{
 "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": "bungee-shock-cord-diameters-and-hooks",
 "name": "Bungee / shock cord diameters (1/8 to 5/8 in) and the hook sizes that go with them",
 "kind": "standard",
 "category": "Hardware",
 "group": "Materials & stock",
 "year": null,
 "question": "What diameters does bungee (shock) cord come in, and what size hook goes with each?",
 "tags": [
  "bungee",
  "shock cord",
  "elastic cord",
  "bungee hook",
  "cordage",
  "stretch cord",
  "mil-c-5651",
  "tool"
 ],
 "aliases": [
  "bungee cord sizes",
  "shock cord diameters",
  "bungee cord diameter 3/8",
  "bungee hook size for 1/4 cord",
  "shock cord 1/8",
  "5/16 shock cord hook",
  "bungee cord 1/2 inch",
  "mil-c-5651 shock cord",
  "bungee cord thickness mm",
  "bungee hooks 3/8",
  "elastic shock cord sizes",
  "what size hook for 3/16 shock cord"
 ],
 "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/bungee-shock-cord-diameters-and-hooks/",
 "sheet_txt": "https://xemstudio.com/objects/bungee-shock-cord-diameters-and-hooks/sheet.txt",
 "sheet": {
  "basis": "Aircraft Spruce shock cord list, Albright's Supply cord and coil-hook sizes, Paracord Planet hook set; numbers only; hook / cord pairing as each shop lists it",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Shock (bungee) cord is elastic cord: rubber strands inside a braided cover, sold by nominal diameter. Aircraft Spruce's shock cord is cotton-covered natural rubber to MIL-C-5651D Type I in the 'certifiable' sizes 1/4, 3/8, 1/2, 5/8 in, plus 1/8 and 5/16 in; Albright's lists 1/8, 3/16, 1/4, 5/16 and 3/8 in. The two lists agree on 1/8, 1/4, 5/16, 3/8; 3/16 is only on Albright's and 1/2, 5/8 only on Aircraft Spruce. Diameters are nominal and no diameter tolerance is printed.",
   "Hooks: the two shops that pair hooks with a cord do not agree on every size. Paracord Planet's 10-piece wire hook set pairs a 1/4 in hook with 3/16 cord, a 5/16 in hook with 5/16 cord, a 3/8 in hook with 5/16 cord, a 1/2 in hook with 1/2 cord. Albright's metal coil hooks are 1/4 x 2-7/8 (for 1/4 in cord), 3/8 x 2-7/8 (for 3/8 cord) and 1/2 x 2-7/8 (for 1/2 cord), and one plastic adjustable hook is listed for 3/16, 1/4 and 5/16 cord. So the 1/4 in hook fits 1/4 in cord at Albright's but 3/16 in cord at Paracord Planet, and the 3/8 in hook is for 3/8 cord at Albright's but for 5/16 cord at Paracord Planet: both are shown, and the hook size is a trade size, not a measured hole. Aircraft Spruce sells shock-cord fasteners separately in 1/4 and 3/8 in.",
   "No hook dimension other than Albright's 2-7/8 in coil-hook length is printed in any source read (wire gauge, opening and throat are not given), so no hook drawing exists. The hook / cord pairing is the only mating data.",
   "Bungee cord with hooks as ready-made 'bungee cords' (lengths 10 to 48 in, hook coating) was not tabulated: no length table with a source was read.",
   "Rope: double-braid-rope-polyester-nylon-diameters. Paracord: paracord-types-mil-c-5040. Rubber O-ring cord: o-ring-cord-stock-sizes."
