{
 "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": "ball-plungers-gn-615",
 "name": "Spring plungers GN 615 (ball plungers): thread, ball diameter, length, travel and spring load, M2 to M24",
 "kind": "standard",
 "category": "Hardware",
 "group": "Fasteners",
 "year": null,
 "question": "What are the dimensions and spring force of a GN 615 spring plunger (ball plunger): thread, ball diameter, length, travel?",
 "tags": [
  "spring plunger",
  "ball plunger",
  "detent",
  "gn 615",
  "ganter",
  "plunger",
  "fastener",
  "jig",
  "fixture",
  "tool"
 ],
 "aliases": [
  "gn 615 spring plunger dimensions",
  "ball plunger m6 dimensions",
  "spring plunger m8 length",
  "gn 615 m5 spring force",
  "ball plunger m3 ball diameter",
  "spring plunger thread sizes",
  "gn 615 m10 stroke",
  "ball plunger m4 force",
  "spring plunger m12 ball 8",
  "gn 615 k ks kn ksn",
  "threaded ball plunger specification",
  "gn 615 table",
  "m6 ball plunger 14 mm",
  "spring plunger m16 ball 10",
  "detent plunger dimensions"
 ],
 "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/ball-plungers-gn-615/",
 "sheet_txt": "https://xemstudio.com/objects/ball-plungers-gn-615/sheet.txt",
 "sheet": {
  "basis": "Ganter's GN 615 table (d1, d2, l, w, spring loads) agreeing with Elesa's GN 615 sheet and J.W. Winco's manual page on every size except the M4 standard spring; numbers only",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "GN 615 is the common threaded spring plunger (ball plunger, spring-loaded detent, push-on / push-off element, ejector): a threaded steel or stainless body with a slotted end, a spring and a hardened ball (Ganter: housing blackened steel, ball hardened steel 1.3505; KN / KSN stainless). K is steel with the standard spring, KS steel with the high spring, KN and KSN the stainless versions; high-spring plungers have a zinc-plated ball (Winco) or a marked housing. Sizes M2 to M24; M20 and M24 are the large end.",
   "The columns follow Ganter's table: d1 thread, d2 ball diameter, l length, w compression (the stroke the ball can be pushed in; the sources do not define it more closely), spring load initial (ball just touching its stop, pre-load) and end (at compression w). Ganter's own page, the Elesa sheet (KN / KSN), the J.W. Winco manual page (M3 to M24, 3NG11 to 24NG11) and Cromwell / Ehorst listings (M3, M6, M10 spot checks) agree on d2, l, w and the high spring load for every size. They differ in one place: the M4 standard spring, which Ganter prints as 8.5 N initial / 14 N end and Elesa and Winco as 6 N initial / 14.5 N end; both are shown. Loads are approximate ('≈') in the sources.",
   "GN 615.3 is the hex-socket version with thread locking: it is longer for the same thread (l in the last column, M3 8, M4 12, M5 14, M6 15, M8 18, M10 23, M12 26, M16 33, M20 43, M24 48 mm; Winco, two copies agree) and has a hex socket A/F 2 (M4) to 12 (M24) instead of a screwdriver slot.",
   "No file: the slot width and depth, ball seat and body ends are not in the tables, so a drawing would be invented. A tapped hole for the plunger is the standard ISO coarse thread listed (drill per your thread table). Ganter publishes per-part CAD for GN 615 on its product page (linked)."
