{
 "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": "threaded-inserts-for-wood-e-z-lok",
 "name": "Threaded inserts for wood: E-Z Lok knife-thread (brass, stainless) and hex-drive flanged / flush inserts — thread, length, drill size",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What drill bit for a 1/4-20 threaded insert in wood, and how long are E-Z Lok knife-thread and hex-drive inserts?",
 "tags": [
  "threaded insert",
  "wood insert",
  "knife thread insert",
  "e-z lok",
  "hex drive insert",
  "furniture insert",
  "t-nut alternative",
  "brass insert for wood",
  "threaded insert for mdf",
  "tool"
 ],
 "aliases": [
  "threaded insert for wood drill size",
  "1/4-20 threaded insert wood drill bit",
  "e-z lok 400-4 drill size",
  "e-z lok drill size chart",
  "10-24 threaded insert wood hole size",
  "5/16-18 wood insert drill",
  "knife thread insert drill size",
  "e-z hex flanged insert drill size",
  "m6 threaded insert for wood hole size",
  "e-z lok 3/8-16 insert hole",
  "threaded insert length 1/4-20 wood"
 ],
 "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/threaded-inserts-for-wood-e-z-lok/",
 "sheet_txt": "https://xemstudio.com/objects/threaded-inserts-for-wood-e-z-lok/sheet.txt",
 "sheet": {
  "basis": "E-Z LOK 2026 and 2023 brochures (inch and metric tables), the E-Z Hex M10 product page and one distributor listing; numbers only",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Rows are E-Z LOK part numbers as the brochures print them: the internal thread, the length, the single drill size the maker gives for that insert (the mm column is the fraction converted, × 25.4, computed) and, for hex-drive inserts, the hex drive size. The knife-thread (400 series) inserts are solid brass or stainless steel with an external knife thread, for hard and soft wood and particle board; the hex-drive inserts (flanged type D, flush type E) are die-cast zinc for soft wood, pine, MDF, plywood and composition board.",
   "The brochures give one drill size per insert, not separate softwood and hardwood sizes, and no outside diameter, so neither is shown. The knife-thread tables in the 2026 and 2023 brochures agree row for row; the hex-drive tables are from the 2023 brochure only. A product-page CAD link for the M10 flanged insert (901050-13) names a 12 mm / 15/32 in hole, which agrees with the brochure's 15/32 in; the product page itself lists no outside diameter. Albany County Fasteners lists the 1/4-20 × 0.500 in knife-thread insert (400-4) as solid brass but, like the brochure, gives no outside diameter.",
   "One printed inconsistency is kept: the 2023 brochure shows 'M8' as the hex drive size for the 900610-20 insert (M6-1.0 × 20 mm), while the other M6 rows show M6; the drill size 23/64 in is the same as the other M6 rows. The stainless knife-thread inserts use the same sizes as brass with a -CR suffix; the brass-only sizes 400-475, 400-510 and 400-610 have no stainless row in the brochure.",
   "Not on this page: other makers' wood inserts (Rampa and similar) because no table with dimensions could be read for them; the outside and thread-form dimensions of the E-Z Lok parts; pull-out ratings, which depend on the wood. For plastic and for metal sheet: heat-set-inserts, rivet-nuts-flat-head. For thread repair in metal: helical-thread-inserts-din-8140. No file: the external knife thread and hex socket are not defined by numbers in the sheets read. E-Z LOK's product pages carry a CAD link per part; it is linked, not copied."
