{
 "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": "chipboard-wood-screws-din-7505",
 "name": "Chipboard screws, DIN 7505 (3, 3.5, 4, 4.5, 5, 6 mm): pan, countersunk and oval-countersunk head dimensions, cross recess size + type-B envelope models",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What are the head diameter, head height and cross recess size of a 4 mm or 5 mm chipboard (particle board) screw?",
 "tags": [
  "chipboard screw",
  "particle board screw",
  "spax screw",
  "din 7505",
  "wood screw metric",
  "countersunk wood screw",
  "pozidriv wood screw",
  "4 mm screw",
  "5 mm screw"
 ],
 "aliases": [
  "din 7505 dimensions",
  "chipboard screw head diameter",
  "4 mm chipboard screw head size",
  "5 mm wood screw head diameter",
  "spax screw dimensions 4.0 x 40",
  "chipboard screw pz2",
  "3.5 mm wood screw head diameter",
  "chipboard screw 4.5 head height",
  "6 mm chipboard screw pz3",
  "din 7505 type b",
  "metric wood screw sizes",
  "wood screw 5 mm countersink diameter"
 ],
 "overall_mm": {
  "length": 40,
  "width": 12,
  "height": 12
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 6,
 "url": "https://xemstudio.com/objects/chipboard-wood-screws-din-7505/",
 "sheet_txt": "https://xemstudio.com/objects/chipboard-wood-screws-din-7505/sheet.txt",
 "sheet": {
  "basis": "fasten.it's DIN 7505 table (types A, B and C, the 1986 edition, now with no current standard of its own), Flints' catalogue for the Spax drive sizes; six type-B envelope models as files",
  "overall_mm": {
   "length": 40,
   "width": 12,
   "height": 12
  },
  "notes": [
   "Millimetres. DIN 7505 covers screws for particle board with cross recess form Z in three head forms: A pan, B flat countersunk, C oval countersunk; nominal diameters 3, 3.5, 4, 4.5, 5 and 6 mm. fasten.it states there are no more technical norms for these screws and that sizes can vary between makers. The page prints no lengths. Columns follow the page: nominal diameter, P (pitch, ±10 %), dk (head diameter, min–max), k (head height, max for A and B, ≈ for C), a (max), r (min for A, min–max for B, max for C), d1 and d2 (min–max, not defined on the page), recess number, m (≈, not defined) and t (min–max, not defined).",
   "Recess number agrees with the Spax pairing in Flints' catalogue: 3 mm PZ1; 3.5, 4, 4.5 and 5 mm PZ2; 6 mm PZ3 (Flints prints only the drive size, no head dimensions). Klimas' Ø5 mm KMH chipboard screw sheet (PZ2) was found but not tabulated.",
   "Pilot holes are not on this page: no published table for metric chipboard screws could be verified (Spax' own sheets give only 'without pre-drilling, depending on the wood'). Flints' catalogue has a pilot-hole table for imperial gauge numbers, which is on wood-screws-flat-head-inch as a separate set of sources, not converted here.",
   "Files are Xem-drawn envelopes of the type B head, not the real screw: a cone from dk max at the top down to the nominal diameter over k max, then a plain shank at the nominal diameter (the real thread major diameter is d1 and the thread is smaller at the root); no cross recess, no thread, no point. The overall length 40 mm is an example chosen by Xem for all six files, not a published length.",
   "Not on this page: SPAX trade-name geometry (4CUT tip, T-STAR plus drive), Torx-drive chipboard screws, and screw lengths. Countersunk metric machine screws: countersunk-screws-metric."
