Hexagon head bolt DIN 931 / ISO 4014, M 14x90, hexagon 22 mm, shank 56 mm, steel 8.8, zinc-plated

Large flanges and steelwork transfer their loads through a small number of heavy bolts. This hexagon head bolt M 14x90 to DIN 931 brings a shank of 56 mm and a thread of 34 mm for that purpose. The head is 8.8 mm high and measures 22 mm across flats, so a torque wrench has a safe grip. The material is steel of property class 8.8 with an electroplated zinc coating.

Advantages

• Head height of 8.8 mm keeps the overall height of the joint low.
• Thread length of 34 mm to DIN 931, sufficient for a nut and a washer in size M 14.
• Steel of property class 8.8 with an electroplated zinc coating, so the joint stays releasable in dry and occasionally damp surroundings.
• 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.
• Hexagon head with 22 mm across flats, so the tightening torque can be applied with an ordinary open-ended or ring spanner.

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 with an electroplated zinc coating.