• Maximum values unless otherwise stated.
• Types A2 and A4 may contain up to a maximum of 4% copper.
• The selection of steel grades within a group is the prerogative of the manufacturer, unless the purchaser has specified particular steels to ISO or national standards.
• Different grades of steel may be used as long as all physical and mechanical properties and the corresponding corrosion resistance of the finished product are achieved.  Only when all these conditions are fulfilled may finished articles be marked in accordance with DIN 267 Part 11.

Notes on application:

• When selecting the correct screw diameter it should be ensured that the total load on the screw does not exceed 90% of the standardized 0.2% yield stress.  Care should be taken to ensure correct initial tensioning, with a torque wrench wherever possible.

• Experience has shown that a utilization of 70% of the total load is reasonable average for the initial stressing force to allow additional forces in service to be taken up.

**The table above is only intended as an aid for quick comparison**