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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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. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Voids are produced by marks or impressions of chips shear burrs or by rust formation on the raw material. Voids are produced by marks or impressions of chips shear burrs or by rust formation on the raw material.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility. The section shall be etched for microscopic examina-tion in accordance with Test Method E The valuesstated in each system are not exact equivalents, therefore, eachsystem must be used independently of the other.

There are no ISO standards for surface discontinuities on any inch-series products. A number in parentheses indicates the year of last reapproval. NOTE 1—Forging cracks within the limits of this speci? ASTM A – Land Use and Development. For metric series products, D and Dc are in millime-tres; for inch-series products, D and Dc are in inches.

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This specification establishes allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of bolts, screws, and studs, including heat-treated machine screws, tapping screws, and sems.

F Terminology for F16 Mechanical Fasteners.

There are no ISO standards for surface discontinuities on any inch-series products. Remember me for one month.

There were no books found for the applied search filters. Typical voids are shown in Fig.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part ff788 the standard. 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.

Approved June 1, 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. NOTE 2—Bursts and shear bursts within the limits of this speci?

ASTM-F/FM-, 0 –

Supplementary Requirements shall in no way negate anyrequirement of the specification itself. Limits are specified in5. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Shear bursts occur most frequently at the periphery of productshaving flanged or circular heads.

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Copyright Compu-tecture, Inc. Link to Active This link will always route to the current Active version of the standard.

ASTM F788 – 13(2018)

Shear bursts occur most frequently at the periphery of products having? Shear bursts may also occuron the sides of hex-head products.

They arenot planished during forging. Search book title Enter keywords for book title search. They are not planished during forging. Visualinspection can include the use of devices that provide up to,and g788, power magnification. This standard has been approved for use by agencies of the Department of Defense. Current edition approved Nov.

Print 1 2 3 4 5 page sstarting from page current page. There are no ISO standards for surface discontinuities on any inch-series products. The values stated in each system are not exact equivalents, therefore, each system must be used independently of the other. Acceptance shallbe based on the requirements of S1. Please login to your authorized staff account to use this feature.

Types of surface discontinuities are: This specification covers metric series products with nominaldiameters of 4 mm and larger satm with specified minimumtensile strengths of MPa and higher; ast inch seriesproducts with nominal diameters of No.

Last modified: October 11, 2020