Hexagon head screw DIN 933 ISO 4017, full thread, M 12x50, AF 19/18, plain steel 10.9

This version M 12x50 in plain steel of property class 10.9 suits through bolted joints where the thread has to engage over the entire length of 50 mm. The full thread to ISO 4017 removes the need to look for a matching shank length.

Benefits

• Thread almost up to the head to DIN 933 and ISO 4017, load bearing thread over the full length of 50 mm
• Property class 10.9 for joints loaded beyond what class 8.8 allows
• Hexagon head with 19 mm across the flats for open end, ring and socket wrenches, to ISO 4017 the value is 18 mm
• Plain surface without an added layer, so the dimensions match DIN 933 directly
• Metric coarse thread M 12, matching nuts and tapped holes are standardised and widely available

Applications

Internal bolted joints in machine building, test rigs and fixtures, mounting of drive components, repair and spare part stock.

Standards and conformity

Dimensions and thread version follow DIN 933 and ISO 4017. The width across flats is 19 mm to DIN and 18 mm to ISO. The material is plain steel (black finish) of property class 10.9.