Hexagon head bolt DIN 931 / ISO 4014, M 6x75, hexagon 10 mm, shank 57 mm, steel 8.8, zinc-plated

When thin sheets and small add-on parts are bolted together, every millimetre of head height counts. This hexagon head bolt M 6x75 to DIN 931 has a head only 4.0 mm high and is tightened across flats of 10 mm. Of the total length of 75 mm, 18 mm carry the thread while the remaining 57 mm form a plain shank. The shank bears against the drilled hole and takes shear loads instead of passing them through the thread flanks. The material is steel of property class 8.8 with an electroplated zinc coating.

Advantages

• Thread length of 18 mm to DIN 931, sufficient for a nut and a washer in size M 6.
• Plain shank of 57 mm within 75 mm of total length, which places the shear plane in the full shank cross section instead of the thread.
• Head height of 4.0 mm keeps the overall height of the joint low.
• Hexagon head with 10 mm across flats, so the tightening torque can be applied with an ordinary open-ended or ring spanner.
• Steel of property class 8.8 with an electroplated zinc coating, so the joint stays releasable in dry and occasionally damp surroundings.

Applications

Conveying and plant equipment where joints in size M 6 are undone regularly. Bolting of profile frames and cross beams over a clamping range up to 75 mm. Mounting of guide rails and stops with a fitted hole for the shank. Joints where the width across flats of 10 mm has to match the available tools.

Standards and conformity

The bolt is dimensioned to DIN 931 and ISO 4014. The width across flats is 10 mm to DIN 931 and 10 mm to ISO 4014. The material is steel of property class 8.8 with an electroplated zinc coating.