Optionalsize: isoThreadSizeEnumOptionalchamfered: booleanOptionalunit: unitOfLengthEnumOptionalframe: Bit.Inputs.Base.FrameOptionalsizeThe thread size, such as M8.
OptionalunitThe unit the fastener is made in and its lengths are read in; the size names a metric 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.
OptionalchamferedWhen true, the ISO 7090 washer, chamfered on the outside of the face away from the seat, from M5; when false, the flat ISO 7089 one.
An ISO plain washer for
parts.mechanical.fasteners.iso.washerand its twin with face roles: its size, whether it is the ISO 7090 washer chamfered on one face or the flat ISO 7089 one, the unit and where it bears.