ASTM F738M-01
(Specification)Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs
SCOPE
1.1 This specification covers the chemical and mechanical requirements for stainless steel metric bolts, screws, and studs with nominal thread diameters M1.6 through M36 and is intended for use in engineering applications requiring general corrosion resistance.
1.2 Eight groups of stainless steel alloys are covered, including three austenitic (Grades A1, A2, and A4), one ferritic (Grade F1), three martensitic (Grades C1, C3, and C4), and one precipitation hardening (Grade P1).
1.3 Twenty property classes are covered, including nine austenitic, two ferritic, eight martensitic, and one precipitation hardening. The property classes with the permissible alloys for each are listed in Table 1.
1.4 This specification is based in concept and content on ISO 3506. The chemical and mechanical requirements specified for all property classes, except as given in , are essentially identical with classes of the same designation in ISO 3506.
1.4.1 This specification includes all of the property classes covered in ISO 3506. Additionally, it includes property classes A1-70, A2-70, A4-70, A1-80, A2-80, and A4-80 for products with nominal thread diameters larger than M20; and four non-ISO property classes, C1-110, C4-110, C3-120; and P1-90.
1.5 Supplementary requirements of an optional nature are provided, applicable only when agreed upon between the manufacturer and the purchaser at the time of the inquiry and order.
1.6 Suitable nuts for use with bolts, screws, and studs included in this specification are covered by Specification F 836M.
1.7 The following safety hazards caveat pertains only to the test method described in this specification.This standard does not purport to address the safety problems 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.
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Designation: F 738M – 01
METRIC
Standard Specification for
1
Stainless Steel Metric Bolts, Screws, and Studs
This standard is issued under the fixed designation F 738M; 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 its use. It is the responsibility of the user of this standard to
establish appropriate safety and health practices and deter-
1.1 This specification covers the chemical and mechanical
mine the applicability of regulatory limitations prior to use.
requirements for stainless steel metric bolts, screws, and studs
with nominal thread diameters M1.6 through M36 and is
2. Referenced Documents
intended for use in engineering applications requiring general
2.1 ASTM Standards:
corrosion resistance.
2
A 276 Specification for Stainless Steel Bars and Shapes
1.2 Eight groups of stainless steel alloys are covered,
A 342 Test Methods for Permeability of Feebly Magnetic
including three austenitic (Grades A1, A2, and A4), one ferritic
3
Materials
(Grade F1), three martensitic (Grades C1, C3, and C4), and one
A 380 Practice for Cleaning, Descaling, and Passivation of
precipitation hardening (Grade P1).
2
Stainless Steel Parts, Equipment, and Systems
1.3 Twenty property classes are covered, including nine
A 484/A 484M Specification for General Requirements for
austenitic, two ferritic, eight martensitic, and one precipitation
2
Stainless Steel Bars, Billets, and Forgings
hardening. The property classes with the permissible alloys for
A 493 Specification for Stainless Steel Wire and Wire Rods
each are listed in Table 1.
2
for Cold Heading and Cold Forging
1.4 This specification is based in concept and content on
A 555/A 555M Specification for General Requirements for
ISO 3506. The chemical and mechanical requirements speci-
2
Stainless Steel Wire and Wire Rods
fied for all property classes, except as given in 1.4.1, are
A 564/A564M Specification for Hot-Rolled and Cold-
essentially identical with classes of the same designation in
3
Finished Age-Hardening Stainless Steel Bars and Shapes
ISO 3506.
A 582 Specification for Free-Machining Stainless Steel
1.4.1 This specification includes all of the property classes
3
Bars
covered in ISO 3506. Additionally, it includes property classes
A 751 Test Methods, Practices, and Terminology for
A1-70, A2-70, A4-70, A1-80, A2-80, and A4-80 for products
2
Chemical Analysis of Steel Products
with nominal thread diameters larger than M20; and four
4
D 3951 Practice for Commercial Packaging
non-ISO property classes, C1-110, C4-110, C3-120; and P1-90.
E 29 Practice for Using Significant Digits in Test Data to
1.5 Supplementary requirements of an optional nature are
5
Determine Conformance with Specifications
provided, applicable only when agreed upon between the
E 353 Test Methods for Chemical Analysis of Stainless,
manufacturer and the purchaser at the time of the inquiry and
Heat-Resisting, Maraging, and Other Similar Chromium-
order.
6
Nickel-Iron Alloys
1.6 Suitable nuts for use with bolts, screws, and studs
F 606M Test Methods for Determining the Mechanical
included in this specification are covered by Specification
Properties of Externally and Internally Threaded Fasteners,
F 836M.
7
Washers, and Rivets [Metric]
1.7 The following safety hazards caveat pertains only to
F 836M Specification for Style 1 Stainless Steel Metric
the test method described in this specification. This standard
7
Nuts
does not purport to address the safety problems associated with
2
Annual Book of ASTM Standards, Vol 01.03.
1
3
This specification is under the jurisdiction of ASTM Committee F16 on
Annual Book of ASTM Standards, Vol 03.04.
4
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
Annual Book of ASTM Standards, Vol 15.09.
5
Fasteners.
Annual Book of ASTM Standards, Vol 14.02.
6
Current edition approved Oct. 10, 2001. Published November 2001. Originally
Annual Book of ASTM Standards, Vol 03.05.
7
published as F 738 – 81. Last previous edition F 738M – 00.
Annual Book of ASTM Standards, Vol 01.08.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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F 738M
TABLE 1 Property Classes of Stainless Steel Bolts, Screws, and
Studs
Property Class Permissible Alloys
A
A1-50 304, 304L, 305
A1-70 384, XM7
A1-80
4. Ordering Information
A2-50 4.1 Orders for bolts, screws and studs under this specifica-
A2-70 321, 347
tion shall include the following:
A2-80
4.1.1 Quantity (nu
...
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