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Unifix Hex Set - White

Unifix Hex Set - White

The Unifix Grade 8.8 Hex Set is designed for durability and reliability in various industrial and ...

Best current price£6.39from The Range

Colour
BlueSilverWhite

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The RangeUnifix Grade 8.8 Hex Sets M6 X 25 - Box Of 50 - White
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£6.39
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DebenhamsUnifix Unisex Silver Grade 8.8 Hex Sets M6 X 25 - Box Of 50 In
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£6.63
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eBayUnifix Grade 8.8 Hex Sets M6 x 25 - Box of 50
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£6.64
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OnBuy.comUnifix Grade 8.8 Hex Sets M6 X 25 - Box Of 50 5014196544786
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£6.90
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B&QB&Q - Grade 8.8 Hex Sets M6 X 25Box Of 50
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£7.14
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Product Information

Full details

The Unifix Grade 8.8 Hex Set is designed for professional builders, fabricators, and DIY enthusiasts who require high-strength fastening solutions for heavy-duty industrial or construction projects. Featuring durable M8 x 75 bolts, nuts, and washers, this set provides exceptional structural reliability and adherence to strict DIN standards; however, users should ensure these bolts meet the specific torque requirements of their particular project before installation.

All features

ColourWhite
Model Part Number1427266
BrandUnifix

Extended Product Information

FAQs

What does Grade 8.8 mean?

Grade 8.8 indicates the mechanical properties of the steel, specifically that the bolt has a minimum tensile strength of 800 MPa and a yield strength of 640 MPa.

Are these bolts fully threaded?

Yes, these bolts comply with DIN 933, which designates a fully threaded hex bolt design.

What is the diameter and length of the bolts?

The bolts are M8 in diameter and 75mm in length.

How many items are in the box?

The box contains 30 sets, including bolts, nuts, and washers.

Can these be used outdoors?

While suitable for many environments, they should be inspected regularly for signs of corrosion if exposed to moisture or harsh weather.

Troubleshooting

Bolt is difficult to screw into pre-drilled hole

Check that the hole diameter is correct (M8 requires 9mm clearance) and ensure no debris is obstructing the thread path.

Nut feels loose or cross-threads easily

Back the nut off completely and start again to ensure the threads are aligned, as force can damage the bolt lead thread.

Pros and Cons

Pros

  • High tensile strength suitable for heavy-duty use
  • Comprehensive set includes all necessary washers and nuts
  • Verified compliance with international DIN standards
  • Convenient bulk packaging for multi-fastener projects

Cons

  • Fixed M8 size may not fit all hole diameters
  • 75mm length requires specific clearance behind the assembly
  • Grade 8.8 finish may require secondary protection in highly corrosive environments

Setup, Compatibility & Care

To ensure the longevity of your Unifix Grade 8.8 hardware, follow these guidelines:

  1. Preparation: Ensure the material being fastened is pre-drilled to at least 9mm to allow for the M8 bolt diameter without excessive force.
  2. Installation: Use a calibrated torque wrench or a standard box-end wrench. Avoid overtightening, which can strip the threads or cause permanent material fatigue.
  3. Compatibility: These components are fully compliant with DIN standards, making them compatible with other DIN-spec hardware of the same thread pitch and diameter.
  4. Care: While the white finish provides basic protection, if used in damp or outdoor settings, consider applying an anti-corrosion spray or grease to the threads during installation to prevent seizing.

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