ASTM F568M-07
Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
- Standard No.
- ASTM F568M-07
- Release Date
- 2007
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- 2012-01
- Latest
- ASTM F568M-07
- Scope
1.1 This specification covers chemical and mechanical requirements for nine property classes of carbon and alloy steel externally threaded metric fasteners in nominal thread diameters M1.6 through M100 suited for use in general engineering applications.
1.2 This specification does not cover dimensional requirements for fasteners of any property class. When referencing this specification for procurement purposes, it is mandatory that size, type, style, and any special dimensions of the product be additionally specified.
1.2.1 In case of any conflict in requirements, the requirements of the individual product specification shall take precedence over those of this general specification.
1.2.2 The purchaser may specify additional requirements which do not negate any of the provisions of this general specification or of the individual product specification. Such additional requirements, the acceptance of which are subject to negotiation with the supplier, must be included in the order information (see Section 3).
1.3 Requirements for seven of the nine property classes, 4.6, 4.8, 5.8, 8.8, 9.8, 10.9, and 12.9, are essentially identical with requirements given for these classes in ISO 898-1. The other two, 8.8.3 and 10.9.3, are not recognized in ISO standards.
1.4 Classes 8.8.3 and 10.9.3 bolts, screws, and studs have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels covered in Specification A 588/A 588M
. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition. See 5.2. When properly exposed to the atmosphere, these steels can be used bare (uncoated) for many applications. 1.5 When agreed on by the purchaser, Class 5.8 fasteners may be supplied when either Classes 4.6 or 4.8 are ordered; Class 4.8 may be supplied when Class 4.6 is ordered; Class 8.8.3 may be supplied when Class 8.8 is ordered; and Class 10.9.3 may be supplied when Class 10.9 is ordered.
1.6 The product size range for which each property class is applicable is given in Table 1 and Table 2 on chemical composition requirements, and the mechanical requirements table (see Table 3).
1.7 Appendix X1 gives conversion guidance to assist designers and purchasers in the selection of a suitable property class.
1.8 Appendix X2 explains the significance of the property class designation numerals.
ASTM F568M-07 Referenced Document
- ASTM A153/A153M Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
- ASTM A307 Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strangth
- ASTM A325 Standard Specification for High-Strength Bolts For Structural Steel Joints
- ASTM A325M Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength &40;Metric&41;*， 2024-04-19 Update
- ASTM A354 Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners
- ASTM A449 Standard Specification for Quenched And Tempered Steel Bolts And Studs
- ASTM A490 Standard Specification for Quenched And Tempered Alloy Steel Bolts For Structural Steel Joints
- ASTM A490M Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural Steel Joints (Metric) *， 2024-04-19 Update
- ASTM A574 Standard Specification for Alloy Steel Socket-Head Cap Screws
- ASTM A588/A588M Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance
- ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
- ASTM B695 Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
- ASTM D3951 Standard Practice for Commercial Packaging
- ASTM F1470 Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
- ASTM F606 Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets
- ASTM F606M Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets [Metric]
- ASTM F788/F788M Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
- ASTM G101 Standard Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels
ASTM F568M-07 history
- 2007 ASTM F568M-07 Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
- 2004 ASTM F568M-04 Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
- 2002 ASTM F568M-02 Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
- 1998 ASTM F568M-98 Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners
