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Unifix Hexagon Setscrews - Grey - M8 x 25

Unifix Hexagon Setscrews - Grey - M8 x 25

The Unifix Hexagon Setscrews are designed for reliable fastening in various industrial and DIY app...

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Unifix A2-304 St/St Hexagon Setscrews M8 X 40 - Ubssmhs08 040 - Grey

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19 offers from £5.61 - £8.84

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The RangeUnifix A2-304 St/St Hexagon Setscrews M8 X 40 - Ubssmhs08 040 - Grey
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eBayUnifix A2-304 Hexagon Setscrews M8 x 40 - Bag of 2
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B&QB&Q - A2-304 St/st Hexagon Setscrews M8 X 40Ubssmhs08 040
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DebenhamsUnifix Unisex Silver A2-304 Hexagon Setscrews M 6 X 50 In
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Product Information

Full details

The Unifix Hexagon Setscrews are engineered for professionals and DIY enthusiasts requiring reliable, heavy-duty fastening solutions in industrial and home construction projects. These setscrews provide exceptional hold and structural integrity through a precise hexagon head design that facilitates easy installation with standard wrenches or sockets. While these screws offer superior durability, users should ensure they are selecting the correct metric thread size and length for their specific material thickness to avoid depth issues during installation.

All features

ColourGrey
Model Part NumberUbssmhs08 025
BrandUnifix

Extended Product Information

FAQs

What does DIN 933 mean?

DIN 933 is a German industry standard that specifies the dimensions and tolerances for hexagon head screws with full threading.

Can these be used with power tools?

Yes, they can be used with impact drivers or power sockets provided the tool is set to the correct torque to avoid damaging the threads.

Are these screws fully threaded?

Yes, as per DIN 933 standards, these setscrews are typically threaded along the entire length of the shank.

Do I need a washer with these?

Using a washer is recommended to distribute load pressure evenly and protect the surface of the material you are fastening.

Are these suitable for outdoor use?

While durable, their suitability for outdoors depends on the specific material finish; if used in high-corrosion environments, consider stainless steel alternatives.

Troubleshooting

Screw is difficult to turn during installation

Back the screw out and check for debris in the threaded hole or signs of cross-threading.

Head rounding or slipping

Ensure you are using the correct metric socket or wrench size that fits the hex head precisely.

Pros and Cons

Pros

  • High-torque compatibility via hexagon head
  • Meets industry-recognized DIN 933 standards
  • Durable construction for long-term hold
  • Easy to install with standard mechanical tools

Cons

  • Requires specific tool sizing for proper grip
  • Must be matched carefully to thread pitch requirements
  • Limited to threaded applications

Setup, Compatibility & Care

To ensure the best results, always verify that the tapped hole or nut matches the metric size of your setscrew. During installation, start the thread by hand to prevent cross-threading, then finish tightening with a manual wrench to reach the desired torque specification. When working in outdoor or high-humidity environments, consider applying a light coat of anti-seize or oil to the threads to prevent future corrosion. Store screws in a dry container to maintain the integrity of the finish and prevent surface oxidation.

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