BS EN ISO 898-1 Grade 8.8, 10.9 & 12.9

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BS EN ISO 898 is an international standard that defines the mechanical properties of metric fasteners made of carbon steel and alloy steel

Description of Material

BS EN ISO 898-1 Grade 8.8, 10.9 and 12.9 are carbon alloy steel fasteners grades used throughout the general engineering sector for mechanical jointing of components.
Differing from general commercial bolting found in hardware stores, LSFH offers a high quality fully traceable product, using feed material from accredited supply chains. LSFH offers full certification meeting the specification and testing criteria detailed under BS EN ISO 898-1.

BS EN ISO 898-1 8.8 10.9 12.9

LoneStar Manufactures

Studbolts

✓

Studding

✓

Hexagon Headed Bolting

✓

Socket Headed Bolting

✓

Double Ended and Waisted Studs

✓

Associated OEM Parts

✓

LoneStar Manufactures

Metric Coarse

✓

Metric Fine

✓

Imperial UNRC

Imperial 8UN

Imperial UNF

ACME

✓

Metric sizes available

Up to M100

Carbon

0.20-0.55%

Manganese

…

Phosphorus

0.025% Max

Sulphur

0.025% Max

Silicon

…

Chromium

…

Nickel

…

Molybdenum

…

Copper

…

Nitrogen

…

Titanium

…

Vanadium

…

Aluminium

…

Boron

0.003% Max

Tensile Strength min, MPa

Yield Strength min, 0.2% offset. MPa

Elongation min% , mm

Reduction of Area min%

Hardness

8.8 (16mm dia & under)

800

640

22-32 HRC

8.8 (over 16mm dia)

830

660

23-34 HRC

10.9

1040

940

32-39 HRC

12.9

1220

1100

39-44 HRC

Test Temperature

Units

Min

8.8 (16mm and over)

Room temp

10.9

Room temp

Disclaimer

All information is for illustrutive purposes only.
LoneStar Group accepts no responsibility for the accuracy of data contained within or the use of any of the data by other parties. Properties do vary with the size and condition of the material.

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For detailed product information or custom pricing, please reach out to LoneStar to discuss your project requirements and receive a tailored quotation.