{
  "category": "Hex Bolts",
  "vertical": "fastener-distribution",
  "source": "https://getclaro.ai/resources/attribute-library/fastener-distribution/hex-bolts/",
  "status": "editorial-draft",
  "note": "Editorial reference template. Example values show format only and do not describe a real SKU. Not an official ETIM or ECLASS class.",
  "groups": [
    {
      "key": "identity",
      "name": "Identity",
      "check": "Preserve leading zeros and punctuation, validate against the manufacturer record, and check the GTIN check digit and packaging level before linking."
    },
    {
      "key": "technical",
      "name": "Technical specifications",
      "check": "Store the number and unit separately. Convert only when the source unit and test conditions are known."
    },
    {
      "key": "selection",
      "name": "Selection attributes",
      "check": "Map supplier wording to a governed vocabulary only after checking the source text and which variant it applies to."
    },
    {
      "key": "fit",
      "name": "Fit & compatibility",
      "check": "Keep model and series qualifiers. A similar-looking part is not a verified fit until a source says so."
    },
    {
      "key": "evidence",
      "name": "Evidence & compliance",
      "check": "Link the manufacturer document or label with its edition or date. Never copy a certification from a neighboring SKU."
    }
  ],
  "fields": [
    {
      "key": "product_type",
      "label": "Product Type",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Hex Cap Screw"
    },
    {
      "key": "thread_size",
      "label": "Thread Size",
      "group": "technical",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "1/2-13"
    },
    {
      "key": "thread_series",
      "label": "Thread Series",
      "group": "fit",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Coarse (UNC)"
    },
    {
      "key": "length_under_head",
      "label": "Length (Under Head)",
      "group": "technical",
      "priority": "core",
      "value_type": "number",
      "unit": "in",
      "example_format": "2-1/2 in"
    },
    {
      "key": "head_style",
      "label": "Head Style",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Hex (finished)"
    },
    {
      "key": "material",
      "label": "Material",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Medium Carbon Steel, Quenched and Tempered"
    },
    {
      "key": "grade_property_class",
      "label": "Grade / Property Class",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "SAE J429 Grade 5"
    },
    {
      "key": "finish_coating",
      "label": "Finish / Coating",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Hot-Dip Galvanized"
    },
    {
      "key": "thread_coverage",
      "label": "Thread Coverage",
      "group": "selection",
      "priority": "core",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Partially Threaded"
    },
    {
      "key": "manufacturer_part_number",
      "label": "Manufacturer Part Number",
      "group": "identity",
      "priority": "core",
      "value_type": "identifier",
      "unit": null,
      "example_format": "HCS5-050-250-HDG"
    },
    {
      "key": "thread_length",
      "label": "Thread Length",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "1-1/4 in"
    },
    {
      "key": "width_across_flats",
      "label": "Width Across Flats",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "in",
      "example_format": "3/4 in"
    },
    {
      "key": "minimum_tensile_strength",
      "label": "Minimum Tensile Strength",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "psi",
      "example_format": "120,000 psi"
    },
    {
      "key": "minimum_proof_load_stress",
      "label": "Minimum Proof Load Stress",
      "group": "technical",
      "priority": "differentiating",
      "value_type": "number",
      "unit": "psi",
      "example_format": "85,000 psi"
    },
    {
      "key": "dimensional_standard",
      "label": "Dimensional Standard",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ASME B18.2.1"
    },
    {
      "key": "coating_specification",
      "label": "Coating Specification",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "ASTM F2329"
    },
    {
      "key": "country_of_origin",
      "label": "Country of Origin",
      "group": "evidence",
      "priority": "channel",
      "value_type": "controlled",
      "unit": null,
      "example_format": "Taiwan"
    },
    {
      "key": "gtin_upc",
      "label": "GTIN / UPC",
      "group": "identity",
      "priority": "channel",
      "value_type": "identifier",
      "unit": null,
      "example_format": "10614141200013"
    }
  ],
  "evidence_columns": [
    "raw_value",
    "normalized_value",
    "source_uri",
    "source_page_or_row",
    "confidence",
    "review_state",
    "last_verified"
  ],
  "normalization_examples": [
    {
      "attribute": "Finish / Coating",
      "variants": [
        "HDG",
        "Hot Dip Galv",
        "HOT-DIPPED GALVANISED",
        "HD Galv",
        "Hot Dipped Zinc",
        "Galv HD"
      ],
      "normalized": "Hot-Dip Galvanized"
    },
    {
      "attribute": "Grade / Property Class",
      "variants": [
        "G8",
        "Gr. 8",
        "Grade8",
        "SAE 8",
        "GR8",
        "Gr 8 Steel"
      ],
      "normalized": "SAE J429 Grade 8"
    },
    {
      "attribute": "Thread Size (Metric)",
      "variants": [
        "M12x1.75",
        "M12 X 1.75",
        "M12-1,75",
        "M12 x 1,75",
        "M12 (1.75)"
      ],
      "normalized": "M12-1.75"
    }
  ]
}