  ],
  "table": {
   "columns": [
    "thread d1",
    "pitch, mm (ISO coarse)",
    "ball Ø d2, mm",
    "length l (±0.1), mm",
    "compression w, mm",
    "standard spring load initial / end, N (K, KN)",
    "high spring load initial / end, N (KS, KSN)",
    "other maker readings of the standard load",
    "GN 615.3 (hex socket) length l, mm"
   ],
   "rows": [
    [
     "M2",
     "0.4",
     "1",
     "4",
     "0.3",
     "0.8 / 1.5",
     "1.6 / 2",
     "same in Elesa and Winco",
     "—"
    ],
    [
     "M3",
     "0.5",
     "1.5",
     "7",
     "0.4",
     "3 / 4.5",
     "6.4 / 9.5",
     "same in Elesa and Winco",
     "8"
    ],
    [
     "M4",
     "0.7",
     "2.5",
     "9",
     "0.8",
     "8.5 / 14",
     "12 / 18",
     "Elesa KN, Winco K: 6 / 14.5",
     "12"
    ],
    [
     "M5",
     "0.8",
     "3",
     "12",
     "0.9",
     "8 / 14",
     "15 / 22",
     "same in Elesa and Winco",
     "14"
    ],
    [
     "M6",
     "1",
     "3.5",
     "14",
     "1",
     "11 / 18",
     "19 / 28",
     "same in Elesa and Winco",
     "15"
    ],
    [
     "M8",
     "1.25",
     "4.5",
     "16",
     "1.5",
     "18 / 31",
     "36 / 62",
     "same in Elesa and Winco",
     "18"
    ],
    [
     "M10",
     "1.5",
     "6",
     "19",
     "2",
     "24 / 45",
     "57 / 104",
     "same in Elesa and Winco",
     "23"
    ],
    [
     "M12",
     "1.75",
     "8",
     "22",
     "2.5",
     "26 / 49",
     "61 / 110",
     "same in Elesa and Winco",
     "26"
    ],
    [
     "M16",
     "2",
     "10",
     "24",
     "3.5",
     "41 / 86",
     "68 / 142",
     "same in Elesa and Winco",
     "33"
    ],
    [
     "M20",
     "2.5",
     "12",
     "30",
     "4.5",
     "56 / 111",
     "84 / 166",
     "same in Elesa and Winco",
     "43"
    ],
    [
     "M24",
     "3",
     "15",
     "34",
     "5.5",
     "81 / 151",
     "127 / 237",
     "same in Elesa and Winco",
     "48"
    ]
   ]
  }
 },
 "sheet_text": "Spring plungers GN 615 (ball plungers): thread, ball diameter, length, travel and spring load, M2 to M24 — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/ball-plungers-gn-615/  (sheet CC BY 4.0)\nBasis: Ganter's GN 615 table (d1, d2, l, w, spring loads) agreeing with Elesa's GN 615 sheet and J.W. Winco's manual page on every size except the M4 standard spring; numbers only\nCatalog version: 2026-10-20\n\nSizes: see table below\n- GN 615 is the common threaded spring plunger (ball plunger, spring-loaded detent, push-on / push-off element, ejector): a threaded steel or stainless body with a slotted end, a spring and a hardened ball (Ganter: housing blackened steel, ball hardened steel 1.3505; KN / KSN stainless). K is steel with the standard spring, KS steel with the high spring, KN and KSN the stainless versions; high-spring plungers have a zinc-plated ball (Winco) or a marked housing. Sizes M2 to M24; M20 and M24 are the large end.\n- The columns follow Ganter's table: d1 thread, d2 ball diameter, l length, w compression (the stroke the ball can be pushed in; the sources do not define it more closely), spring load initial (ball just touching its stop, pre-load) and end (at compression w). Ganter's own page, the Elesa sheet (KN / KSN), the J.W. Winco manual page (M3 to M24, 3NG11 to 24NG11) and Cromwell / Ehorst listings (M3, M6, M10 spot checks) agree on d2, l, w and the high spring load for every size. They differ in one place: the M4 standard spring, which Ganter prints as 8.5 N initial / 14 N end and Elesa and Winco as 6 N initial / 14.5 N end; both are shown. Loads are approximate ('≈') in the sources.\n- GN 615.3 is the hex-socket version with thread locking: it is longer for the same thread (l in the last column, M3 8, M4 12, M5 14, M6 15, M8 18, M10 23, M12 26, M16 33, M20 43, M24 48 mm; Winco, two copies agree) and has a hex socket A/F 2 (M4) to 12 (M24) instead of a screwdriver slot.\n- No file: the slot width and depth, ball seat and body ends are not in the tables, so a drawing would be invented. A tapped hole for the plunger is the standard ISO coarse thread listed (drill per your thread table). Ganter publishes per-part CAD for GN 615 on its product page (linked).