e/British Association screw threads

Information
has gloss	eng: British Association or BA screw threads are a largely obsolete set of small screw threads, the largest being 0BA at 6 mm diameter. They were, and to some extent still are, used for miniature instruments and modelling.
lexicalization	eng: British Association screw threads
instance of	(noun) a fastener with a tapered threaded shank and a slotted head screw

Meaning
Swedish
lexicalization	swe: BA-gänga