Designation: F /F M â 07 Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series1 This. ASTM F/FM: Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series. Designation: F /F M – 05 Standard Speci?cation for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series1 This.
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Supplementary Requirements shall in no way negate any requirement of the speci? After etch, the samples shall be examined under a magnification v788 the presence of laps. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
ASTM F788 – 13(2018)
These surface discontinuities shall be inspected in accordance with the specified requirements. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
After etch, the samples shall be examined f88 a 10 3 magni? There are no ISO standards for surfacediscontinuities on any inch-series products. Originally approved in If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.
The valuesstated in each system are not exact equivalents, therefore, eachsystem must be used independently of the other. This standard has been approved for use by agencies of the Department of Defense. Limits arespecified in 5.
Please login to your authorized staff account to use this feature. This specification establishes allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of f7888, screws, and studs, including heat-treated machine screws, tapping screws, and sems.
F Terminology for F16 Mechanical Fasteners. Types of Surface Discontinuities see Terminology F for de? Get astm e94 for free from our online library: This specification covers metric series products with nominal diameters of 4 mm and larger and with specified minimum tensile strengths of MPa and higher; and inch series products with nominal diameters of No. Voids are produced by marks or impressions of chips shear burrs or by rust formation on the raw material.
Are you sure you want to empty the cart? Shear bursts may also occuron the sides of hex-head products.
Typical shear bursts are shown in Fig. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.
Typical shear bursts areshown in Fig. Remember me for one month.
ASTM-F/FM-, 0 –
ASTM A36 – Limits are specified in5. A number in parentheses indicates the year of f878 reapproval. Combiningvalues from the two systems may result in nonconformancewith the specification. No items in cart. There are no ISO standards for surface discontinuities on any inch-series products.
NOTE 2Bursts and shear bursts within the limits of this specificationmay be unsightly, but do not affect the mechanical properties or functionalrequirements of the bolt. The section shall be etched for microscopic examination in accordance with Test Method E Historical Version s – view previous versions of standard.
Appendix 2 astm d Shear bursts may also occur on the sides of hex-head products. Visualinspection can include the use of devices that provide up to,and including, power magnification. ASTM B – Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the aboveaddress or at phonefaxor service astm.
Shear bursts occur most frequently at the periphery of products having? Published on Nov View Download This standard has been approved for use by agencies of the Department of Defense.