  ],
  "table": {
   "columns": [
    "type",
    "part number",
    "internal thread",
    "length",
    "drill size",
    "hex drive",
    "note"
   ],
   "rows": [
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-004",
     "4-40",
     "0.375 in (9.52 mm)",
     "17/64 in (6.75 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-006",
     "6-32",
     "0.375 in (9.52 mm)",
     "17/64 in (6.75 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-008",
     "8-32",
     "0.375 in (9.52 mm)",
     "17/64 in (6.75 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-3",
     "10-24",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-332",
     "10-32",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-4",
     "1/4-20",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-428",
     "1/4-28",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-475",
     "1/4-20",
     "0.750 in (19.05 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-5",
     "5/16-18",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-510",
     "5/16-18",
     "1.000 in (25.40 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-524",
     "5/16-24",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-6",
     "3/8-16",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-610",
     "3/8-16",
     "1.000 in (25.40 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass (hard and soft wood), inch",
     "400-624",
     "3/8-24",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M3",
     "M3-0.5",
     "0.375 in (9.52 mm)",
     "17/64 in (6.75 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M4",
     "M4-0.7",
     "0.375 in (9.52 mm)",
     "17/64 in (6.75 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M5",
     "M5-0.8",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M6",
     "M6-1.0",
     "0.500 in (12.70 mm)",
     "25/64 in (9.92 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M8",
     "M8-1.25",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "knife thread, brass, metric",
     "400-M10",
     "M10-1.5",
     "0.625 in (15.88 mm)",
     "33/64 in (13.10 mm)",
     "—",
     "same sizes also as stainless (-CR suffix)"
    ],
    [
     "hex drive, flanged, soft wood",
     "900832-10",
     "8-32",
     "10 mm (0.39 in)",
     "15/64 in (5.95 mm)",
     "M4",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901024-10",
     "10-24",
     "10 mm (0.39 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901024-13",
     "10-24",
     "13 mm (0.51 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901024-20",
     "10-24",
     "20 mm (0.79 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901032-10",
     "10-32",
     "10 mm (0.39 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901032-13",
     "10-32",
     "13 mm (0.51 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901032-20",
     "10-32",
     "20 mm (0.79 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901420-10",
     "1/4-20",
     "10 mm (0.39 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901420-13",
     "1/4-20",
     "13 mm (0.51 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901420-20",
     "1/4-20",
     "20 mm (0.79 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "901420-25",
     "1/4-20",
     "25 mm (0.98 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "951618-13",
     "5/16-18",
     "13 mm (0.51 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "951618-20",
     "5/16-18",
     "20 mm (0.79 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "951618-25",
     "5/16-18",
     "25 mm (0.98 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "903816-13",
     "3/8-16",
     "13 mm (0.51 in)",
     "15/32 in (11.91 mm)",
     "M10",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "903816-20",
     "3/8-16",
     "20 mm (0.79 in)",
     "15/32 in (11.91 mm)",
     "M10",
     "—"
    ],
    [
     "hex drive, flanged, soft wood",
     "903816-25",
     "3/8-16",
     "25 mm (0.98 in)",
     "15/32 in (11.91 mm)",
     "M10",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "800832-10",
     "8-32",
     "10 mm (0.39 in)",
     "15/64 in (5.95 mm)",
     "M4",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801024-10",
     "10-24",
     "10 mm (0.39 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801024-13",
     "10-24",
     "13 mm (0.51 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801032-10",
     "10-32",
     "10 mm (0.39 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801032-13",
     "10-32",
     "13 mm (0.51 in)",
     "9/32 in (7.14 mm)",
     "M5",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801420-10",
     "1/4-20",
     "10 mm (0.39 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801420-13",
