{
 "titre": "Filetages métriques ISO et filetages gaz G",
 "source": "Calcul par les formules d’ISO 68-1:1998 et d’ISO 724:1993 ; pas d’ISO 261:1998 et d’ISO 262:1998 ; gaz G : ISO 228-1:2000",
 "norme": "ISO 68-1, ISO 724, ISO 261, ISO 262, ISO 228-1",
 "edition": "1998, 1993, 1998, 1998, 2000",
 "verifie_le": "2026-10-21",
 "metrique": [
  {
   "designation": "M1",
   "diametre_mm": 1,
   "pas_mm": 0.25,
   "type": "gros pas",
   "d2_mm": 0.838,
   "D1_mm": 0.729,
   "d3_mm": 0.693,
   "As_mm2": 0.46,
   "foret_mm": 0.75,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M1×0,2",
   "diametre_mm": 1,
   "pas_mm": 0.2,
   "type": "pas fin",
   "d2_mm": 0.87,
   "D1_mm": 0.783,
   "d3_mm": 0.755,
   "As_mm2": 0.52,
   "foret_mm": 0.8,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M1,2",
   "diametre_mm": 1.2,
   "pas_mm": 0.25,
   "type": "gros pas",
   "d2_mm": 1.038,
   "D1_mm": 0.929,
   "d3_mm": 0.893,
   "As_mm2": 0.73,
   "foret_mm": 0.95,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M1,2×0,2",
   "diametre_mm": 1.2,
   "pas_mm": 0.2,
   "type": "pas fin",
   "d2_mm": 1.07,
   "D1_mm": 0.983,
   "d3_mm": 0.955,
   "As_mm2": 0.8,
   "foret_mm": 1.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M1,6",
   "diametre_mm": 1.6,
   "pas_mm": 0.35,
   "type": "gros pas",
   "d2_mm": 1.373,
   "D1_mm": 1.221,
   "d3_mm": 1.171,
   "As_mm2": 1.27,
   "foret_mm": 1.25,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M1,6×0,2",
   "diametre_mm": 1.6,
   "pas_mm": 0.2,
   "type": "pas fin",
   "d2_mm": 1.47,
   "D1_mm": 1.383,
   "d3_mm": 1.355,
   "As_mm2": 1.57,
   "foret_mm": 1.4,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M2",
   "diametre_mm": 2,
   "pas_mm": 0.4,
   "type": "gros pas",
   "d2_mm": 1.74,
   "D1_mm": 1.567,
   "d3_mm": 1.509,
   "As_mm2": 2.07,
   "foret_mm": 1.6,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M2×0,25",
   "diametre_mm": 2,
   "pas_mm": 0.25,
   "type": "pas fin",
   "d2_mm": 1.838,
   "D1_mm": 1.729,
   "d3_mm": 1.693,
   "As_mm2": 2.45,
   "foret_mm": 1.75,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M2,5",
   "diametre_mm": 2.5,
   "pas_mm": 0.45,
   "type": "gros pas",
   "d2_mm": 2.208,
   "D1_mm": 2.013,
   "d3_mm": 1.948,
   "As_mm2": 3.39,
   "foret_mm": 2.05,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M2,5×0,35",
   "diametre_mm": 2.5,
   "pas_mm": 0.35,
   "type": "pas fin",
   "d2_mm": 2.273,
   "D1_mm": 2.121,
   "d3_mm": 2.071,
   "As_mm2": 3.7,
   "foret_mm": 2.15,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M3",
   "diametre_mm": 3,
   "pas_mm": 0.5,
   "type": "gros pas",
   "d2_mm": 2.675,
   "D1_mm": 2.459,
   "d3_mm": 2.387,
   "As_mm2": 5.03,
   "foret_mm": 2.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M3×0,35",
   "diametre_mm": 3,
   "pas_mm": 0.35,
   "type": "pas fin",
   "d2_mm": 2.773,
   "D1_mm": 2.621,
   "d3_mm": 2.571,
   "As_mm2": 5.61,
   "foret_mm": 2.65,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M4",
   "diametre_mm": 4,
   "pas_mm": 0.7,
   "type": "gros pas",
   "d2_mm": 3.545,
   "D1_mm": 3.242,
   "d3_mm": 3.141,
   "As_mm2": 8.78,
   "foret_mm": 3.3,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M4×0,5",
   "diametre_mm": 4,
   "pas_mm": 0.5,
   "type": "pas fin",
   "d2_mm": 3.675,
   "D1_mm": 3.459,
   "d3_mm": 3.387,
   "As_mm2": 9.79,
   "foret_mm": 3.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M5",
   "diametre_mm": 5,
   "pas_mm": 0.8,
   "type": "gros pas",
   "d2_mm": 4.48,
   "D1_mm": 4.134,
   "d3_mm": 4.019,
   "As_mm2": 14.18,
   "foret_mm": 4.2,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M5×0,5",
   "diametre_mm": 5,
   "pas_mm": 0.5,
   "type": "pas fin",
   "d2_mm": 4.675,
   "D1_mm": 4.459,
   "d3_mm": 4.387,
   "As_mm2": 16.12,
   "foret_mm": 4.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M6",
   "diametre_mm": 6,
   "pas_mm": 1,
   "type": "gros pas",
   "d2_mm": 5.35,
   "D1_mm": 4.917,
   "d3_mm": 4.773,
   "As_mm2": 20.12,
   "foret_mm": 5.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M6×0,75",
   "diametre_mm": 6,
   "pas_mm": 0.75,
   "type": "pas fin",
   "d2_mm": 5.513,
   "D1_mm": 5.188,
   "d3_mm": 5.08,
   "As_mm2": 22.03,
   "foret_mm": 5.2,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M8",
   "diametre_mm": 8,
   "pas_mm": 1.25,
   "type": "gros pas",
   "d2_mm": 7.188,
   "D1_mm": 6.647,
   "d3_mm": 6.466,
   "As_mm2": 36.61,
   "foret_mm": 6.8,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M8×1",
   "diametre_mm": 8,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 7.35,
   "D1_mm": 6.917,
   "d3_mm": 6.773,
   "As_mm2": 39.17,
   "foret_mm": 7.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M8×0,75",
   "diametre_mm": 8,
   "pas_mm": 0.75,
   "type": "pas fin",
   "d2_mm": 7.513,
   "D1_mm": 7.188,
   "d3_mm": 7.08,
   "As_mm2": 41.81,
   "foret_mm": 7.2,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M10",
   "diametre_mm": 10,
   "pas_mm": 1.5,
   "type": "gros pas",
   "d2_mm": 9.026,
   "D1_mm": 8.376,
   "d3_mm": 8.16,
   "As_mm2": 57.99,
   "foret_mm": 8.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M10×1,25",
   "diametre_mm": 10,
   "pas_mm": 1.25,
   "type": "pas fin",
   "d2_mm": 9.188,
   "D1_mm": 8.647,
   "d3_mm": 8.466,
   "As_mm2": 61.2,
   "foret_mm": 8.8,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M10×1",
   "diametre_mm": 10,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 9.35,
   "D1_mm": 8.917,
   "d3_mm": 8.773,
   "As_mm2": 64.49,
   "foret_mm": 9.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M10×0,75",
   "diametre_mm": 10,
   "pas_mm": 0.75,
   "type": "pas fin",
   "d2_mm": 9.513,
   "D1_mm": 9.188,
   "d3_mm": 9.08,
   "As_mm2": 67.88,
   "foret_mm": 9.2,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M12",
   "diametre_mm": 12,
   "pas_mm": 1.75,
   "type": "gros pas",
   "d2_mm": 10.863,
   "D1_mm": 10.106,
   "d3_mm": 9.853,
   "As_mm2": 84.27,
   "foret_mm": 10.2,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M12×1,5",
   "diametre_mm": 12,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 11.026,
   "D1_mm": 10.376,
   "d3_mm": 10.16,
   "As_mm2": 88.13,
   "foret_mm": 10.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M12×1,25",
   "diametre_mm": 12,
   "pas_mm": 1.25,
   "type": "pas fin",
   "d2_mm": 11.188,
   "D1_mm": 10.647,
   "d3_mm": 10.466,
   "As_mm2": 92.07,
   "foret_mm": 10.8,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M12×1",
   "diametre_mm": 12,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 11.35,
   "D1_mm": 10.917,
   "d3_mm": 10.773,
   "As_mm2": 96.1,
   "foret_mm": 11.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M14",
   "diametre_mm": 14,
   "pas_mm": 2,
   "type": "gros pas",
   "d2_mm": 12.701,
   "D1_mm": 11.835,
   "d3_mm": 11.546,
   "As_mm2": 115.44,
   "foret_mm": 12.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M14×1,5",
   "diametre_mm": 14,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 13.026,
   "D1_mm": 12.376,
   "d3_mm": 12.16,
   "As_mm2": 124.55,
   "foret_mm": 12.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M14×1,25",
   "diametre_mm": 14,
   "pas_mm": 1.25,
   "type": "pas fin",
   "d2_mm": 13.188,
   "D1_mm": 12.647,
   "d3_mm": 12.466,
   "As_mm2": 129.23,
   "foret_mm": 12.8,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M14×1",
   "diametre_mm": 14,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 13.35,
   "D1_mm": 12.917,
   "d3_mm": 12.773,
   "As_mm2": 134.0,
   "foret_mm": 13.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M16",
   "diametre_mm": 16,
   "pas_mm": 2,
   "type": "gros pas",
   "d2_mm": 14.701,
   "D1_mm": 13.835,
   "d3_mm": 13.546,
   "As_mm2": 156.67,
   "foret_mm": 14.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M16×1,5",
   "diametre_mm": 16,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 15.026,
   "D1_mm": 14.376,
   "d3_mm": 14.16,
   "As_mm2": 167.25,
   "foret_mm": 14.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M16×1",
   "diametre_mm": 16,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 15.35,
   "D1_mm": 14.917,
   "d3_mm": 14.773,
   "As_mm2": 178.17,
   "foret_mm": 15.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M18",
   "diametre_mm": 18,
   "pas_mm": 2.5,
   "type": "gros pas",
   "d2_mm": 16.376,
   "D1_mm": 15.294,
   "d3_mm": 14.933,
   "As_mm2": 192.47,
   "foret_mm": 15.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M18×2",
   "diametre_mm": 18,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 16.701,
   "D1_mm": 15.835,
   "d3_mm": 15.546,
   "As_mm2": 204.18,
   "foret_mm": 16.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M18×1,5",
   "diametre_mm": 18,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 17.026,
   "D1_mm": 16.376,
   "d3_mm": 16.16,
   "As_mm2": 216.23,
   "foret_mm": 16.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M18×1",
   "diametre_mm": 18,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 17.35,
   "D1_mm": 16.917,
   "d3_mm": 16.773,
   "As_mm2": 228.63,
   "foret_mm": 17.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M20",
   "diametre_mm": 20,
   "pas_mm": 2.5,
   "type": "gros pas",
   "d2_mm": 18.376,
   "D1_mm": 17.294,
   "d3_mm": 16.933,
   "As_mm2": 244.79,
   "foret_mm": 17.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M20×2",
   "diametre_mm": 20,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 18.701,
   "D1_mm": 17.835,
   "d3_mm": 17.546,
   "As_mm2": 257.98,
   "foret_mm": 18.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M20×1,5",
   "diametre_mm": 20,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 19.026,
   "D1_mm": 18.376,
   "d3_mm": 18.16,
   "As_mm2": 271.5,
   "foret_mm": 18.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M20×1",
   "diametre_mm": 20,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 19.35,
   "D1_mm": 18.917,
   "d3_mm": 18.773,
   "As_mm2": 285.38,
   "foret_mm": 19.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M22",
   "diametre_mm": 22,
   "pas_mm": 2.5,
   "type": "gros pas",
   "d2_mm": 20.376,
   "D1_mm": 19.294,
   "d3_mm": 18.933,
   "As_mm2": 303.4,
   "foret_mm": 19.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M22×2",
   "diametre_mm": 22,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 20.701,
   "D1_mm": 19.835,
   "d3_mm": 19.546,
   "As_mm2": 318.05,
   "foret_mm": 20.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M22×1,5",
   "diametre_mm": 22,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 21.026,
   "D1_mm": 20.376,
   "d3_mm": 20.16,
   "As_mm2": 333.06,
   "foret_mm": 20.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M22×1",
   "diametre_mm": 22,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 21.35,
   "D1_mm": 20.917,
   "d3_mm": 20.773,
   "As_mm2": 348.4,
   "foret_mm": 21.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M24",
   "diametre_mm": 24,
   "pas_mm": 3,
   "type": "gros pas",
   "d2_mm": 22.051,
   "D1_mm": 20.752,
   "d3_mm": 20.319,
   "As_mm2": 352.5,
   "foret_mm": 21.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M24×2",
   "diametre_mm": 24,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 22.701,
   "D1_mm": 21.835,
   "d3_mm": 21.546,
   "As_mm2": 384.42,
   "foret_mm": 22.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M24×1,5",
   "diametre_mm": 24,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 23.026,
   "D1_mm": 22.376,
   "d3_mm": 22.16,
   "As_mm2": 400.89,
   "foret_mm": 22.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M24×1",
