unc

Hi all I am currently restoring a classic car, a 1961 Warwick. I want to buy some replacement nuts and bolts but I am confused by the thread types. I know it is not metric so it must be UNC or UNF. Does anyone know the differences and the type it is likely to use. Thanks in advance. joe

Bear in mind it's 26 years old! One owner from new with original mechanics, metal, paint and upholstery, with 50k on the clock. His wife is nagging him to get rid of it for a new car perhaps Lexus or another MB.