Hexagon head bolt DIN 931 / ISO 4014, M 8x140, hexagon 13 mm, shank 112 mm, steel 8.8, zinc-plated

In machine and fixture building the hexagon head bolt with shank is the standard fastener for drilled flanges. This version M 8x140 to DIN 931 carries 28 mm of thread and a plain shank of 112 mm that aligns the parts against each other. The hexagon head measures 13 mm across flats and 5.3 mm in height. The material is steel of property class 8.8 with an electroplated zinc coating.

Advantages

• Hexagon head with 13 mm across flats, so the tightening torque can be applied with an ordinary open-ended or ring spanner.
• Plain shank of 112 mm within 140 mm of total length, which places the shear plane in the full shank cross section instead of the thread.
• Thread length of 28 mm to DIN 931, sufficient for a nut and a washer in size M 8.
• Steel of property class 8.8 with an electroplated zinc coating, so the joint stays releasable in dry and occasionally damp surroundings.
• Head height of 5.3 mm keeps the overall height of the joint low.

Applications

Steelwork and frame structures with through holes for M 8. Mounting of motors, gearboxes and pumps where the plain shank of 112 mm takes the shear load. Assembly of housing covers and panels with a clamping length up to 112 mm. Replacement of damaged standard bolts in size M 8x140.

Standards and conformity

The bolt is dimensioned to DIN 931 and ISO 4014. The width across flats is 13 mm to DIN 931 and 13 mm to ISO 4014. The material is steel of property class 8.8 with an electroplated zinc coating.