   "diametre_mm": 24,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 23.35,
   "D1_mm": 22.917,
   "d3_mm": 22.773,
   "As_mm2": 417.71,
   "foret_mm": 23.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M27",
   "diametre_mm": 27,
   "pas_mm": 3,
   "type": "gros pas",
   "d2_mm": 25.051,
   "D1_mm": 23.752,
   "d3_mm": 23.319,
   "As_mm2": 459.41,
   "foret_mm": 24.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M27×2",
   "diametre_mm": 27,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 25.701,
   "D1_mm": 24.835,
   "d3_mm": 24.546,
   "As_mm2": 495.74,
   "foret_mm": 25.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M27×1,5",
   "diametre_mm": 27,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 26.026,
   "D1_mm": 25.376,
   "d3_mm": 25.16,
   "As_mm2": 514.43,
   "foret_mm": 25.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M27×1",
   "diametre_mm": 27,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 26.35,
   "D1_mm": 25.917,
   "d3_mm": 25.773,
   "As_mm2": 533.46,
   "foret_mm": 26.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M30",
   "diametre_mm": 30,
   "pas_mm": 3.5,
   "type": "gros pas",
   "d2_mm": 27.727,
   "D1_mm": 26.211,
   "d3_mm": 25.706,
   "As_mm2": 560.59,
   "foret_mm": 26.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M30×3",
   "diametre_mm": 30,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 28.051,
   "D1_mm": 26.752,
   "d3_mm": 26.319,
   "As_mm2": 580.45,
   "foret_mm": 27.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M30×2",
   "diametre_mm": 30,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 28.701,
   "D1_mm": 27.835,
   "d3_mm": 27.546,
   "As_mm2": 621.2,
   "foret_mm": 28.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M30×1,5",
   "diametre_mm": 30,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 29.026,
   "D1_mm": 28.376,
   "d3_mm": 28.16,
   "As_mm2": 642.1,
   "foret_mm": 28.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M30×1",
   "diametre_mm": 30,
   "pas_mm": 1,
   "type": "pas fin",
   "d2_mm": 29.35,
   "D1_mm": 28.917,
   "d3_mm": 28.773,
   "As_mm2": 663.34,
   "foret_mm": 29.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M33",
   "diametre_mm": 33,
   "pas_mm": 3.5,
   "type": "gros pas",
   "d2_mm": 30.727,
   "D1_mm": 29.211,
   "d3_mm": 28.706,
   "As_mm2": 693.55,
   "foret_mm": 29.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M33×3",
   "diametre_mm": 33,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 31.051,
   "D1_mm": 29.752,
   "d3_mm": 29.319,
   "As_mm2": 715.62,
   "foret_mm": 30.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M33×2",
   "diametre_mm": 33,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 31.701,
   "D1_mm": 30.835,
   "d3_mm": 30.546,
   "As_mm2": 760.8,
   "foret_mm": 31.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M33×1,5",
   "diametre_mm": 33,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 32.026,
   "D1_mm": 31.376,
   "d3_mm": 31.16,
   "As_mm2": 783.91,
   "foret_mm": 31.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M36",
   "diametre_mm": 36,
   "pas_mm": 4,
   "type": "gros pas",
   "d2_mm": 33.402,
   "D1_mm": 31.67,
   "d3_mm": 31.093,
   "As_mm2": 816.72,
   "foret_mm": 32.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M36×3",
   "diametre_mm": 36,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 34.051,
   "D1_mm": 32.752,
   "d3_mm": 32.319,
   "As_mm2": 864.94,
   "foret_mm": 33.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M36×2",
   "diametre_mm": 36,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 34.701,
   "D1_mm": 33.835,
   "d3_mm": 33.546,
   "As_mm2": 914.53,
   "foret_mm": 34.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M36×1,5",
   "diametre_mm": 36,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 35.026,