  ],
  "table": {
   "columns": [
    "source",
    "cord diameter (in)",
    "mm",
    "spec / type",
    "hook paired with it",
    "note"
   ],
   "rows": [
    [
     "Aircraft Spruce shock cord",
     "1/8 in",
     "3.17",
     "type not stated",
     "—",
     "PN 06-12100"
    ],
    [
     "Aircraft Spruce shock cord",
     "3/16 in",
     "—",
     "—",
     "—",
     "not listed"
    ],
    [
     "Aircraft Spruce shock cord",
     "1/4 in",
     "6.35",
     "MIL-C-5651D Type I (certifiable size)",
     "—",
     "PN 06-12200; fastener for 1/4 in is PN 06-12800, sold separately"
    ],
    [
     "Aircraft Spruce shock cord",
     "5/16 in",
     "7.94",
     "Type III (spec not given)",
     "—",
     "PN 06-12300"
    ],
    [
     "Aircraft Spruce shock cord",
     "3/8 in",
     "9.52",
     "MIL-C-5651D Type I (certifiable size)",
     "—",
     "PN 06-12400; fastener for 3/8 in is PN 06-12900, sold separately"
    ],
    [
     "Aircraft Spruce shock cord",
     "1/2 in",
     "12.70",
     "MIL-C-5651D Type I (certifiable size)",
     "—",
     "PN 06-12500"
    ],
    [
     "Aircraft Spruce shock cord",
     "5/8 in",
     "15.88",
     "MIL-C-5651D Type I (certifiable size)",
     "—",
     "PN 06-12600"
    ],
    [
     "Albright's Supply bungee / shock cord",
     "1/8 in",
     "3.17",
     "—",
     "—",
     "listed"
    ],
    [
     "Albright's Supply bungee / shock cord",
     "3/16 in",
     "4.76",
     "—",
     "plastic adjustable hook (one size, fits 3/16, 1/4, 5/16)",
     "listed"
    ],
    [
     "Albright's Supply bungee / shock cord",
     "1/4 in",
     "6.35",
     "—",
     "metal coil hook 1/4 x 2-7/8 in",
     "listed"
    ],
    [
     "Albright's Supply bungee / shock cord",
     "5/16 in",
     "7.94",
     "—",
     "plastic adjustable hook (see above)",
     "listed"
    ],
    [
     "Albright's Supply bungee / shock cord",
     "3/8 in",
     "9.52",
     "—",
     "metal coil hook 3/8 x 2-7/8 in",
     "listed"
    ],
    [
     "Albright's Supply (hook only)",
     "1/2 in",
     "12.70",
     "—",
     "metal coil hook 1/2 x 2-7/8 in (cord diameter not on the cord list)",
     "hook listed for 1/2 in cord"
    ],
    [
     "Paracord Planet wire hooks, 10 pc",
     "3/16 in cord",
     "4.76",
     "—",
     "1/4 in wire hook",
     "hook listed as fitting"
    ],
    [
     "Paracord Planet wire hooks, 10 pc",
     "5/16 in cord",
     "7.94",
     "—",
     "5/16 in wire hook",
     "hook listed as fitting"
    ],
    [
     "Paracord Planet wire hooks, 10 pc",
     "5/16 in cord",
     "7.94",
     "—",
     "3/8 in wire hook (a reviewer says it is not large enough for 3/8 cord)",
     "hook listed as fitting"
    ],
    [
     "Paracord Planet wire hooks, 10 pc",
     "1/2 in cord",
     "12.70",
     "—",
     "1/2 in wire hook",
     "hook listed as fitting"
    ]
   ]
  }
 },
 "sheet_text": "Bungee / shock cord diameters (1/8 to 5/8 in) and the hook sizes that go with them — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/bungee-shock-cord-diameters-and-hooks/  (sheet CC BY 4.0)\nBasis: Aircraft Spruce shock cord list, Albright's Supply cord and coil-hook sizes, Paracord Planet hook set; numbers only; hook / cord pairing as each shop lists it\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Shock (bungee) cord is elastic cord: rubber strands inside a braided cover, sold by nominal diameter. Aircraft Spruce's shock cord is cotton-covered natural rubber to MIL-C-5651D Type I in the 'certifiable' sizes 1/4, 3/8, 1/2, 5/8 in, plus 1/8 and 5/16 in; Albright's lists 1/8, 3/16, 1/4, 5/16 and 3/8 in. The two lists agree on 1/8, 1/4, 5/16, 3/8; 3/16 is only on Albright's and 1/2, 5/8 only on Aircraft Spruce. Diameters are nominal and no diameter tolerance is printed.