  ],
  "table": {
   "columns": [
    "head type",
    "nominal Ø",
    "P (pitch ±10 %)",
    "dk (head dia, min–max)",
    "k (height)",
    "a max",
    "r",
    "d1 (min–max)",
    "d2 (min–max)",
    "recess no.",
    "m ≈",
    "t (min–max)"
   ],
   "rows": [
    [
     "Type A (pan head)",
     "3",
     "1.35",
     "5.52–6",
     "2.37 (max)",
     "1.35",
     "0.25 min",
     "2.75–3",
     "1.5–1.9",
     "1",
     "3.12",
     "1.68–1.93"
    ],
    [
     "Type A (pan head)",
     "3.5",
     "1.6",
     "6.62–7",
     "2.72 (max)",
     "1.6",
     "0.3 min",
     "3.2–3.5",
     "1.67–2.15",
     "2",
     "3.81",
     "1.65–2.11"
    ],
    [
     "Type A (pan head)",
     "4",
     "1.8",
     "7.42–8",
     "2.92 (max)",
     "1.8",
     "0.3 min",
     "3.7–4",
     "2.02–2.5",
     "2",
     "4.65",
     "1.9–2.36"
    ],
    [
     "Type A (pan head)",
     "4.5",
     "2",
     "8.42–9",
     "3.15 (max)",
     "2",
     "0.3 min",
     "4.2–4.5",
     "2.22–2.7",
     "2",
     "5",
     "2.64–3.1"
    ],
    [
     "Type A (pan head)",
     "5",
     "2.2",
     "9.42–10",
     "3.65 (max)",
     "2.2",
     "0.3 min",
     "4.7–5",
     "2.52–3",
     "2",
     "5.28",
     "2.64–3.1"
    ],
    [
     "Type A (pan head)",
     "6",
     "2.6",
     "11.3–12",
     "4.25 (max)",
     "2.6",
     "0.4 min",
     "5.7–6",
     "3.22–3.7",
     "3",
     "6.63",
     "3.02–3.48"
    ],
    [
     "Type B (flat countersunk)",
     "3",
     "1.35",
     "5.6–6",
     "1.9 (max)",
     "1.6",
     "1.2–1.6",
     "2.8–3",
     "1.7–1.9",
     "1",
     "3",
     "1.6–2"
    ],
    [
     "Type B (flat countersunk)",
     "3.5",
     "1.6",
     "6.6–7",
     "2.1 (max)",
     "1.8",
     "1.5–1.9",
     "3.3–3.5",
     "2–2.2",
     "2",
     "4",
     "1.6–2.1"
    ],
    [
     "Type B (flat countersunk)",
     "4",
     "1.8",
     "7.5–8",
     "2.5 (max)",
     "2",
     "1.6–2.1",
     "3.75–4",
     "2.25–2.5",
     "2",
     "4.4",
     "2.05–2.5"
    ],
    [
     "Type B (flat countersunk)",
     "4.5",
     "2",
     "8.5–9",
     "2.7 (max)",
     "2.2",
     "1.8–2.3",
     "4.25–4.5",
     "2.45–2.7",
     "2",
     "4.8",
     "2.6–3.1"
    ],
    [
     "Type B (flat countersunk)",
     "5",
     "2.2",
     "9.5–10",
     "3 (max)",
     "2.5",
     "2–2.6",
     "4.7–5",
     "2.7–3",
     "2",
     "5.3",
     "3–3.45"
    ],
    [
     "Type B (flat countersunk)",
     "6",
     "2.6",
     "11.5–12",
     "3.6 (max)",
     "3",
     "2–2.6",
     "5.7–6",
     "3.4–3.7",
     "3",
     "6.6",
     "3–3.45"
    ],
    [
     "Type C (oval countersunk)",
     "3",
     "1.35",
     "5.7–6",
     "1.8 (≈)",
     "2.35",
     "1.5 max",
     "2.75–3",
     "1.5–1.9",
     "1",
     "3.12",
     "1.78–2.08"
    ],
    [
     "Type C (oval countersunk)",
     "3.5",
     "1.6",
     "6.64–7",
     "2 (≈)",
     "2.6",
     "1.8 max",
     "3.2–3.5",
     "1.67–2.15",
     "2",
     "4.06",
     "1.81–2.11"
    ],
    [
     "Type C (oval countersunk)",
     "4",
     "1.8",
     "7.64–8",
     "2.35 (≈)",
     "2.8",
     "2 max",
     "3.7–4",
     "2.02–2.5",
     "2",
     "4.65",
     "2.42–2.72"
    ],
    [
     "Type C (oval countersunk)",
     "4.5",
     "2",
     "8.64–9",
     "2.55 (≈)",
     "3",
     "2.2 max",
     "4.2–4.5",
     "2.22–2.7",
     "2",
     "5.08",
     "2.85–3.15"
    ],
    [
     "Type C (oval countersunk)",
     "5",
     "2.2",
     "9.64–10",
     "2.85 (≈)",
     "3.2",
