Optionalsize: isoThreadSizeEnumOptionalpoint: isoSetScrewPointEnumOptionallength: numberOptionalunit: unitOfLengthEnumOptionalsizeThe thread size, such as M8.
OptionalunitThe unit every length the method takes or gives is in; the size names a metric thread whatever it is.
OptionalpointThe shape of the screw's end that bears on the part.
OptionallengthThe screw's whole length in unit, which decides whether it counts as short. Left out, a
long screw.
An ISO set screw's thread size, point and length and a unit, for
engineering.mechanical.fasteners.iso.setScrewSizes.