     "1/4-20",
     "13 mm (0.51 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "801420-20",
     "1/4-20",
     "20 mm (0.79 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "851618-13",
     "5/16-18",
     "13 mm (0.51 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "851618-20",
     "5/16-18",
     "20 mm (0.79 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flush, soft wood",
     "851618-25",
     "5/16-18",
     "25 mm (0.98 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flush, metric, soft wood",
     "800407-10",
     "M4-0.7",
     "10 mm (0.39 in)",
     "15/64 in (5.95 mm)",
     "M4",
     "—"
    ],
    [
     "hex drive, flush, metric, soft wood",
     "800610-13",
     "M6-1.0",
     "13 mm (0.51 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flush, metric, soft wood",
     "800610-20",
     "M6-1.0",
     "20 mm (0.79 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flush, metric, soft wood",
     "808125-13",
     "M8-1.25",
     "13 mm (0.51 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flush, metric, soft wood",
     "808125-20",
     "M8-1.25",
     "20 mm (0.79 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "900407-10",
     "M4-0.7",
     "10 mm (0.39 in)",
     "15/64 in (5.95 mm)",
     "M4",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "900610-13",
     "M6-1.0",
     "13 mm (0.51 in)",
     "23/64 in (9.13 mm)",
     "M6",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "900610-20",
     "M6-1.0",
     "20 mm (0.79 in)",
     "23/64 in (9.13 mm)",
     "M8 (as printed; the M6 rows above show M6)",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "908125-13",
     "M8-1.25",
     "13 mm (0.51 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "908125-20",
     "M8-1.25",
     "20 mm (0.79 in)",
     "7/16 in (11.11 mm)",
     "M8",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "901050-13",
     "M10-1.5",
     "13 mm (0.51 in)",
     "15/32 in (11.91 mm)",
     "M10",
     "—"
    ],
    [
     "hex drive, flanged, metric, soft wood",
     "901050-25",
     "M10-1.5",
     "25 mm (0.98 in)",
     "15/32 in (11.91 mm)",
     "M10",
     "—"
    ]
   ]
  }
 },
 "sheet_text": "Threaded inserts for wood: E-Z Lok knife-thread (brass, stainless) and hex-drive flanged / flush inserts — thread, length, drill size — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/threaded-inserts-for-wood-e-z-lok/  (sheet CC BY 4.0)\nBasis: E-Z LOK 2026 and 2023 brochures (inch and metric tables), the E-Z Hex M10 product page and one distributor listing; numbers only\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Rows are E-Z LOK part numbers as the brochures print them: the internal thread, the length, the single drill size the maker gives for that insert (the mm column is the fraction converted, × 25.4, computed) and, for hex-drive inserts, the hex drive size. The knife-thread (400 series) inserts are solid brass or stainless steel with an external knife thread, for hard and soft wood and particle board; the hex-drive inserts (flanged type D, flush type E) are die-cast zinc for soft wood, pine, MDF, plywood and composition board.\n- The brochures give one drill size per insert, not separate softwood and hardwood sizes, and no outside diameter, so neither is shown. The knife-thread tables in the 2026 and 2023 brochures agree row for row; the hex-drive tables are from the 2023 brochure only. A product-page CAD link for the M10 flanged insert (901050-13) names a 12 mm / 15/32 in hole, which agrees with the brochure's 15/32 in; the product page itself lists no outside diameter. Albany County Fasteners lists the 1/4-20 × 0.500 in knife-thread insert (400-4) as solid brass but, like the brochure, gives no outside diameter.\n- One printed inconsistency is kept: the 2023 brochure shows 'M8' as the hex drive size for the 900610-20 insert (M6-1.0 × 20 mm), while the other M6 rows show M6; the drill size 23/64 in is the same as the other M6 rows. The stainless knife-thread inserts use the same sizes as brass with a -CR suffix; the brass-only sizes 400-475, 400-510 and 400-610 have no stainless row in the brochure.\n- Not on this page: other makers' wood inserts (Rampa and similar) because no table with dimensions could be read for them; the outside and thread-form dimensions of the E-Z Lok parts; pull-out ratings, which depend on the wood. For plastic and for metal sheet: heat-set-inserts, rivet-nuts-flat-head. For thread repair in metal: helical-thread-inserts-din-8140. No file: the external knife thread and hex socket are not defined by numbers in the sheets read. E-Z LOK's product pages carry a CAD link per part; it is linked, not copied.