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Grade 8.8 High Tensile Steel Hex BoltsHigh Tensile Steel Grade 8.8 – 12.9 Screws, Fasteners and Fixings

For fasteners and fixings, high tensile steel is some of the best material on offer – and can be found in a number of homes and auto manufacturing.

Grade 8.8 high tensile steel is often referred to as the structural grade for bolts. It is the most common form of high tensile material and is usually stocked in plain finish or zinc. It can be plated in many other coatings.

For high tensile steel grade 8.8, a torque wrench will be required for the tightening of said product.

These products are built to last and work optimally under harsh usage and should be easily identifiable via a permanent marking on the head to allow the customer to differentiate them.

For grade 10.9, these are used in automotive applications and for bolting large, forged parts and are often made using carbon steel and boron steel.

Socket and Countersunk buttons are commonly manufactured in this grade. 

Grade 12.9 steel fasteners and fixings are for some of the heaviest jobs, such as securing engines and ensuring that drives are tamper proof.

The grade of the fastener doesn’t just determine how much stress that they can withstand, but also the kind of tool needed to be able to tighten them.

There is also Grade 14.9 (45H) which socket set screws are supplied in.

If you require more information or would like to order in high tensile steel from grade 8.8 to 12.9, please contact us.

See all materials and finishes here.

Specials and non standard fixings

Looking for fixings with an unusual head diameter or thread length?
Need fasteners with a non-standard finish?

Or do you have other special requirements? Custom fasteners are no problem for Fastenright!

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Fastener Terminology Glossary

There are a number of confusing names and terms within the Fastener industry, so we have created a handy terminology glossary to help.

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The Fastenright specialist team is available to discuss your requirements.

Call us now on +44 (0)1902 457734 or complete our contact form.
We look forward to helping you.

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