   "D1_mm": 34.376,
   "d3_mm": 34.16,
   "As_mm2": 939.85,
   "foret_mm": 34.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M39",
   "diametre_mm": 39,
   "pas_mm": 4,
   "type": "gros pas",
   "d2_mm": 36.402,
   "D1_mm": 34.67,
   "d3_mm": 34.093,
   "As_mm2": 975.75,
   "foret_mm": 35.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M39×3",
   "diametre_mm": 39,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 37.051,
   "D1_mm": 35.752,
   "d3_mm": 35.319,
   "As_mm2": 1028.39,
   "foret_mm": 36.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M39×2",
   "diametre_mm": 39,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 37.701,
   "D1_mm": 36.835,
   "d3_mm": 36.546,
   "As_mm2": 1082.41,
   "foret_mm": 37.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M39×1,5",
   "diametre_mm": 39,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 38.026,
   "D1_mm": 37.376,
   "d3_mm": 37.16,
   "As_mm2": 1109.93,
   "foret_mm": 37.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M42",
   "diametre_mm": 42,
   "pas_mm": 4.5,
   "type": "gros pas",
   "d2_mm": 39.077,
   "D1_mm": 37.129,
   "d3_mm": 36.479,
   "As_mm2": 1120.91,
   "foret_mm": 37.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M42×4",
   "diametre_mm": 42,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 39.402,
   "D1_mm": 37.67,
   "d3_mm": 37.093,
   "As_mm2": 1148.92,
   "foret_mm": 38.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M42×3",
   "diametre_mm": 42,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 40.051,
   "D1_mm": 38.752,
   "d3_mm": 38.319,
   "As_mm2": 1205.98,
   "foret_mm": 39.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M42×2",
   "diametre_mm": 42,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 40.701,
   "D1_mm": 39.835,
   "d3_mm": 39.546,
   "As_mm2": 1264.42,
   "foret_mm": 40.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M42×1,5",
   "diametre_mm": 42,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 41.026,
   "D1_mm": 40.376,
   "d3_mm": 40.16,
   "As_mm2": 1294.15,
   "foret_mm": 40.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M45",
   "diametre_mm": 45,
   "pas_mm": 4.5,
   "type": "gros pas",
   "d2_mm": 42.077,
   "D1_mm": 40.129,
   "d3_mm": 39.479,
   "As_mm2": 1306.0,
   "foret_mm": 40.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M45×4",
   "diametre_mm": 45,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 42.402,
   "D1_mm": 40.67,
   "d3_mm": 40.093,
   "As_mm2": 1336.22,
   "foret_mm": 41.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M45×3",
   "diametre_mm": 45,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 43.051,
   "D1_mm": 41.752,
   "d3_mm": 41.319,
   "As_mm2": 1397.7,
   "foret_mm": 42.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M45×2",
   "diametre_mm": 45,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 43.701,
   "D1_mm": 42.835,
   "d3_mm": 42.546,
   "As_mm2": 1460.56,
   "foret_mm": 43.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M45×1,5",
   "diametre_mm": 45,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 44.026,
   "D1_mm": 43.376,
   "d3_mm": 43.16,
   "As_mm2": 1492.51,
   "foret_mm": 43.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M48",
   "diametre_mm": 48,
   "pas_mm": 5,
   "type": "gros pas",
   "d2_mm": 44.752,
   "D1_mm": 42.587,
   "d3_mm": 41.866,
   "As_mm2": 1473.15,
   "foret_mm": 43.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M48×4",
   "diametre_mm": 48,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 45.402,
   "D1_mm": 43.67,
   "d3_mm": 43.093,
   "As_mm2": 1537.67,
   "foret_mm": 44.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M48×3",
   "diametre_mm": 48,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 46.051,
   "D1_mm": 44.752,
   "d3_mm": 44.319,
   "As_mm2": 1603.56,
