This International Standard specifies the characteristics of hexagon socket countersunk head screws with threads from M3 up to and including M20, of product grade A and property classes 8.8, 10.9 and 12.9. NOTE — Particular attention is drawn to the note in table 2 and to table 3, concerning the limitation on ultimate tensile load. Gauging of hexagon sockets is specified in annex A.
If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, for example ISO 261, ISO 888, ISO 898-1, ISO 965-2 and ISO 4759-1.
SANS 1700-9-4:1998 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