ISO Metric

ISO Metric Fine Thread, pitch 2

ISO metric threads have a 60° symmetric profile and are designated by M, the nominal diameter and, for fine threads, the pitch (e.g. M10 × 1).

Standard
DIN 13-7
Flank angle
60°
Sizes listed
128
Range
M 17.0 – M 300.0
Profile shape (schematic, not to scale)

Nominal Diameter mmPitch mmTapping Drill Size mm (D − P)Minor Diameter D1 mm
M 17.02.0015.014.84
M 18.02.0016.015.84
M 19.02.0017.016.84
M 20.02.0018.017.84
M 21.02.0019.018.84
M 22.02.0020.019.84
M 23.02.0021.020.84
M 24.02.0022.021.84
M 25.02.0023.022.84
M 26.02.0024.023.84
M 27.02.0025.024.84
M 28.02.0026.025.84
M 30.02.0028.027.84
M 32.02.0030.029.84
M 33.02.0031.030.84
M 34.02.0032.031.84
M 35.02.0033.032.84
M 36.02.0034.033.84
M 38.02.0036.035.84
M 39.02.0037.036.84
M 40.02.0038.037.84
M 42.02.0040.039.84
M 45.02.0043.042.84
M 48.02.0046.045.84
M 50.02.0048.047.84
M 52.02.0050.049.84
M 55.02.0053.052.84
M 56.02.0054.053.84
M 58.02.0056.055.84
M 60.02.0058.057.84
M 62.02.0060.059.84
M 64.02.0062.061.84
M 65.02.0063.062.84
M 68.02.0066.065.84
M 70.02.0068.067.84
M 72.02.0070.069.84
M 75.02.0073.072.84
M 76.02.0074.073.84
M 78.02.0076.075.84
M 80.02.0078.077.84
M 82.02.0080.079.84
M 85.02.0083.082.84
M 88.02.0086.085.84
M 90.02.0088.087.84
M 92.02.0090.089.84
M 95.02.0093.092.84
M 98.02.0096.095.84
M 100.02.0098.097.84
M 102.02.00100.099.84
M 105.02.00103.0102.84
M 108.02.00106.0105.84
M 110.02.00108.0107.84
M 112.02.00110.0109.84
M 115.02.00113.0112.84
M 118.02.00116.0115.84
M 120.02.00118.0117.84
M 122.02.00120.0119.84
M 125.02.00123.0122.84
M 128.02.00126.0125.84
M 130.02.00128.0127.84
M 132.02.00130.0129.84
M 135.02.00133.0132.84
M 138.02.00136.0135.84
M 140.02.00138.0137.84
M 142.02.00140.0139.84
M 145.02.00143.0142.84
M 148.02.00146.0145.84
M 150.02.00148.0147.84
M 152.02.00150.0149.84
M 155.02.00153.0152.84
M 158.02.00156.0155.84
M 160.02.00158.0157.84
M 162.02.00160.0159.84
M 165.02.00163.0162.84
M 168.02.00166.0165.84
M 170.02.00168.0167.84
M 172.02.00170.0169.84
M 175.02.00173.0172.84
M 178.02.00176.0175.84
M 180.02.00178.0177.84
M 182.02.00180.0179.84
M 185.02.00183.0182.84
M 188.02.00186.0185.84
M 190.02.00188.0187.84
M 192.02.00190.0189.84
M 195.02.00193.0192.84
M 198.02.00196.0195.84
M 200.02.00198.0197.84
M 202.02.00200.0199.84
M 205.02.00203.0202.84
M 208.02.00206.0205.84
M 210.02.00208.0207.84
M 212.02.00210.0209.84
M 215.02.00213.0212.84
M 218.02.00216.0215.84
M 220.02.00218.0217.84
M 222.02.00220.0219.84
M 225.02.00223.0222.84
M 228.02.00226.0225.84
M 230.02.00228.0227.84
M 232.02.00230.0229.84
M 235.02.00233.0232.84
M 238.02.00236.0235.84
M 240.02.00238.0237.84
M 242.02.00240.0239.84
M 245.02.00243.0242.84
M 248.02.00246.0245.84
M 250.02.00248.0247.84
M 252.02.00250.0249.84
M 255.02.00253.0252.84
M 258.02.00256.0255.84
M 260.02.00258.0257.84
M 262.02.00260.0259.84
M 265.02.00263.0262.84
M 268.02.00266.0265.84
M 270.02.00268.0267.84
M 272.02.00270.0269.84
M 275.02.00273.0272.84
M 278.02.00276.0275.84
M 280.02.00278.0277.84
M 282.02.00280.0279.84
M 285.02.00283.0282.84
M 288.02.00286.0285.84
M 290.02.00288.0287.84
M 292.02.00290.0289.84
M 295.02.00293.0292.84
M 298.02.00296.0295.84
M 300.02.00298.0297.84

Reference values only. Verify against the current edition of the governing standard before use in production drawings or manufacturing. Provided by Micro Components as a free engineering resource.