Hexagon head screw DIN 933 ISO 4017, full thread, M 8x20, AF 13, zinc plated steel 8.8

The hexagon head screw M 8x20 in zinc plated steel of property class 8.8 joins components with a thread that reaches almost up to the head as specified in DIN 933. Load bearing thread is therefore available over the full length of 20 mm, which simplifies short clamping lengths and through bolted assemblies. Across the flats the head measures 13 mm at a head height of 5.3 mm.

Benefits

• Head height of 5.3 mm keeps the build height of the joint M 8x20 low
• Short clamping lengths are possible because at 20 mm length no plain shank has to be allowed for
• Zinc plated surface for assemblies exposed to moisture
• Property class 8.8 as the characteristic value for the load capacity of the joint M 8x20
• Thread M 8 almost up to the head to DIN 933 and ISO 4017, load bearing over the length of 20 mm
• Hexagon head with 13 mm across flats to DIN and ISO for open end, ring and socket wrenches

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 8.8.