PA66A5
3 PCS PA66A5 Black Gas Spring End Connector 1.25mm Thread Pitch M8 Female Thread
A nice touch is that you can buy 1PCS without committing to a set.
3 Pcs 1.25mm Thread Pitch Gas Spring End Connector Black M8 Female Thread
The 6 inch length helps you work in cramped spots where larger tools simply won't go.