SANS 1700-7-8:2003 Fasteners Part 7: External drive hexagon bolts and screws Section 8: Hexagon bolts for high-strength structural bolting with large width across flats (short thread length) - Product grade C - Property classes 8.8 and 10.9
Gives specifications for large series hexagon, high-strength structural bolts with metric dimensions in property classes 8.8 and 10.9, and thread sizes from M12 up to and including M36, with short thread lengths.
SANS 1700-7-8:2003 history
2003SANS 1700-7-8:2003 Fasteners Part 7: External drive hexagon bolts and screws Section 8: Hexagon bolts for high-strength structural bolting with large width across flats (short thread length) - Product grade C - Property classes 8.8 and 10.9