finish
A 709/A709M Specification for Structural Steel for
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for each type of bolt as follows:
Bridges
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Bolt Type and Finish Nut Class and Finish
D 3951 Practice for Commercial Packaging
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E 138 Method for Wet Magnetic Particle Inspection
1 and 2, plain (noncoated) 10S, 1053, plain
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E 709 Guide for Magnetic Particle Examination
3, plain 10S3, plain
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F 436M Specification for Hardened Steel Washers [Metric]
1.3 Unless otherwise specified, all washers used on these
F 568 Specification for Carbon and Alloy Steel Externally
bolts shall conform to the requirements of Specification
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Threaded Metric Fasteners
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This specification is under the jurisdiction of ASTM Committee F16 on
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Fasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts, Annual Book of ASTM Standards, Vol 01.04.
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Nuts, Rivets, and Washers. Annual Book of ASTM Standards, Vols 01.01 and 01.08.
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Current edition approved May 10, 2000. Published July 2000. Originally Annual Book of ASTM Standards, Vol 15.09.
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published as A 490M – 82. Last previous edition A 490M – 93. Discontinued; see 1980 Annual Book of ASTM Standards, Part II.
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Published by the American Institute of Steel Construction, 400 N. Michigan Annual Book of ASTM Standards, Vol 03.03.
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Ave., Chicago, IL 60611. Annual Book of ASTM Standards, Vol 01.08.
*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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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.
A 490M – 00
F 606 Test Methods for Determining the Mechanical Prop- 4.1.5 ASTM designation and date of issue,
erties of Ex
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