Unifix Grade 8.8 Hex Set - M6 x 50 - Blue

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

Best current price£7.46from The Range

Colour

All Offers

4 offers from £7.46 - £8.75

View price history by clicking the chart icon.

The RangeUnifix Jcp Fixings Shield Anchors Loose Bolt Zyp - M8 X 60/10Mm - Box Of 30 - White
Free delivery in 1–3 days
£7.46
Visit shop
eBayUnifix Grade 8.8 Hex Set M6 x 50 - Box of 50
Free delivery in 1–3 days
£7.96
Visit shop
DebenhamsUnifix Unisex Blue Grade 8.8 Hex Set M6 X 50 - Box Of 50 In
Free delivery in 1–3 days
£8.02
Visit shop
B&QB&Q - Grade 8.8 Hex Set M6 X 50Box Of 50
Free delivery in 1–3 days
£8.75
Visit shop

Product Information

Full details

The Unifix Grade 8.8 Hex Set is an essential fastener kit designed for both professional tradespeople and DIY enthusiasts who require high-strength, reliable connections. Featuring a robust steel construction and a corrosion-resistant finish, these bolts, washers, and nuts are ideal for mechanical and structural assemblies where durability is paramount; however, users should note that these are intended for steel-to-steel or heavy-duty wood applications and may be overkill for light-duty domestic tasks.

All features

ColourBlue
Model Part Number1426124
BrandUnifix

Extended Product Information

FAQs

What does Grade 8.8 mean?

Grade 8.8 refers to the tensile strength of the steel; it is a medium-to-high strength rating suitable for most heavy-duty mechanical assemblies.

Are these bolts suitable for outdoor use?

They feature a corrosion-resistant finish, but they are not stainless steel. They are best suited for indoor or sheltered outdoor environments.

What does DIN933 denote?

DIN933 is the international standard for hex head bolts with full threading.

How many items are in one box?

Each box contains 50 complete sets, including the bolts, washers, and nuts.

Can these be used for structural wood framing?

Yes, provided the bolt length is appropriate and you use washers on both sides to prevent the head or nut from pulling into the wood.

Troubleshooting

Bolt does not thread into existing hole smoothly.

Check the hole for debris or paint build-up. Use a tap to clean the threads if necessary.

Nut feels loose after tightening.

Verify the bolt diameter matches the nut size. Ensure the washer is placed correctly to provide proper seat tension.

Pros and Cons

Pros

  • High tensile strength suitable for heavy-duty applications
  • Complete set includes matching washers and nuts
  • Corrosion-resistant coating for increased service life
  • Reliable DIN-standard manufacturing quality

Cons

  • May require specific wrench sizes for installation
  • Not suitable for marine or high-saline environments despite the coating
  • Heavier than standard consumer-grade fasteners

Setup, Compatibility & Care

To ensure a secure fit, use a standard metric wrench or socket set compatible with M6 hardware. When installing, always slide the DIN125A washer onto the bolt before threading it through the material to distribute pressure and prevent surface damage. Tighten until snug; for critical applications, consult a torque chart to ensure you do not exceed the bolt's yield strength. To maintain the finish, store the unused bolts in a dry area to prevent premature oxidation, and keep the container tightly closed.

Price History

DatePrice
Visit shop