\n- Hooks: the two shops that pair hooks with a cord do not agree on every size. Paracord Planet's 10-piece wire hook set pairs a 1/4 in hook with 3/16 cord, a 5/16 in hook with 5/16 cord, a 3/8 in hook with 5/16 cord, a 1/2 in hook with 1/2 cord. Albright's metal coil hooks are 1/4 x 2-7/8 (for 1/4 in cord), 3/8 x 2-7/8 (for 3/8 cord) and 1/2 x 2-7/8 (for 1/2 cord), and one plastic adjustable hook is listed for 3/16, 1/4 and 5/16 cord. So the 1/4 in hook fits 1/4 in cord at Albright's but 3/16 in cord at Paracord Planet, and the 3/8 in hook is for 3/8 cord at Albright's but for 5/16 cord at Paracord Planet: both are shown, and the hook size is a trade size, not a measured hole. Aircraft Spruce sells shock-cord fasteners separately in 1/4 and 3/8 in.\n- No hook dimension other than Albright's 2-7/8 in coil-hook length is printed in any source read (wire gauge, opening and throat are not given), so no hook drawing exists. The hook / cord pairing is the only mating data.\n- Bungee cord with hooks as ready-made 'bungee cords' (lengths 10 to 48 in, hook coating) was not tabulated: no length table with a source was read.\n- Rope: double-braid-rope-polyester-nylon-diameters. Paracord: paracord-types-mil-c-5040. Rubber O-ring cord: o-ring-cord-stock-sizes.\n\nsource  cord diameter (in)  mm  spec / type  hook paired with it  note\nAircraft Spruce shock cord  1/8 in  3.17  type not stated  —  PN 06-12100\nAircraft Spruce shock cord  3/16 in  —  —  —  not listed\nAircraft Spruce shock cord  1/4 in  6.35  MIL-C-5651D Type I (certifiable size)  —  PN 06-12200; fastener for 1/4 in is PN 06-12800, sold separately\nAircraft Spruce shock cord  5/16 in  7.94  Type III (spec not given)  —  PN 06-12300\nAircraft Spruce shock cord  3/8 in  9.52  MIL-C-5651D Type I (certifiable size)  —  PN 06-12400; fastener for 3/8 in is PN 06-12900, sold separately\nAircraft Spruce shock cord  1/2 in  12.70  MIL-C-5651D Type I (certifiable size)  —  PN 06-12500\nAircraft Spruce shock cord  5/8 in  15.88  MIL-C-5651D Type I (certifiable size)  —  PN 06-12600\nAlbright's Supply bungee / shock cord  1/8 in  3.17  —  —  listed\nAlbright's Supply bungee / shock cord  3/16 in  4.76  —  plastic adjustable hook (one size, fits 3/16, 1/4, 5/16)  listed\nAlbright's Supply bungee / shock cord  1/4 in  6.35  —  metal coil hook 1/4 x 2-7/8 in  listed\nAlbright's Supply bungee / shock cord  5/16 in  7.94  —  plastic adjustable hook (see above)  listed\nAlbright's Supply bungee / shock cord  3/8 in  9.52  —  metal coil hook 3/8 x 2-7/8 in  listed\nAlbright's Supply (hook only)  1/2 in  12.70  —  metal coil hook 1/2 x 2-7/8 in (cord diameter not on the cord list)  hook listed for 1/2 in cord\nParacord Planet wire hooks, 10 pc  3/16 in cord  4.76  —  1/4 in wire hook  hook listed as fitting\nParacord Planet wire hooks, 10 pc  5/16 in cord  7.94  —  5/16 in wire hook  hook listed as fitting\nParacord Planet wire hooks, 10 pc  5/16 in cord  7.94  —  3/8 in wire hook (a reviewer says it is not large enough for 3/8 cord)  hook listed as fitting\nParacord Planet wire hooks, 10 pc  1/2 in cord  12.70  —  1/2 in wire hook  hook listed as fitting\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Aircraft Spruce: Shock cord 1/8, 1/4, 5/16, 3/8, 1/2, 5/8 in; MIL-C-5651D Type I; certifiable sizes 1/4, 3/8, 1/2, 5/8 — web — Publisher's page; dimensions are facts — https://www.aircraftspruce.ca/catalog/lgpages/shockcord.php\n- Albright's Supply: Bungee / shock cord 1/8, 3/16, 1/4, 5/16, 3/8 in and metal coil hooks 1/4, 3/8, 1/2 x 2-7/8 in, plastic adjustable hook — web — Publisher's page; dimensions are facts — https://www.albrightssupply.com/bungee-shock-cord\n- Paracord Planet: Wire shock cord hooks, 10 pieces: 1/4 in hook for 3/16 cord, 5/16 for 5/16, 3/8 for 5/16, 1/2 for 1/2 — web — Publisher's page; dimensions are facts — https://www.paracordplanet.com/wire-shock-cord-hooks-10-pcs\n- McMaster-Carr: Bungee cord hooks (free STEP/IGES per part, for your own design use; no redistribution) — STEP, IGES, PDF — McMaster-Carr site terms: personal design use, no redistribution [verify license at link] — https://www.mcmaster.com/products/bungee-cord-hooks/\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=bungee-shock-cord-diameters-and-hooks\n",
 "sources": [
  {
   "publisher": "Aircraft Spruce",
   "title": "Shock cord 1/8, 1/4, 5/16, 3/8, 1/2, 5/8 in; MIL-C-5651D Type I; certifiable sizes 1/4, 3/8, 1/2, 5/8",
