ISO 7411:1984

Hexagon bolts for high-strength structural bolting with large width across flats (thread lengths according to ISO 888) — Product grade C — Property classes 8.8 and 10.9

Specifies series with metric dimensions and thread sizes form M 12 up to and including M 36 for use with nuts according to ISO 4775; tabulates general dimensions, specifications and reference standards, screw thread limits for tolerance class 6az, and for testing nut rotation requirements.