Hexagon head screw DIN 933 ISO 4017, full thread, M 12x20, AF 19, stainless steel A4

The hexagon head screw M 12x20 in stainless steel A4 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 19 mm at a head height of 7.5 mm.

Benefits

• Thread M 12 almost up to the head to DIN 933 and ISO 4017, load bearing over the length of 20 mm
• Hexagon head with 19 mm across flats to DIN and 18 mm to ISO for open end, ring and socket wrenches
• Head height of 7.5 mm keeps the build height of the joint M 12x20 low
• Stainless steel A4 for increased corrosion load such as chloride bearing surroundings

Applications

Surroundings with increased corrosion load such as chloride bearing air, plants near the coast, water and waste water technology, chemical apparatus.

Standards and conformity

Dimensions and thread design of size M 12x20 follow DIN 933 and ISO 4017. The width across flats amounts to 19 mm to DIN and 18 mm to ISO. The material is stainless steel A4.