     "2.5 max",
     "4.7–5",
     "2.52–3",
     "2",
     "5.28",
     "2.89–3.35"
    ],
    [
     "Type C (oval countersunk)",
     "6",
     "2.6",
     "11.57–12",
     "3.35 (≈)",
     "3.6",
     "2.5 max",
     "5.7–6",
     "3.22–3.7",
     "3",
     "7",
     "3.4–3.86"
    ]
   ]
  }
 },
 "sheet_text": "Chipboard screws, DIN 7505 (3, 3.5, 4, 4.5, 5, 6 mm): pan, countersunk and oval-countersunk head dimensions, cross recess size + type-B envelope models — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/chipboard-wood-screws-din-7505/  (sheet CC BY 4.0)\nBasis: fasten.it's DIN 7505 table (types A, B and C, the 1986 edition, now with no current standard of its own), Flints' catalogue for the Spax drive sizes; six type-B envelope models as files\nCatalog version: 2026-10-20\n\nOverall (mm): length 40.0, width 12.0, height 12.0\n- Millimetres. DIN 7505 covers screws for particle board with cross recess form Z in three head forms: A pan, B flat countersunk, C oval countersunk; nominal diameters 3, 3.5, 4, 4.5, 5 and 6 mm. fasten.it states there are no more technical norms for these screws and that sizes can vary between makers. The page prints no lengths. Columns follow the page: nominal diameter, P (pitch, ±10 %), dk (head diameter, min–max), k (head height, max for A and B, ≈ for C), a (max), r (min for A, min–max for B, max for C), d1 and d2 (min–max, not defined on the page), recess number, m (≈, not defined) and t (min–max, not defined).\n- Recess number agrees with the Spax pairing in Flints' catalogue: 3 mm PZ1; 3.5, 4, 4.5 and 5 mm PZ2; 6 mm PZ3 (Flints prints only the drive size, no head dimensions). Klimas' Ø5 mm KMH chipboard screw sheet (PZ2) was found but not tabulated.\n- Pilot holes are not on this page: no published table for metric chipboard screws could be verified (Spax' own sheets give only 'without pre-drilling, depending on the wood'). Flints' catalogue has a pilot-hole table for imperial gauge numbers, which is on wood-screws-flat-head-inch as a separate set of sources, not converted here.\n- Files are Xem-drawn envelopes of the type B head, not the real screw: a cone from dk max at the top down to the nominal diameter over k max, then a plain shank at the nominal diameter (the real thread major diameter is d1 and the thread is smaller at the root); no cross recess, no thread, no point. The overall length 40 mm is an example chosen by Xem for all six files, not a published length.\n- Not on this page: SPAX trade-name geometry (4CUT tip, T-STAR plus drive), Torx-drive chipboard screws, and screw lengths. Countersunk metric machine screws: countersunk-screws-metric.\n\nhead type  nominal Ø  P (pitch ±10 %)  dk (head dia, min–max)  k (height)  a max  r  d1 (min–max)  d2 (min–max)  recess no.  m ≈  t (min–max)\nType A (pan head)  3  1.35  5.52–6  2.37 (max)  1.35  0.25 min  2.75–3  1.5–1.9  1  3.12  1.68–1.93\nType A (pan head)  3.5  1.6  6.62–7  2.72 (max)  1.6  0.3 min  3.2–3.5  1.67–2.15  2  3.81  1.65–2.11\nType A (pan head)  4  1.8  7.42–8  2.92 (max)  1.8  0.3 min  3.7–4  2.02–2.5  2  4.65  1.9–2.36\nType A (pan head)  4.5  2  8.42–9  3.15 (max)  2  0.3 min  4.2–4.5  2.22–2.7  2  5  2.64–3.1\nType A (pan head)  5  2.2  9.42–10  3.65 (max)  2.2  0.3 min  4.7–5  2.52–3  2  5.28  2.64–3.1\nType A (pan head)  6  2.6  11.3–12  4.25 (max)  2.6  0.4 min  5.7–6  3.22–3.7  3  6.63  3.02–3.48\nType B (flat countersunk)  3  1.35  5.6–6  1.9 (max)  1.6  1.2–1.6  2.8–3  1.7–1.9  1  3  1.6–2\nType B (flat countersunk)  3.5  1.6  