Optionalsize: ansiThreadSizeEnumOptionalseries: ansiThreadSeriesEnumOptionallength: numberOptionalmodelledThread: booleanOptionalunit: unitOfLengthEnumOptionalframe: Bit.Inputs.Base.FrameOptionalsizeThe thread size, such as 1/4 or #10.
OptionalunitThe unit the fastener is made in and its lengths are read in; the size names an inch thread whatever it is.
OptionalframeWhere it sits: the origin where it bears, as under a head, the normal along its axis away from the part. Left out, the ground, facing +Y.
OptionalseriesWhether the thread is coarse (UNC) or fine (UNF), setting a modelled thread's pitch and the tip's chamfer; #0, which has no coarse thread, is cut fine.
OptionallengthThe length of the screw from under its head to its tip, in unit.
OptionalmodelledWhen true the threaded length is modelled, as parts.mechanical.machining.ansi.thread cuts it, its
faces all named thread; when false the thread is a light cosmetic face.
An ASME B18.3 cap screw, for
parts.mechanical.fasteners.ansi.socketHeadCapScrewand its twin with face roles: its size and series, its length, the unit and where its head sits.