Thread

Thread captures generic thread specifications from the drawing. It stores the thread designation, pitch, direction, class of fit, and any notes about plating or sealing. The model links to associated features, such as holes or shafts, and records whether the thread is internal or external. With this information, manufacturing software can select tooling, verify compatibility with fasteners, or estimate machining time. The structured representation also aids inspection and procurement by highlighting critical threaded features across the document and supports analytics that group components by thread family or tolerance class, feeding change-detection dashboards and compliance reports for regulated products while informing stocking strategies for fasteners.

Bases: Feature

Represents a generic threaded feature in an engineering or technical drawing.

PARAMETER	DESCRIPTION
`reference_id`	Reference ID to identify the object. TYPE: `int`
`label`	A short description of the feature in a human-readable format. TYPE: `str`
`confidence`	Confidence in the feature extraction or interpretation. TYPE: `Confidence \| None`
`quantity`	The number of threads or instances. Must be non-negative. TYPE: `Decimal`
`diameter`	The diameter of the thread, including nominal size and tolerances. TYPE: `Size`
`spacing`	The spacing of the thread, defining the distance between thread crests. TYPE: `ThreadSpacing \| None`
`handedness`	The direction of the thread, such as LEFT or RIGHT. TYPE: `ThreadHandedness`
`depth`	The length of the threaded feature, including nominal size and tolerances. TYPE: `Depth \| None` DEFAULT: `None`

Source code in werk24/models/v2/models.py

class Thread(Feature):
    """
    Represents a generic threaded feature in an engineering or technical drawing.
    """

    quantity: Decimal = Field(
        ...,
        ge=0,
        description="The number of threads or instances. Must be non-negative.",
        examples=[Decimal("1")],
    )

    diameter: Size = Field(
        ...,
        description="The diameter of the thread, including nominal size and tolerances.",
    )

    spacing: Optional[ThreadSpacing] = Field(
        ...,
        description="The spacing of the thread, defining the distance between thread crests.",
    )

    handedness: ThreadHandedness = Field(
        ..., description="The direction of the thread, such as LEFT or RIGHT."
    )

    depth: Optional[Depth] = Field(
        default=None,
        description="The length of the threaded feature, including nominal size and tolerances.",
    )