Hex Head Bolt Niczuk M8 x 70 mm – metric hexagonal screw bolt M8x70

Hex Head Bolt Niczuk M8 x 70 mm is a metric hexagonal screw bolt with an M8 thread diameter and 70 mm overall length. This fastener is designed for joining metal or wooden parts where a hex head allows tightening with a wrench or socket. The bolt provides standard metric threads suitable for common construction, assembly and repair tasks that require a reliable M8 threaded connection.

Advantages

The hex head design ensures easy grip and torque transfer when using spanners or sockets, enabling secure and consistent tightening. The metric M8 thread sizing offers compatibility with standard M8 nuts and tapped holes. The 70 mm length gives sufficient thread engagement for medium-thickness materials and assemblies, reducing the need for long washers or special fittings. The simple cylindrical shank and defined thread profile support predictable clamping force and repeatable installation.

Suitable for

• Structural and non-structural metal joinery
• Wood-to-metal connections in furniture and fixtures
• Assembly of machinery frames and equipment
• Repair and maintenance tasks requiring standard M8 fastening
• DIY projects that use metric hex bolts

Key specifications

• Thread diameter: M8 (metric)
• Overall length: 70 mm
• Head type: hexagonal head for wrench or socket use
• Thread form: standard metric thread profile
• Application: fastening of metal and wood components

How to use

Select a matching M8 nut or a tapped M8 threaded hole and align the bolt through the components to be joined. Use an appropriately sized spanner or socket on the hex head to tighten until the required clamping force is achieved. If joining softer materials or thin sheets, consider using a washer beneath the head to distribute load and prevent pull-through. Ensure thread engagement is sufficient—typically several full threads should extend past the nut or engage fully in the tapped hole.

Usage recommendations

For reliable performance, choose a washer and nut rated for the intended load, and apply a thread lubricant or anti-seize compound if frequent disassembly or corrosion protection is required. Verify material compatibility and, where safety-critical loads are present, follow torque specifications from the equipment manufacturer or engineering guidance.