Socket head cap screw DIN 912 / ISO 4762, hex socket AF 4, M 5x55, steel 10.9 plain (black)

In machine and fixture building this DIN 912 socket head cap screw holds parts together with M 5 and 55 mm length. It is fitted with an AF 4 hex key, and the head stays slim at 8.5 mm diameter. The material is steel 10.9 plain (black).

Benefits

• Head diameter 8.5 mm at 5.0 mm head height to DIN 912, matching a cylindrical counterbore.
• The AF 4 hex socket transmits the tightening torque without wrench flats on the head.
• A thread length of at least 22 mm within 55 mm overall length leaves a plain shank section.
• Property class 10.9 allows higher preload than 8.8 at the same size M 5.

Applications

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

Standards and conformity

Head, AF 4 hex socket and M 5 thread follow DIN 912 in conjunction with ISO 4762. The material is documented as steel 10.9 plain (black).