Hexagon head screw DIN 933 ISO 4017, full thread, M 8x20, AF 13, zinc plated steel 10.9

The 20 mm long hexagon head screw M 8x20 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 13 mm, its height comes to 5.3 mm.

Benefits

• Short clamping lengths are possible because at 20 mm length no plain shank has to be allowed for
• Hexagon head with 13 mm across flats to DIN and ISO for open end, ring and socket wrenches
• Property class 10.9 as the characteristic value for the load capacity of the joint M 8x20
• Zinc plated surface for assemblies exposed to moisture
• Thread M 8 almost up to the head to DIN 933 and ISO 4017, load bearing over the length of 20 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 8x20 follow DIN 933 and ISO 4017. The width across flats amounts to 13 mm and is stated identically in DIN and ISO. The material is zinc plated steel, property class 10.9.