Socket head cap screw DIN 912 / ISO 4762, hex socket AF 17, M 20x70, steel 10.9 plain (black)

This socket head cap screw to DIN 912 joins components with the M 20 thread over a length of 70 mm. It is tightened through the AF 17 hex socket, and the head measures 30.0 mm in diameter at 20.0 mm height. The specified material is steel 10.9 plain (black).

Benefits

• The AF 17 hex socket transmits the tightening torque without wrench flats on the head.
• Head diameter 30.0 mm at 20.0 mm head height to DIN 912, matching a cylindrical counterbore.
• Dimensions to DIN 912 and ISO 4762, therefore interchangeable with existing M 20 joints.
• The thread running nearly up to the head uses the full length of 70 mm for engagement.

Applications

• Highly loaded flange joints
• Drive and gearbox engineering
• Clamping fixtures in tool making
• Hydraulic and pneumatic power units

Standards and conformity

Head, AF 17 hex socket and M 20 thread follow DIN 912 in conjunction with ISO 4762. The material is documented as steel 10.9 plain (black).