SANS 1700-7-9:2003 Fasteners Part 7: External drive hexagon bolts and screws Section 9: Hexagon head screws with metric fine pitch thread - Product grades A and B
Specifies the characteristics of hexagon head screws with metric fine pitch thread with nominal thread diameters d from 8 mm to 64 mm of product grade A for nominal thread diameters d from 8 mm to 24 mm and nominal lengths, l, up to and including 10d of
SANS 1700-7-9:2003 history
2003SANS 1700-7-9:2003 Fasteners Part 7: External drive hexagon bolts and screws Section 9: Hexagon head screws with metric fine pitch thread - Product grades A and B