6.6–7  2.1 (max)  1.8  1.5–1.9  3.3–3.5  2–2.2  2  4  1.6–2.1\nType B (flat countersunk)  4  1.8  7.5–8  2.5 (max)  2  1.6–2.1  3.75–4  2.25–2.5  2  4.4  2.05–2.5\nType B (flat countersunk)  4.5  2  8.5–9  2.7 (max)  2.2  1.8–2.3  4.25–4.5  2.45–2.7  2  4.8  2.6–3.1\nType B (flat countersunk)  5  2.2  9.5–10  3 (max)  2.5  2–2.6  4.7–5  2.7–3  2  5.3  3–3.45\nType B (flat countersunk)  6  2.6  11.5–12  3.6 (max)  3  2–2.6  5.7–6  3.4–3.7  3  6.6  3–3.45\nType C (oval countersunk)  3  1.35  5.7–6  1.8 (≈)  2.35  1.5 max  2.75–3  1.5–1.9  1  3.12  1.78–2.08\nType C (oval countersunk)  3.5  1.6  6.64–7  2 (≈)  2.6  1.8 max  3.2–3.5  1.67–2.15  2  4.06  1.81–2.11\nType C (oval countersunk)  4  1.8  7.64–8  2.35 (≈)  2.8  2 max  3.7–4  2.02–2.5  2  4.65  2.42–2.72\nType C (oval countersunk)  4.5  2  8.64–9  2.55 (≈)  3  2.2 max  4.2–4.5  2.22–2.7  2  5.08  2.85–3.15\nType C (oval countersunk)  5  2.2  9.64–10  2.85 (≈)  3.2  2.5 max  4.7–5  2.52–3  2  5.28  2.89–3.35\nType C (oval countersunk)  6  2.6  11.57–12  3.35 (≈)  3.6  2.5 max  5.7–6  3.22–3.7  3  7  3.4–3.86\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- fasten.it: DIN 7505 particle board (chipboard) screws with cross recess Z, types A (pan), B (countersunk) and C (oval countersunk), 3 to 6 mm: P, dk, k, a, r, d1, d2, recess no., m, t (1986 table; no lengths) — web — Reference page; numbers only. The page does not define the column letters beyond the names dk, k and the nominal diameter — https://www.fasten.it/norms/norm/din_7505\n- Flints (catalogue PDF): Wood screw gauge table (No. 2 to 14: diameter mm, pilot hole) and Spax metric screws by nominal diameter 3 / 3.5 / 4 / 4.5 / 5 / 6 mm with drive PZ1 / PZ2 / PZ3 — web — Distributor catalogue; numbers only — https://www.flints.co.uk/pdf/catalogue/screws.pdf\n- Klimas (via JMB): Wkret-met KMH chipboard screw, countersunk head, Ø5 mm, PZ2: technical sheet (cross-reference; not tabulated) — web — Maker sheet; not used for numbers — https://jmbonline.sk/cdn/shop/files/KLIMAS_Wkret-met_KMH_O5_mm_PZ-2_skrutka_do_dreva_so_zapustnou_krizovou_hlavou_-_technicky_list_EN.pdf\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 6 parts): https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/index.json\nAPI: https://xemstudio.com/api/geometry?object=chipboard-wood-screws-din-7505\n",
 "sources": [
  {
   "publisher": "fasten.it",
   "title": "DIN 7505 particle board (chipboard) screws with cross recess Z, types A (pan), B (countersunk) and C (oval countersunk), 3 to 6 mm: P, dk, k, a, r, d1, d2, recess no., m, t (1986 table; no lengths)",
   "url": "https://www.fasten.it/norms/norm/din_7505",
   "formats": [
    "web"
   ],
   "license": "Reference page; numbers only. The page does not define the column letters beyond the names dk, k and the nominal diameter",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Flints (catalogue PDF)",
   "title": "Wood screw gauge table (No. 2 to 14: diameter mm, pilot hole) and Spax metric screws by nominal diameter 3 / 3.5 / 4 / 4.5 / 5 / 6 mm with drive PZ1 / PZ2 / PZ3",
   "url": "https://www.flints.co.uk/pdf/catalogue/screws.pdf",
   "formats": [
    "web"
   ],
   "license": "Distributor catalogue; numbers only",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Klimas (via JMB)",
   "title": "Wkret-met KMH chipboard screw, countersunk head, Ø5 mm, PZ2: technical sheet (cross-reference; not tabulated)",
   "url": "https://jmbonline.sk/cdn/shop/files/KLIMAS_Wkret-met_KMH_O5_mm_PZ-2_skrutka_do_dreva_so_zapustnou_krizovou_hlavou_-_technicky_list_EN.pdf",
