Significance and Use
For the purposes of determining compliance with the specified limits for properties listed in this specification, an observed value or calculated value shall be rounded in accordance with Practice E29.
1.1 This specification covers the requirements for stainless steel bolts, hex cap screws, and studs 0.25 to 1.50 in., inclusive, in nominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance.
1.2 Seven groups of stainless steel alloys are covered, including twelve austenitic, two ferritic, four martensitic, and one precipitation hardening.
|1|| 304, 305, 384, 304 L,|| (CW) cold workedC|
| || 18-9LW, 302HQD|| |
|2|| 316, 316 L|| (CW) cold workedC|
|3|| 321, 347|| (CW) cold workedC|
|4|| 430E|| (CW) cold workedC|
|5|| 410F|| (H) hardened and tempered|
|6|| 431|| (H) hardened and tempered|
|7|| 630|| (AH) age hardened |
A Unless otherwise specified on the inquiry and order, the choice of an alloy from within a group shall be at the discretion of the fastener manufacturer (see 6.1).
B See 4.2 for options.
C Sizes 0.75 in. and larger may be hot worked and solution annealed.
D When approved by the purchaser, Alloys 303, 303Se, or XM1 may be furnished.
E When approved by the purchaser, Alloy 430F may be furnished.
F When approved by the purchaser, Alloys 416 or 416Se may be furnished.
1.3 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.
1.4 Suitable nuts for use with bolts, hex cap screws, and studs included in this specification are covered by Specification F594. Unless otherwise specified, all nuts used on these fasteners shall conform to the requirements of Specification F594, shall be of the same alloy group, and shall have a specified minimum proof stress equal to or greater than the specified minimum full-size tensile strength of the externally threaded fastener.
1.5 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.6 This standard does not purport to address all of the safety concerns, 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A276 Specification for Stainless Steel Bars and Shapes
A342/A342M Test Methods for Permeability of Feebly Magnetic Materials
A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A484/A484M Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings
A493 Specification for Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
A555/A555M Specification for General Requirements for Stainless Steel Wire and Wire Rods
A564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
A582/A582M Specification for Free-Machining Stainless Steel Bars
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A967 Specification for Chemical Passivation Treatments for Stainless Steel Parts
D3951 Practice for Commercial Packaging
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
F594 Specification for Stainless Steel Nuts
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
B18.2.1 Square and Hex Bolts and Screws, Including Hex Cap Screws
bolts; general use; hex cap screws; stainless; studs; Bolting materials; Corrosive service applications; Hex cap screws/studs; Steel bolting materials--specifications; Studs (materials/applications)--specifications; Stainless steel bolting materials--specifications; Stainless steel screws--specifications
ICS Number Code 21.060.10 (Bolts, screws, studs)
ASTM International is a member of CrossRef.
Citing ASTM Standards
[Back to Top]