Socket head cap screw DIN 912 / ISO 4762, hex socket AF 17, M 20x80, steel 12.9 plain (black)

This socket head cap screw to ISO 4762 creates the M 20 connection over 80 mm of length. The AF 17 hex socket sits in the head, which measures 30.0 mm across and stands 20.0 mm high. The screw is made of steel 12.9 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.
• A thread length of at least 52 mm within 80 mm overall length leaves a plain shank section.
• Property class 12.9 offers the highest strength in this range at the same size M 20.
• Dimensions to DIN 912 and ISO 4762, therefore interchangeable with existing M 20 joints.

Applications

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

Standards and conformity

The screw is dimensioned to DIN 912 and ISO 4762, which allows replacement of like-for-like parts in M 20. The material is stated as steel 12.9 plain (black).