   "formats": [
    "web"
   ],
   "license": "Maker sheet; not used for numbers",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "wood-screws-flat-head-inch",
  "deck-screws-8-10-simpson-grk",
  "countersunk-screws-metric",
  "lag-screws-hex-inch",
  "plywood-and-drywall"
 ],
 "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 is the head diameter of a 4 mm chipboard screw?",
   "a": "Type B countersunk: 7.5 to 8 mm (dk), 2.5 mm high (k max); type A pan head 7.42 to 8 mm, 2.92 mm high. Recess number 2 (PZ2)."
  },
  {
   "q": "What Pozidriv size for a 6 mm chipboard screw?",
   "a": "Recess number 3 (PZ3) in DIN 7505 as listed on fasten.it; Flints lists Spax 6 mm screws with PZ3."
  },
  {
   "q": "What countersink diameter for a 5 mm chipboard screw?",
   "a": "The type B head is 9.5 to 10 mm across (dk) and 3 mm high (k max); the oval head type C is 9.64 to 10 mm across."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "chipboard-screw-din-7505-b-3x40-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-3x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-3x40-envelope.stl",
   "note": "DIN 7505 type B 3 mm countersunk chipboard screw envelope: head Ø6 (dk max) tapering to the Ø3 nominal body over 1.9 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  },
  {
   "file": "chipboard-screw-din-7505-b-3-5x40-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-3-5x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-3-5x40-envelope.stl",
   "note": "DIN 7505 type B 3.5 mm countersunk chipboard screw envelope: head Ø7 (dk max) tapering to the Ø3.5 nominal body over 2.1 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  },
  {
   "file": "chipboard-screw-din-7505-b-4x40-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-4x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-4x40-envelope.stl",
   "note": "DIN 7505 type B 4 mm countersunk chipboard screw envelope: head Ø8 (dk max) tapering to the Ø4 nominal body over 2.5 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  },
  {
   "file": "chipboard-screw-din-7505-b-4-5x40-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-4-5x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-4-5x40-envelope.stl",
   "note": "DIN 7505 type B 4.5 mm countersunk chipboard screw envelope: head Ø9 (dk max) tapering to the Ø4.5 nominal body over 2.7 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  },
  {
   "file": "chipboard-screw-din-7505-b-5x40-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-5x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-5x40-envelope.stl",
   "note": "DIN 7505 type B 5 mm countersunk chipboard screw envelope: head Ø10 (dk max) tapering to the Ø5 nominal body over 3 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  },
  {
   "file": "chipboard-screw-din-7505-b-6x40-envelope",
   "formats": [
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    "stl"
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   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-6x40-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/chipboard-wood-screws-din-7505/chipboard-screw-din-7505-b-6x40-envelope.stl",
   "note": "DIN 7505 type B 6 mm countersunk chipboard screw envelope: head Ø12 (dk max) tapering to the Ø6 nominal body over 3.6 mm (k max); plain body, example overall length 40 mm (Xem's choice); no cross recess, thread or point"
  }
 ],
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}