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  • ASTM
    A449-04a Standard Specification for Quenched and Tempered Steel Bolts and Studs
    Edition: 2004
    $93.60
    Unlimited Users per year

Description of ASTM-A449 2004

ASTM A449-04a

Historical Standard: ASTM A449-04a Standard Specification for Quenched and Tempered Steel Bolts and Studs

SUPERSEDED (see Active link, below)




ASTM A449

1. Scope

1.1 This specification covers the chemical and mechanical requirements for two types of quenched and tempered steel bolts and studs for general applications where high strength is required.

1.2 The two types of bolts covered in this specification are:

1.2.1 Type 1Medium-carbon steel bolts and studs furnished in nominal diameters of 1/4 to 3 in., inclusive.

1.2.2 Type 2Low-carbon martensite or medium-carbon martensite steel bolts and studs furnished in nominal diameters of 1/4to 1 in., inclusive.

1.3 The bolts and studs shall be Type 1, Type 2, or Type 1 or 2 at manufacturer's option, as specified by the purchaser. When a type is not specified, Type 1 shall be furnished. When elevated temperature applications are involved, Type 1 shall be specified by the purchaser on the order.

1.4 Suitable nuts are covered in Specification A 563. Unless otherwise specified, the grade and style of nut shall be as follows:

Nuts of other grades and styles having specified proof load stresses (Specification A 563, Table 3) greater than the specified grade and style of nut are suitable.
Fastener Size and Surface Finish Nut Grade and Style
1/4 to 11/2 in., plain (or with a coating of insufficient thickness to require over-tapped nuts) B, hex
Over 11/2 to 3 in., plain (or with a coating of insuffi-cient thickness to require over-tapped nuts) A, heavy hex
1/4 to 3 in., zinc-coated (or with a coating thicknessrequiring over-tapped nuts) DH, heavy hex

1.5 Unless otherwise specified, washers ordered with bolts shall be furnished to the requirements of Specification F 436.

1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.7 Terms used in this specification are defined in Terminology F 1789 unless otherwise defined herein.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A563 Specification for Carbon and Alloy Steel Nuts

A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products

B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

D3951 Practice for Commercial Packaging

F436 Specification for Hardened Steel Washers

F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets

F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series

F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection

F1789 Terminology for F16 Mechanical Fasteners

F2329 Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels


Keywords

bolts; carbon steel; hex cap screws; steel; studs; Bolting materials; Carbon steel bolting materials--specifications; Steel bolting materials--specifications; Studs (materials/applications)--specifications ;


ICS Code

ICS Number Code 21.060.10 (Bolts, screws, studs)


DOI: 10.1520/A0449-04A

ASTM International is a member of CrossRef.


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