Hexagon head screw DIN 933 ISO 4017, full thread, M 20x40, AF 30, zinc plated steel 10.9

The 40 mm long hexagon head screw M 20x40 transfers load through a thread that reaches almost up to the head. The material zinc plated steel of property class 10.9 determines the load capacity and the behaviour towards moisture. Across the flats the head measures 30 mm, its height comes to 12.5 mm.

Benefits

• Zinc plated surface for assemblies exposed to moisture
• Property class 10.9 as the characteristic value for the load capacity of the joint M 20x40
• Hexagon head with 30 mm across flats to DIN and ISO for open end, ring and socket wrenches
• Thread M 20 almost up to the head to DIN 933 and ISO 4017, load bearing over the length of 40 mm

Applications

Steel and equipment construction exposed to moisture, conveying technology, assembly of control cabinets and housings, mounting work in covered outdoor areas.

Standards and conformity

Dimensions and thread design of size M 20x40 follow DIN 933 and ISO 4017. The width across flats amounts to 30 mm and is stated identically in DIN and ISO. The material is zinc plated steel, property class 10.9.