{
  "code": "21.040.20",
  "fieldcode": "21",
  "description": "Inch screw threads",
  "groupcode": "040",
  "subgroupcode": "20",
  "@context": "https://isoics.org/ics/ns/subgroup.jsonld",
  "descriptionFull": "Mechanical systems and components for general use. Screw threads. Inch screw threads.",
  "notes": [
    {
      "text": "Including Whitworth screw threads"
    },
    {
      "text": "Special screw threads, see {ics-code}",
      "ics-code": "21.040.30"
    }
  ]
}