I am treating my car to a 'G Coupler' to clamp on to nipple (be careful how you google one nono!) and fit my trusty old Wanner Grease Gun..

There are 3 choices of thread size

M10
1/8" BSP
1/8" NPT

I have excluded the M10 so is it likely to be BSP or NPT thread?

For the confused (or intrigued) here is a link to the G Coupler

Amazon link to G Coupler

Keith

Car 54 - 'Le Mans 62' 4/4 Supersport
OxMog Member (and associated with CranMog and SwanMog)