exhaust stud nuts

I'm trying to find what nuts in need for the turbo elbow to the down pipe (3nuts) I thought they was a standard 8mm but but they seam to small as I think it's a 9mm stud ?? Could anyone help tell me what size nuts the are please

All sorted

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To be fair it was a moment of madness to get the car running the up pipe didn't pull up high enough allowing enough thread to catch the nut are m10 x 1.25

Got mine from nissan

I all ready had some just a moment of madness and was getting dark

Never rush i know its fustrating when the dark starts to beat you but moral of storey one slack nut or bolt can cause problems if not straight away then later

I know Johnny I knew it was only exhaust manifold so wasn't overly concerned everything else got checked twice though, I just knew I had to get it started as the first 20 mins would be joy or tears that's all

Good stuff glad it was joy