{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "garden-hose-thread",
 "name": "Garden hose thread (GHT 3/4-11.5 NH) dimensions, hose sizes, BSP G3/4 and Gardena for comparison",
 "kind": "standard",
 "category": "Hardware",
 "group": "Pipe & fittings",
 "year": null,
 "question": "What thread is a garden hose?",
 "tags": [
  "garden hose",
  "hose thread",
  "ght",
  "watering",
  "adapter"
 ],
 "aliases": [
  "garden hose thread size",
  "ght thread",
  "3/4 ght dimensions",
  "hose adapter 3d print",
  "garden hose fitting size"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 3,
 "url": "https://xemstudio.com/objects/garden-hose-thread/",
 "sheet_txt": "https://xemstudio.com/objects/garden-hose-thread/sheet.txt",
 "sheet": {
  "basis": "ASME B1.20.7 table (Machinery's Handbook), Dixon fitting guide; ISO 228 for BSP; Gardena product pages",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "US garden hose: 3/4-11.5 NH (GHT): 11.5 threads per inch (2.209 mm pitch). Male nipple major Ø26.56–26.99, pitch Ø25.34–25.55, minor ≤24.12 mm. Female coupling major ≥27.24, minor 24.37–24.80.",
   "It is NOT pipe thread: 3/4 in NPT (14 TPI, tapered) and BSP G3/4 (14 TPI, Ø26.44 major) look close and cross-thread; GHT seals on the washer, not the threads.",
   "Hose sizes are inside diameters: 1/2, 5/8 (a Flexzilla 5/8 is 15.7 mm ID), 3/4 in; ODs are not published.",
   "Europe: taps are G3/4 (Gardena '26.5 mm'), G5/8 ('23 mm') and G1/2 ('21 mm'); Gardena click-coupling geometry is not published.",
   "Printed GHT parts (free STL): male thread drawn slightly under (major 26.6, minor 24.1) so it threads into real couplings; use the rubber washer to seal, PETG or ASA outdoors."
  ],
  "table": {
   "columns": [
    "thread",
    "TPI",
    "pitch_mm",
    "major_mm",
    "minor_mm"
   ],
   "rows": [
    [
     "GHT 3/4-11.5 NH male",
     11.5,
     2.209,
     "26.56–26.99",
     "≤24.12"
    ],
    [
     "GHT female coupling",
     11.5,
     2.209,
     "≥27.24",
     "24.37–24.80"
    ],
    [
     "BSP G3/4 (ISO 228)",
     14,
     1.814,
     26.441,
     24.117
    ]
   ]
  }
 },
 "sheet_text": "Garden hose thread (GHT 3/4-11.5 NH) dimensions, hose sizes, BSP G3/4 and Gardena for comparison — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/garden-hose-thread/  (CC BY 4.0)\nBasis: ASME B1.20.7 table (Machinery's Handbook), Dixon fitting guide; ISO 228 for BSP; Gardena product pages\nCatalog version: 2026-10-20\n\nSizes: see table below\n- US garden hose: 3/4-11.5 NH (GHT): 11.5 threads per inch (2.209 mm pitch). Male nipple major Ø26.56–26.99, pitch Ø25.34–25.55, minor ≤24.12 mm. Female coupling major ≥27.24, minor 24.37–24.80.\n- It is NOT pipe thread: 3/4 in NPT (14 TPI, tapered) and BSP G3/4 (14 TPI, Ø26.44 major) look close and cross-thread; GHT seals on the washer, not the threads.\n- Hose sizes are inside diameters: 1/2, 5/8 (a Flexzilla 5/8 is 15.7 mm ID), 3/4 in; ODs are not published.\n- Europe: taps are G3/4 (Gardena '26.5 mm'), G5/8 ('23 mm') and G1/2 ('21 mm'); Gardena click-coupling geometry is not published.\n- Printed GHT parts (free STL): male thread drawn slightly under (major 26.6, minor 24.1) so it threads into real couplings; use the rubber washer to seal, PETG or ASA outdoors.