{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "music-wire-sizes",
 "name": "Music wire diameters (ASTM A228): .015 to .250 in",
 "kind": "standard",
 "category": "Hardware",
 "group": "Materials & stock",
 "year": null,
 "question": "What diameters does music wire come in, in mm?",
 "tags": [
  "music wire",
  "piano wire",
  "spring wire",
  "pushrod",
  "landing gear",
  "rc plane",
  "stock sizes",
  "tool"
 ],
 "aliases": [
  "music wire sizes",
  "music wire diameter mm",
  "piano wire sizes",
  "1/16 music wire mm",
  "3/32 music wire",
  "rc pushrod wire size",
  "landing gear wire diameter"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/music-wire-sizes/",
 "sheet_txt": "https://xemstudio.com/objects/music-wire-sizes/sheet.txt",
 "sheet": {
  "basis": "Wire maker's stock list (Gibbs Wire, ASTM A228 music spring wire); mm are exact conversions at 25.4 mm/in",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Music wire (ASTM A228 spring wire) is sold by decimal-inch diameter. The table lists diameters from .015 to .250 in that appear in a wire maker's stock list, with the exact mm value; the fractional name is given where the decimal is that fraction.",
   "The maker stocks many more diameters, 0.0090 to 0.2830 in; the table is a selection, not the whole list.",
   "Diameter tolerances are set by ASTM A228 (not reproduced here).",
   "No file: a wire is a plain cylinder; use the diameter for pushrod bends, landing-gear sockets, hinge pins and Z-bend holes."
  ],
  "table": {
   "columns": [
    "diameter",
    "fraction",
    "mm"
   ],
   "rows": [
    [
     ".015 in",
     "—",
     "0.381"
    ],
    [
     ".020 in",
     "—",
     "0.508"
    ],
    [
     ".025 in",
     "—",
     "0.635"
    ],
    [
     ".032 in",
     "—",
     "0.813"
    ],
    [
     ".039 in",
     "—",
     "0.991"
    ],
    [
     ".047 in",
     "3/64",
     "1.194"
    ],
    [
     ".055 in",
     "—",
     "1.397"
    ],
    [
     ".0625 in",
     "1/16",
     "1.587"
    ],
    [
     ".078 in",
     "5/64",
     "1.981"
    ],
    [
     ".094 in",
     "3/32",
     "2.388"
    ],
    [
     ".125 in",
     "1/8",
     "3.175"
    ],
    [
     ".156 in",
     "5/32",
     "3.962"
    ],
    [
     ".187 in",
     "3/16",
     "4.75"
    ],
    [
     ".250 in",
     "1/4",
     "6.35"
    ]
   ]
  }
 },
 "sheet_text": "Music wire diameters (ASTM A228): .015 to .250 in — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/music-wire-sizes/  (sheet CC BY 4.0)\nBasis: Wire maker's stock list (Gibbs Wire, ASTM A228 music spring wire); mm are exact conversions at 25.4 mm/in\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Music wire (ASTM A228 spring wire) is sold by decimal-inch diameter. The table lists diameters from .015 to .250 in that appear in a wire maker's stock list, with the exact mm value; the fractional name is given where the decimal is that fraction.\n- The maker stocks many more diameters, 0.0090 to 0.2830 in; the table is a selection, not the whole list.\n- Diameter tolerances are set by ASTM A228 (not reproduced here).\n- No file: a wire is a plain cylinder; use the diameter for pushrod bends, landing-gear sockets, hinge pins and Z-bend holes.\n\ndiameter  fraction  mm\n.015 in  —  0.381\n.020 in  —  0.508\n.025 in  —  0.635\n.032 in  —  0.813\n.039 in  —  0.991\n.047 in  3/64  1.194\n.055 in  —  1.397\n.0625 in  1/16  1.587\n.078 in  5/64  1.981\n.094 in  3/32  2.388\n.125 in  1/8  3.175\n.156 in  5/32  3.962\n.187 in  3/16  4.75\n.250 in  1/4  6.35\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Gibbs Wire & Steel: Phosphate coated music wire (ASTM A228): stocked diameters 0.0090 to 0.2830 in — web — Publisher's page; dimensions are facts — https://www.gibbswire.com/phosphate-coated-music-wire/\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=music-wire-sizes\n",
 "sources": [
  {
   "publisher": "Gibbs Wire & Steel",
   "title": "Phosphate coated music wire (ASTM A228): stocked diameters 0.0090 to 0.2830 in",
   "url": "https://www.gibbswire.com/phosphate-coated-music-wire/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "carbon-fibre-rod-sizes",
  "coat-hanger-and-paper-clip-wire",
  "brass-tube-ks"
 ],
 "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 is 1/16 in music wire in mm?",
   "a": "1.5875 mm (.0625 in)."
  },
  {
   "q": "What is 3/32 in music wire in mm?",
   "a": "2.3876 mm (.094 in listed; 3/32 in is .09375 in)."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/music-wire-sizes/index.md"
}