ISO 8678:1988 Preview
Cup head square neck bolts with small head and short neck -- Product grade B
This standard was last reviewed and confirmed in 2015. Therefore this version remains current.
Specifies the characteristics of products with metric dimensions and thread sizes from M 6 up to and including M 20; tabulates thread sizes M 6 up to M 20 with nominal lengths from 12 mm up to 160 mm and specifications with reference to International Standards; gives an example for the designation.
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