   "foret_mm": 45.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M48×2",
   "diametre_mm": 48,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 46.701,
   "D1_mm": 45.835,
   "d3_mm": 45.546,
   "As_mm2": 1670.85,
   "foret_mm": 46.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M48×1,5",
   "diametre_mm": 48,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 47.026,
   "D1_mm": 46.376,
   "d3_mm": 46.16,
   "As_mm2": 1705.01,
   "foret_mm": 46.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M52",
   "diametre_mm": 52,
   "pas_mm": 5,
   "type": "gros pas",
   "d2_mm": 48.752,
   "D1_mm": 46.587,
   "d3_mm": 45.866,
   "As_mm2": 1757.83,
   "foret_mm": 47.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M52×4",
   "diametre_mm": 52,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 49.402,
   "D1_mm": 47.67,
   "d3_mm": 47.093,
   "As_mm2": 1828.25,
   "foret_mm": 48.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M52×3",
   "diametre_mm": 52,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 50.051,
   "D1_mm": 48.752,
   "d3_mm": 48.319,
   "As_mm2": 1900.04,
   "foret_mm": 49.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M52×2",
   "diametre_mm": 52,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 50.701,
   "D1_mm": 49.835,
   "d3_mm": 49.546,
   "As_mm2": 1973.22,
   "foret_mm": 50.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M52×1,5",
   "diametre_mm": 52,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 51.026,
   "D1_mm": 50.376,
   "d3_mm": 50.16,
   "As_mm2": 2010.32,
   "foret_mm": 50.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M56",
   "diametre_mm": 56,
   "pas_mm": 5.5,
   "type": "gros pas",
   "d2_mm": 52.428,
   "D1_mm": 50.046,
   "d3_mm": 49.252,
   "As_mm2": 2030.02,
   "foret_mm": 50.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M56×4",
   "diametre_mm": 56,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 53.402,
   "D1_mm": 51.67,
   "d3_mm": 51.093,
   "As_mm2": 2143.96,
   "foret_mm": 52.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M56×3",
   "diametre_mm": 56,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 54.051,
   "D1_mm": 52.752,
   "d3_mm": 52.319,
   "As_mm2": 2221.65,
   "foret_mm": 53.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M56×2",
   "diametre_mm": 56,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 54.701,
   "D1_mm": 53.835,
   "d3_mm": 53.546,
   "As_mm2": 2300.72,
   "foret_mm": 54.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M56×1,5",
   "diametre_mm": 56,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 55.026,
   "D1_mm": 54.376,
   "d3_mm": 54.16,
   "As_mm2": 2340.77,
   "foret_mm": 54.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M60",
   "diametre_mm": 60,
   "pas_mm": 5.5,
   "type": "gros pas",
   "d2_mm": 56.428,
   "D1_mm": 54.046,
   "d3_mm": 53.252,
   "As_mm2": 2362.02,
   "foret_mm": 54.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M60×4",
   "diametre_mm": 60,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 57.402,
   "D1_mm": 55.67,
   "d3_mm": 55.093,
   "As_mm2": 2484.8,
   "foret_mm": 56.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M60×3",
   "diametre_mm": 60,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 58.051,
   "D1_mm": 56.752,
   "d3_mm": 56.319,
   "As_mm2": 2568.39,
   "foret_mm": 57.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M60×2",
   "diametre_mm": 60,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 58.701,
   "D1_mm": 57.835,
   "d3_mm": 57.546,
   "As_mm2": 2653.35,
   "foret_mm": 58.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M60×1,5",
   "diametre_mm": 60,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 59.026,
   "D1_mm": 58.376,
   "d3_mm": 58.16,
   "As_mm2": 2696.35,
   "foret_mm": 58.5,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M64",
