MG Enthusiasts - home of the MG BBS

These BMC engines used American based Unified Fine (UNF) and course (UNC) threads, (ANF and ANC in the USA) in the 'A','B' and 'C' series M.G. used. Such nuts and bolt heads had to be used with spanners that are termed "A/F", indicating the distance Across the Flats, a … ................
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