\n\ntype  part number  internal thread  length  drill size  hex drive  note\nknife thread, brass (hard and soft wood), inch  400-004  4-40  0.375 in (9.52 mm)  17/64 in (6.75 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-006  6-32  0.375 in (9.52 mm)  17/64 in (6.75 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-008  8-32  0.375 in (9.52 mm)  17/64 in (6.75 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-3  10-24  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-332  10-32  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-4  1/4-20  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-428  1/4-28  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-475  1/4-20  0.750 in (19.05 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-5  5/16-18  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-510  5/16-18  1.000 in (25.40 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-524  5/16-24  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-6  3/8-16  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-610  3/8-16  1.000 in (25.40 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass (hard and soft wood), inch  400-624  3/8-24  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M3  M3-0.5  0.375 in (9.52 mm)  17/64 in (6.75 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M4  M4-0.7  0.375 in (9.52 mm)  17/64 in (6.75 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M5  M5-0.8  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M6  M6-1.0  0.500 in (12.70 mm)  25/64 in (9.92 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M8  M8-1.25  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nknife thread, brass, metric  400-M10  M10-1.5  0.625 in (15.88 mm)  33/64 in (13.10 mm)  —  same sizes also as stainless (-CR suffix)\nhex drive, flanged, soft wood  900832-10  8-32  10 mm (0.39 in)  15/64 in (5.95 mm)  M4  —\nhex drive, flanged, soft wood  901024-10  10-24  10 mm (0.39 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901024-13  10-24  13 mm (0.51 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901024-20  10-24  20 mm (0.79 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901032-10  10-32  10 mm (0.39 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901032-13  10-32  13 mm (0.51 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901032-20  10-32  20 mm (0.79 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flanged, soft wood  901420-10  1/4-20  10 mm (0.39 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flanged, soft wood  901420-13  1/4-20  13 mm (0.51 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flanged, soft wood  901420-20  1/4-20  20 mm (0.79 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flanged, soft wood  901420-25  1/4-20  25 mm (0.98 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flanged, soft wood  951618-13  5/16-18  13 mm (0.51 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, soft wood  951618-20  5/16-18  20 mm (0.79 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, soft wood  951618-25  5/16-18  25 mm (0.98 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, soft wood  903816-13  3/8-16  13 mm (0.51 in)  15/32 in (11.91 mm)  M10  —\nhex drive, flanged, soft wood  903816-20  3/8-16  20 mm (0.79 in)  15/32 in (11.91 mm)  M10  —\nhex drive, flanged, soft wood  903816-25  3/8-16  25 mm (0.98 in)  15/32 in (11.91 mm)  M10  —\nhex drive, flush, soft wood  800832-10  8-32  10 mm (0.39 in)  15/64 in (5.95 mm)  M4  —\nhex drive, flush, soft wood  801024-10  10-24  10 mm (0.39 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flush, soft wood  801024-13  10-24  13 mm (0.51 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flush, soft wood  801032-10  10-32  10 mm (0.39 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flush, soft wood  801032-13  10-32  13 mm (0.51 in)  9/32 in (7.14 mm)  M5  —\nhex drive, flush, soft wood  801420-10  1/4-20  10 mm (0.39 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flush, soft wood  801420-13  1/4-20  13 mm (0.51 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flush, soft wood  801420-20  1/4-20  20 mm (0.79 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flush, soft wood  851618-13  5/16-18  13 mm (0.51 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flush, soft wood  851618-20  5/16-18  20 mm (0.79 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flush, soft wood  851618-25  5/16-18  25 mm (0.98 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flush, metric, soft wood  800407-10  M4-0.7  10 mm (0.39 in)  15/64 in (5.95 mm)  M4  —\nhex drive, flush, metric, soft wood  800610-13  M6-1.0  13 mm (0.51 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flush, metric, soft wood  800610-20  M6-1.0  20 mm (0.79 