https://www.merlinmotorsport.co.uk/p/thread-adaptor-1-8bsp-to-7-16unf-bulkhead-g-743-03-04p
Goodridge thread adaptor 1/8BSP to -3JIC Bulkhead
Goodridge thread adaptor 1/8BSP to 7/16UNF bulkhead adaptor. Goodridge part number 743-03-04P from Merlin Motorsport.
thread adaptorgoodridgebulkhead