Does there exist an extra heavy duty Keensert with internal thread M8?

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Question
We are currently investigating the possibility of reinforcing a threaded application with a Keensert. The thread size of the bolt is M8. We are aware that there are 2 versions of Keensert with internal thread M8 exist: the light duty and heavy duty one.
However we were wondering if there is also an extra heavy duty one available.

Answer
Thank you for asking your question.
There are indeed an light duty and heavy duty Keensert with internal thread M8.

The light duty one is KNM8x1.25. This Keensert has an external diameter of M12x1.25.
The heavy duty one is KNHM8x1.25. This Keensert has an external diameter of M14x1.5.

There does exist an extra heavy duty Keensert with an internal thread of M8.
This product is called 1420-48-3.
The external diameter of this Keensert is M16x1.5

Please find enclosed the technical drawing on this extra heavy duty Keensert.

Extra heavy duty Keensert 1420-48-3 - internal thread M8x1.25 - external thread M16x1.5

Extra heavy duty Keensert 1420-48-3 - internal thread M8x1.25 - external thread M16x1.5

 

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