   "url": "https://www.aircraftspruce.ca/catalog/lgpages/shockcord.php",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Albright's Supply",
   "title": "Bungee / shock cord 1/8, 3/16, 1/4, 5/16, 3/8 in and metal coil hooks 1/4, 3/8, 1/2 x 2-7/8 in, plastic adjustable hook",
   "url": "https://www.albrightssupply.com/bungee-shock-cord",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Paracord Planet",
   "title": "Wire shock cord hooks, 10 pieces: 1/4 in hook for 3/16 cord, 5/16 for 5/16, 3/8 for 5/16, 1/2 for 1/2",
   "url": "https://www.paracordplanet.com/wire-shock-cord-hooks-10-pcs",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "McMaster-Carr",
   "title": "Bungee cord hooks (free STEP/IGES per part, for your own design use; no redistribution)",
   "url": "https://www.mcmaster.com/products/bungee-cord-hooks/",
   "formats": [
    "STEP",
    "IGES",
    "PDF"
   ],
   "license": "McMaster-Carr site terms: personal design use, no redistribution",
   "license_verified": false,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "paracord-types-mil-c-5040",
  "double-braid-rope-polyester-nylon-diameters",
  "o-ring-cord-stock-sizes",
  "wire-rope-clips-crosby-g450-g429",
  "rubber-grommets-panel-hole"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no tolerance added)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no tolerance added. 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. Typical accuracy by process and ISO 286 fits: https://xemstudio.com/tolerances/",
 "mating": [
  {
   "feature": "cord diameter 3/16 in",
   "exact": "3/16 in (4.76 mm)",
   "mates": "1/4 in wire hook (Paracord Planet 10-piece set) or Albright's plastic adjustable hook",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cord diameter 1/4 in",
   "exact": "1/4 in (6.35 mm)",
   "mates": "1/4 x 2-7/8 in metal coil hook (Albright's); Aircraft Spruce 1/4 in shock-cord fastener PN 06-12800",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cord diameter 5/16 in",
   "exact": "5/16 in (7.94 mm)",
   "mates": "5/16 in or 3/8 in wire hook (Paracord Planet), plastic adjustable hook (Albright's)",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cord diameter 3/8 in",
   "exact": "3/8 in (9.52 mm)",
   "mates": "3/8 x 2-7/8 in metal coil hook (Albright's); Aircraft Spruce 3/8 in fastener PN 06-12900",
   "fit": "designed",
   "files": "all"
  },
  {
   "feature": "cord diameter 1/2 in",
   "exact": "1/2 in (12.7 mm)",
   "mates": "1/2 in wire hook (Paracord Planet) or 1/2 x 2-7/8 in metal coil hook (Albright's)",
   "fit": "designed",
   "files": "all"
  }
 ],
 "fit_classes": {
  "press": "stays put: pin, tube, bearing or magnet held by interference. ISO 286 equivalent: H7/p6 (locational interference) or tighter.",
  "slide": "assembles by hand and is held by a grub, pinch or clamp: shaft in a hub, rod in a socket, spigot in a bore. ISO 286 equivalent: H7/g6 or H7/h6.",
  "run": "turns or slides in use: pin in a link, rod through a guide. ISO 286 equivalent: H8/f7 (close running).",
  "socket": "large sliding fit: syringe barrel, sleeve, bobbin in a bore. ISO 286 equivalent: H9/d9 (free running) or looser.",
  "clamp": "split part that closes on the mating part with screws: make it at size.",
  "designed": "a gap that is part of the design (piston fit option, displacer gap, air gap): do not change."
 },
 "faq": [
  {
   "q": "What diameters does shock cord come in?",
   "a": "1/8, 3/16, 1/4, 5/16, 3/8, 1/2 and 5/8 in across Aircraft Spruce and Albright's; MIL-C-5651D Type I certifiable sizes are 1/4, 3/8, 1/2, 5/8 in."
  },
  {
   "q": "What hook goes on 1/4 inch shock cord?",
   "a": "Albright's lists a 1/4 x 2-7/8 in metal coil hook for 1/4 in cord; Paracord Planet pairs its 1/4 in hook with 3/16 in cord."
  },
  {
   "q": "What hook goes on 5/16 inch shock cord?",
   "a": "Paracord Planet pairs both its 5/16 in and 3/8 in hooks with 5/16 in cord; Albright's plastic adjustable hook also fits 5/16 in."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/bungee-shock-cord-diameters-and-hooks/index.md"
}