Specifies the characteristics of hexagon socket countersunk head screws with threads from M3 up to and including M20, with product grade A and property classes 8.8, 10.9 and 12.9.
SANS 1700-9-4:2008 history
0000 SANS 1700-9-4-2008
1998SANS 1700-9-4:1998 Fasteners Part 9: Hexagon socket head screws Section 4: Hexagon socket countersunk head screws