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flush, metric, soft wood  808125-13  M8-1.25  13 mm (0.51 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flush, metric, soft wood  808125-20  M8-1.25  20 mm (0.79 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, metric, soft wood  900407-10  M4-0.7  10 mm (0.39 in)  15/64 in (5.95 mm)  M4  —\nhex drive, flanged, metric, soft wood  900610-13  M6-1.0  13 mm (0.51 in)  23/64 in (9.13 mm)  M6  —\nhex drive, flanged, metric, soft wood  900610-20  M6-1.0  20 mm (0.79 in)  23/64 in (9.13 mm)  M8 (as printed; the M6 rows above show M6)  —\nhex drive, flanged, metric, soft wood  908125-13  M8-1.25  13 mm (0.51 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, metric, soft wood  908125-20  M8-1.25  20 mm (0.79 in)  7/16 in (11.11 mm)  M8  —\nhex drive, flanged, metric, soft wood  901050-13  M10-1.5  13 mm (0.51 in)  15/32 in (11.91 mm)  M10  —\nhex drive, flanged, metric, soft wood  901050-25  M10-1.5  25 mm (0.98 in)  15/32 in (11.91 mm)  M10  —\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- E-Z LOK: Brochure 2026: knife-thread inserts for wood (brass and stainless), inch and metric: part number, thread, length, drill size, drive tool — web — Maker brochure; numbers only — https://www.ezlok.com/assets/documents/literature/EZ-LOK Brochure 2026.pdf\n- E-Z LOK: Brochure 2023: knife-thread inserts and hex-drive inserts for soft wood (flanged and flush, inch and metric): part number, thread, length, drill size, hex drive, drive tool — web — Maker brochure; numbers only — https://www.ezlok.com/assets/documents/EZ-LOKBrochure_2023.pdf\n- E-Z LOK: E-Z Hex threaded insert for soft wood, flanged, M10-1.5 × 13 mm (901050-13): product page with a CAD link per part (hole 15/32 in in the CAD link, matches the brochure) — web — Maker product page; numbers only — https://www.ezlok.com/product/609\n- Albany County Fasteners: Brass threaded insert for wood 400-4, 1/4-20 × 0.500 in: solid brass, external knife thread (outside diameter and drill size not given there) — web — Distributor page; numbers only — https://www.albanycountyfasteners.com/1-4-20-brass-thread-inserts-wood-400-4-p/117012.htm\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=threaded-inserts-for-wood-e-z-lok\n",
 "sources": [
  {
   "publisher": "E-Z LOK",
   "title": "Brochure 2026: knife-thread inserts for wood (brass and stainless), inch and metric: part number, thread, length, drill size, drive tool",
   "url": "https://www.ezlok.com/assets/documents/literature/EZ-LOK Brochure 2026.pdf",
   "formats": [
    "web"
   ],
   "license": "Maker brochure; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "E-Z LOK",
   "title": "Brochure 2023: knife-thread inserts and hex-drive inserts for soft wood (flanged and flush, inch and metric): part number, thread, length, drill size, hex drive, drive tool",
   "url": "https://www.ezlok.com/assets/documents/EZ-LOKBrochure_2023.pdf",
   "formats": [
    "web"
   ],
   "license": "Maker brochure; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "E-Z LOK",
   "title": "E-Z Hex threaded insert for soft wood, flanged, M10-1.5 × 13 mm (901050-13): product page with a CAD link per part (hole 15/32 in in the CAD link, matches the brochure)",
   "url": "https://www.ezlok.com/product/609",
   "formats": [
    "web"
   ],
   "license": "Maker product page; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Albany County Fasteners",
   "title": "Brass threaded insert for wood 400-4, 1/4-20 × 0.500 in: solid brass, external knife thread (outside diameter and drill size not given there)",
   "url": "https://www.albanycountyfasteners.com/1-4-20-brass-thread-inserts-wood-400-4-p/117012.htm",
   "formats": [
    "web"
   ],
   "license": "Distributor page; numbers only",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "heat-set-inserts",
  "rivet-nuts-flat-head",
  "helical-thread-inserts-din-8140",
  "ribbed-plastic-expansion-anchors",
  "wood-screws-flat-head-inch",
  "thread-reference-tap-drills-clearance"
 ],
 "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": [],
 "faq": [
  {
   "q": "What drill bit for a 1/4-20 E-Z Lok knife-thread insert?",
   "a": "25/64 in (9.92 mm) for 400-4 (0.500 in long) and 400-475 (0.750 in long), and for 1/4-28; 2026 and 2023 brochures agree."
  },
  {
   "q": "What drill bit for a 1/4-20 E-Z Hex flanged insert in soft wood?",
   "a": "23/64 in (9.13 mm), for the 10, 13, 20 and 25 mm lengths; hex drive M6."
  },
  {
   "q": "What drill bit for an M6 threaded insert for wood?",
   "a": "25/64 in for the knife-thread 400-M6 (0.500 in long); 23/64 in for the M6-1.0 hex-drive inserts."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/threaded-inserts-for-wood-e-z-lok/index.md"
}