\n\nthread  TPI  pitch_mm  major_mm  minor_mm\nGHT 3/4-11.5 NH male  11.5  2.209  26.56–26.99  ≤24.12\nGHT female coupling  11.5  2.209  ≥27.24  24.37–24.80\nBSP G3/4 (ISO 228)  14  1.814  26.441  24.117\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Machinery's Handbook (ASME B1.20.7 table): Hose coupling screw threads — web — Publisher's page; dimensions are facts — https://online.flippingbook.com/view/954046886/744-745/\n- Dixon Valve: Thread identification guide — web — Publisher's page; dimensions are facts — https://canada.dixonvalve.com/en/media/1409739\n- PRESSOL: Whitworth pipe thread ISO 228 (G3/4) — web — Publisher's page; dimensions are facts — https://www.pressol.com/informationen/spezifikationsdokumente-gewinde/zylindrisches-whitworth-rohrgewinde-nach-diniso-228/?lang=en\n- Gardena: Tap connector thread sizes — web — Publisher's page; dimensions are facts — https://www.gardena.com/za/products/watering/hose-fittings/tap-connector/970565601.html\n- Alaska Rubber Group (spec): Flexzilla 5/8 in hose — web — Publisher's page; dimensions are facts — https://www.alaskarubbergroup.com/flexzilla-hfzg550yw-green-polymer-garden-hose-5/8-in-50-ft-l-150-psi\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/garden-hose-thread/index.json\nAPI: https://xemstudio.com/api/geometry?object=garden-hose-thread\n",
 "sources": [
  {
   "publisher": "Machinery's Handbook (ASME B1.20.7 table)",
   "title": "Hose coupling screw threads",
   "url": "https://online.flippingbook.com/view/954046886/744-745/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Dixon Valve",
   "title": "Thread identification guide",
   "url": "https://canada.dixonvalve.com/en/media/1409739",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "PRESSOL",
   "title": "Whitworth pipe thread ISO 228 (G3/4)",
   "url": "https://www.pressol.com/informationen/spezifikationsdokumente-gewinde/zylindrisches-whitworth-rohrgewinde-nach-diniso-228/?lang=en",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Gardena",
   "title": "Tap connector thread sizes",
   "url": "https://www.gardena.com/za/products/watering/hose-fittings/tap-connector/970565601.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Alaska Rubber Group (spec)",
   "title": "Flexzilla 5/8 in hose",
   "url": "https://www.alaskarubbergroup.com/flexzilla-hfzg550yw-green-polymer-garden-hose-5/8-in-50-ft-l-150-psi",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
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  "status": "free-files",
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  "tolerance_mm": null
 },
 "related": [
  "e-track-and-l-track",
  "broom-and-tool-handles"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "What size thread is a garden hose?",
   "a": "3/4-11.5 NH (GHT): 11.5 threads per inch, about 26.8 mm across the male thread. It is not 3/4 NPT."
  }
 ],
 "files_license": null,
 "offers": [
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   "file": "ght-male-nipple-12mm",
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    "stl"
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   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/garden-hose-thread/ght-male-nipple-12mm.step",
   "stl": "https://xemstudio.com/files/hardware/garden-hose-thread/ght-male-nipple-12mm.stl",
   "note": "3/4-11.5 GHT male nipple, 12 mm of thread, hex grip, Ø13 bore"
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   "stl": "https://xemstudio.com/files/hardware/garden-hose-thread/ght-male-to-13mm-tube.stl",
   "note": "3/4-11.5 GHT male to a Ø13 socket (1/2 in tubing / drip line)"
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   "file": "ght-male-to-16mm-tube",
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   "step": "https://xemstudio.com/files/hardware/garden-hose-thread/ght-male-to-16mm-tube.step",
   "stl": "https://xemstudio.com/files/hardware/garden-hose-thread/ght-male-to-16mm-tube.stl",
   "note": "3/4-11.5 GHT male to a Ø16 socket (5/8 in hose barb sleeve)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/garden-hose-thread/index.md"
}