Hexagon head bolt DIN 931 / ISO 4014, M 14x90, hexagon 22 mm, thread length 34 mm, steel 8.8, plain

More highly preloaded joints need a defined shank cross section. This hexagon head bolt M 14x90 to DIN 931 in steel of property class 8.8, plain and black offers 56 mm of plain shank and limits the thread to 34 mm. Tightening takes place on the hexagon with 22 mm across flats at a head height of 8.8 mm. The surface is plain and black.

Advantages

• Dimensions to DIN 931 and ISO 4014, so replacement and repeat orders are unambiguous through the designation M 14x90.
• Plain shank of 56 mm within 90 mm of total length, which places the shear plane in the full shank cross section instead of the thread.
• Steel of property class 8.8, left plain and black, which means no coating thickness on the thread and an exact fit in the hole.
• Hexagon head with 22 mm across flats, so the tightening torque can be applied with an ordinary open-ended or ring spanner.
• Head height of 8.8 mm keeps the overall height of the joint low.

Applications

Fixture building with repeated changeovers in size M 14x90. Bolting of tank and pipe supports in wet areas. Mounting of sheet metal structures where the head height of 8.8 mm is limited. Retrofitting of existing plants using the designation DIN 931.

Standards and conformity

The bolt is dimensioned to DIN 931 and ISO 4014. The width across flats is 22 mm to DIN 931 and 22 mm to ISO 4014. The material is steel of property class 8.8, plain and black.