Socket head cap screw DIN 912 / ISO 4762, hex socket AF 17, M 20x90, steel plain (black) 8.8

This socket head cap screw to DIN 912 joins components with the M 20 thread over a length of 90 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 plain (black) 8.8.

Benefits

• 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 90 mm overall length leaves a plain shank section.
• The AF 17 hex socket transmits the tightening torque without wrench flats on the head.
• Dimensions to DIN 912 and ISO 4762, therefore interchangeable with existing M 20 joints.
• Property class 8.8 in plain finish for protected or oily installation points.

Applications

• Machine and fixture building
• Bolting of flanges and covers
• Frame and profile structures
• Tool and mould making

Standards and conformity

The dimensions comply with DIN 912 and ISO 4762. Material and class are specified as steel plain (black) 8.8.