Hexagon head screw DIN 933 ISO 4017, full thread, M 20x30, AF 30, plain steel 10.9

Where a through bolted joint has to carry load over the entire clamping length, the hexagon head screw M 20x30 in plain steel with black finish, property class 10.9 does the work. According to DIN 933 the thread runs almost up to the 12.5 mm high head, the screw measures 30 mm. A wrench of 30 mm is all that assembly takes.

Benefits

• Thread M 20 almost up to the head to DIN 933 and ISO 4017, load bearing over the length of 30 mm
• Hexagon head with 30 mm across flats to DIN and ISO for open end, ring and socket wrenches
• Head height of 12.5 mm keeps the build height of the joint M 20x30 low
• Plain surface without additional coating, the dimensions follow DIN 933 directly
• Property class 10.9 as the characteristic value for the load capacity of the joint M 20x30
• Short clamping lengths are possible because at 30 mm length no plain shank has to be allowed for

Applications

Machine and plant construction in dry surroundings, jig and tool making, bolting of gearbox and bearing housings, maintenance work on existing equipment.

Standards and conformity

Dimensions and thread design of size M 20x30 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 plain steel (black finish), property class 10.9.