   "diametre_mm": 64,
   "pas_mm": 6,
   "type": "gros pas",
   "d2_mm": 60.103,
   "D1_mm": 57.505,
   "d3_mm": 56.639,
   "As_mm2": 2675.97,
   "foret_mm": 58.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M64×4",
   "diametre_mm": 64,
   "pas_mm": 4,
   "type": "pas fin",
   "d2_mm": 61.402,
   "D1_mm": 59.67,
   "d3_mm": 59.093,
   "As_mm2": 2850.78,
   "foret_mm": 60.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M64×3",
   "diametre_mm": 64,
   "pas_mm": 3,
   "type": "pas fin",
   "d2_mm": 62.051,
   "D1_mm": 60.752,
   "d3_mm": 60.319,
   "As_mm2": 2940.26,
   "foret_mm": 61.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M64×2",
   "diametre_mm": 64,
   "pas_mm": 2,
   "type": "pas fin",
   "d2_mm": 62.701,
   "D1_mm": 61.835,
   "d3_mm": 61.546,
   "As_mm2": 3031.12,
   "foret_mm": 62.0,
   "norme": "ISO 724:1993"
  },
  {
   "designation": "M64×1,5",
   "diametre_mm": 64,
   "pas_mm": 1.5,
   "type": "pas fin",
   "d2_mm": 63.026,
   "D1_mm": 62.376,
   "d3_mm": 62.16,
   "As_mm2": 3077.07,
   "foret_mm": 62.5,
   "norme": "ISO 724:1993"
  }
 ],
 "gaz": [
  {
   "designation": "G 1/8",
   "diametre_exterieur_mm": 9.73,
   "filets_par_pouce": 28,
   "pas_mm": 0.907,
   "d2_mm": 9.15,
   "d1_mm": 8.57,
   "foret_mm": 8.8,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1/4",
   "diametre_exterieur_mm": 13.16,
   "filets_par_pouce": 19,
   "pas_mm": 1.337,
   "d2_mm": 12.3,
   "d1_mm": 11.45,
   "foret_mm": 11.8,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 3/8",
   "diametre_exterieur_mm": 16.66,
   "filets_par_pouce": 19,
   "pas_mm": 1.337,
   "d2_mm": 15.8,
   "d1_mm": 14.95,
   "foret_mm": 15.25,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1/2",
   "diametre_exterieur_mm": 20.95,
   "filets_par_pouce": 14,
   "pas_mm": 1.814,
   "d2_mm": 19.79,
   "d1_mm": 18.63,
   "foret_mm": 19.0,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 5/8",
   "diametre_exterieur_mm": 22.91,
   "filets_par_pouce": 14,
   "pas_mm": 1.814,
   "d2_mm": 21.75,
   "d1_mm": 20.59,
   "foret_mm": 21.0,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 3/4",
   "diametre_exterieur_mm": 26.44,
   "filets_par_pouce": 14,
   "pas_mm": 1.814,
   "d2_mm": 25.28,
   "d1_mm": 24.12,
   "foret_mm": 24.5,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 7/8",
   "diametre_exterieur_mm": 30.2,
   "filets_par_pouce": 14,
   "pas_mm": 1.814,
   "d2_mm": 29.04,
   "d1_mm": 27.88,
   "foret_mm": 28.25,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1",
   "diametre_exterieur_mm": 33.25,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 31.77,
   "d1_mm": 30.29,
   "foret_mm": 30.75,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1 1/8",
   "diametre_exterieur_mm": 37.9,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 36.42,
   "d1_mm": 34.94,
   "foret_mm": 35.3,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1 1/4",
   "diametre_exterieur_mm": 41.91,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 40.43,
   "d1_mm": 38.95,
   "foret_mm": 39.25,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1 3/8",
   "diametre_exterieur_mm": 44.32,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 42.84,
   "d1_mm": 41.36,
   "foret_mm": 41.7,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1 1/2",
   "diametre_exterieur_mm": 47.8,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 46.32,
   "d1_mm": 44.84,
   "foret_mm": 45.25,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 1 3/4",
   "diametre_exterieur_mm": 53.74,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 52.26,
   "d1_mm": 50.78,
   "foret_mm": 51.1,
   "norme": "ISO 228-1:2000"
  },
  {
   "designation": "G 2",
   "diametre_exterieur_mm": 59.61,
   "filets_par_pouce": 11,
   "pas_mm": 2.309,
   "d2_mm": 58.13,
   "d1_mm": 56.65,
   "foret_mm": 57.0,
   "norme": "ISO 228-1:2000"
  }
 ]
}