ASTM F788/F788M

Standard Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series

English 1997
0.000
ASTM
Detailed Information

1.1 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 (the washers of screw-washer assemblies are excluded). This specification covers metric series products with nominal diameters of 4 mm and larger and with specified minimum tensile strengths of 800 MPa and greater; and inch series products with nominal diameters of No. 5 (0.1 250 in.) and larger and with specified minimum tensile strengths of 90 000 psi and greater.

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