ASTM F 812/F 812M - 07 Standard Specification for Surface Discontinuities of Nuts, Inch and Metric Series

American Society for Testing and Materials (ASTM). Current edition approved Nov. 15, 2007. Published December 2007. Originally approved in 1983. Last previous edition approved in 2003 as F 812/F 812M – 03. 5 p. This specification establishes allowable limits for the various types of surface discontinuities that may occur during the manufacture and processing of metric-series nuts with nominal diameters 5 mm and larger and inch-series nuts with nominal diameters 1⁄4 in. and larger.