\n\nthread d1  pitch, mm (ISO coarse)  ball Ø d2, mm  length l (±0.1), mm  compression w, mm  standard spring load initial / end, N (K, KN)  high spring load initial / end, N (KS, KSN)  other maker readings of the standard load  GN 615.3 (hex socket) length l, mm\nM2  0.4  1  4  0.3  0.8 / 1.5  1.6 / 2  same in Elesa and Winco  —\nM3  0.5  1.5  7  0.4  3 / 4.5  6.4 / 9.5  same in Elesa and Winco  8\nM4  0.7  2.5  9  0.8  8.5 / 14  12 / 18  Elesa KN, Winco K: 6 / 14.5  12\nM5  0.8  3  12  0.9  8 / 14  15 / 22  same in Elesa and Winco  14\nM6  1  3.5  14  1  11 / 18  19 / 28  same in Elesa and Winco  15\nM8  1.25  4.5  16  1.5  18 / 31  36 / 62  same in Elesa and Winco  18\nM10  1.5  6  19  2  24 / 45  57 / 104  same in Elesa and Winco  23\nM12  1.75  8  22  2.5  26 / 49  61 / 110  same in Elesa and Winco  26\nM16  2  10  24  3.5  41 / 86  68 / 142  same in Elesa and Winco  33\nM20  2.5  12  30  4.5  56 / 111  84 / 166  same in Elesa and Winco  43\nM24  3  15  34  5.5  81 / 151  127 / 237  same in Elesa and Winco  48\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Ganter: GN 615 Spring plungers, steel / stainless steel, with ball, with slot: d1, d2, l, w, spring loads — web — Publisher's page; dimensions are facts — https://www.ganternorm.com/en/products/3.1-Indexing-locking-blocking-with-pins-and-ball-shaped-elements/Spring-plungers/GN-615-Spring-plungers-with-ball-with-slot-Steel-Stainless-Steel\n- Elesa (GN 615 stainless KN / KSN sheet): GN 615 ball spring plungers, M2 to M24: d1, d2, l, w, preload and max load — web — Publisher's page; dimensions are facts — https://docs.rs-online.com/5e44/A700000015335016.pdf\n- J.W. Winco (distributor copy): GN 615 metric steel ball plungers M3 to M24: ball, length, travel, standard / heavy loads — web — Publisher's page; dimensions are facts — https://doc.pegamo.es/www/componente/doc/E7E8D165CAAC42E4B10F59E1D5560461.pdf\n- J.W. Winco (distributor copy): GN 615.3 ball plungers with hexagon socket and thread locking: M3 to M24 — web — Publisher's page; dimensions are facts — https://datasheet.sic-components.com/615_3.pdf\n- Ehorst: GN 615 M3 K product page (ball 1.5, length 7, travel 0.4, 3 N) — web — Publisher's page; dimensions are facts — https://ehorst.de/en/Druckstueck-federnd-mit-Kugel-GN-615-M3-K-Federdruck-normal-1076275.html\n- Cromwell: GN 615 M6 K and M10 K product pages (ball 3.5 / 6, length 14 / 19, w 1 / 2) — web — Publisher's page; dimensions are facts — https://www.cromwell.co.uk/shop/materials-maintenance-and-standard-parts/spring-plungers/gn615-m10-k-steel-spring-plunger-std-spring/p/GAN4255612N\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=ball-plungers-gn-615\n",
 "sources": [
  {
   "publisher": "Ganter",
   "title": "GN 615 Spring plungers, steel / stainless steel, with ball, with slot: d1, d2, l, w, spring loads",
   "url": "https://www.ganternorm.com/en/products/3.1-Indexing-locking-blocking-with-pins-and-ball-shaped-elements/Spring-plungers/GN-615-Spring-plungers-with-ball-with-slot-Steel-Stainless-Steel",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Elesa (GN 615 stainless KN / KSN sheet)",
   "title": "GN 615 ball spring plungers, M2 to M24: d1, d2, l, w, preload and max load",
   "url": "https://docs.rs-online.com/5e44/A700000015335016.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "J.W. Winco (distributor copy)",
   "title": "GN 615 metric steel ball plungers M3 to M24: ball, length, travel, standard / heavy loads",
   "url": "https://doc.pegamo.es/www/componente/doc/E7E8D165CAAC42E4B10F59E1D5560461.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "J.W. Winco (distributor copy)",
   "title": "GN 615.3 ball plungers with hexagon socket and thread locking: M3 to M24",
   "url": "https://datasheet.sic-components.com/615_3.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Ehorst",
   "title": "GN 615 M3 K product page (ball 1.5, length 7, travel 0.4, 3 N)",
   "url": "https://ehorst.de/en/Druckstueck-federnd-mit-Kugel-GN-615-M3-K-Federdruck-normal-1076275.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Cromwell",
   "title": "GN 615 M6 K and M10 K product pages (ball 3.5 / 6, length 14 / 19, w 1 / 2)",
   "url": "https://www.cromwell.co.uk/shop/materials-maintenance-and-standard-parts/spring-plungers/gn615-m10-k-steel-spring-plunger-std-spring/p/GAN4255612N",
   "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": [
  "spring-plungers-gn-616-nose-pin",
  "indexing-plungers-gn-617",
  "clevis-pins",
  "dowel-pins-metric",
  "socket-head-cap-screws-metric"
 ],
 "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 are the dimensions of an M6 GN 615 ball plunger?",
   "a": "Ball Ø3.5 mm, length 14 mm, compression 1 mm, standard spring 11 N initial / 18 N end, high spring 19 / 28 N."
  },
  {
   "q": "How big is the ball in an M8 spring plunger?",
   "a": "4.5 mm in GN 615 (length 16 mm, compression 1.5 mm)."
  },
  {
   "q": "Do sources agree on the M4 spring force?",
   "a": "Not quite: Ganter prints 8.5 N initial / 14 N end, Elesa and Winco 6 N / 14.5 N; geometry (ball 2.5, length 9, w 0.8) agrees."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/ball-plungers-gn-615/index.md"
}