{
  "summary": "In the United States tariff, line 7315.81.00.00 covers other chain, stud link. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 7315.81 in heading 73.15 (chapter 73).",
  "updatedAt": "2026-10-09",
  "facts": [
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      "label": "Tariff line",
      "value": "7315.81.00.00",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
    },
    {
      "label": "Covers",
      "value": "Other chain, stud link",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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    {
      "label": "Duty (MFN)",
      "value": "Free",
      "source": "https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false"
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    {
      "label": "Additional duties",
      "value": "None recorded",
      "source": null
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    {
      "label": "Restrictions",
      "value": "None recorded",
      "source": null
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    {
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      "question": "What does tariff line 7315.81.00.00 cover in the United States tariff?",
      "answer": "In the United States tariff, line 7315.81.00.00 covers other chain, stud link."
    },
    {
      "question": "What is the general (MFN) duty on 7315.81.00.00 in the United States?",
      "answer": "Goods under this line enter free of general (MFN) duty."
    }
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  "sections": [
    {
      "id": "covers",
      "title": "What this line covers",
      "text": [
        "In the United States tariff, line 7315.81.00.00 covers other chain, stud link.",
        "Its legal text is “Stud link”, read under “Other chain”."
      ]
    },
    {
      "id": "structure",
      "title": "How it is structured",
      "text": [
        "It falls under HS subheading 7315.81 in heading 73.15 (chapter 73). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff."
      ]
    },
    {
      "id": "duty",
      "title": "Duty",
      "text": [
        "Goods under this line enter free of general (MFN) duty."
      ]
    },
    {
      "id": "other-countries",
      "title": "In other countries",
      "text": [
        "No other national tariff on border.bot has live lines under 7315.81 yet."
      ]
    },
    {
      "id": "sources",
      "title": "Sources and updates",
      "text": [
        "The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.",
        "This page was last updated on 9 October 2026.",
        "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling."
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    "dateModified": "2026-10-09T21:15:58.040Z",
    "chapter": {
      "code": "73",
      "description": "Articles of iron or steel"
    },
    "heading": {
      "code": "7315",
      "description": "Chain and parts thereof, of iron or steel"
    },
    "subheading": {
      "code": "731581",
      "description": "Other chain: Stud-link"
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    "line": {
      "code": "7315810000",
      "description": "Stud link",
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      "keywords": [],
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        "code": "7315810000",
        "dutyText": "Free",
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      "measures": [],
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    "siblingsTotal": 0,
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      "description": "Over 8 mm in diameter",
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  "code": "7315810000",
  "attribution": "border.bot tariff reference (border.bot), compiled from the official publishers named on each page.",
  "terms": "https://border.bot/legal/terms",
  "notice": "Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.",
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