I was after a bit of help gave BHM a phone call to find out the size of my sump plug as I wish to replace it with a 1/8th Temp Transducer that fits into a s/steel Cosworth sump plug . Keith found one gave me the details M14 x 1.5 . Then sent me the plug FOC . I sent him some Stornaway black pudding I know how much he likes it . I appreciate good service and help .