ISO Metric
ISO Metric Fine Thread, pitch 4
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 13-9
- Flank angle
- 60°
- Sizes listed
- 108
- Range
- M 40.0 – M 300.0
| Nominal Diameter M | Pitch mm | Tapping Drill Size mm (D − P) | Minor Diameter D1 mm |
|---|---|---|---|
| M 40.0 | 4.00 | 36.0 | 35.67 |
| M 42.0 | 4.00 | 38.0 | 37.67 |
| M 45.0 | 4.00 | 41.0 | 40.67 |
| M 48.0 | 4.00 | 44.0 | 43.67 |
| M 50.0 | 4.00 | 46.0 | 45.67 |
| M 52.0 | 4.00 | 48.0 | 47.67 |
| M 55.0 | 4.00 | 51.0 | 50.67 |
| M 56.0 | 4.00 | 52.0 | 51.67 |
| M 58.0 | 4.00 | 54.0 | 53.67 |
| M 60.0 | 4.00 | 56.0 | 55.67 |
| M 62.0 | 4.00 | 58.0 | 57.67 |
| M 64.0 | 4.00 | 60.0 | 59.67 |
| M 65.0 | 4.00 | 61.0 | 60.67 |
| M 68.0 | 4.00 | 64.0 | 63.67 |
| M 70.0 | 4.00 | 66.0 | 65.67 |
| M 72.0 | 4.00 | 68.0 | 67.67 |
| M 75.0 | 4.00 | 71.0 | 70.67 |
| M 76.0 | 4.00 | 72.0 | 71.67 |
| M 78.0 | 4.00 | 74.0 | 73.67 |
| M 80.0 | 4.00 | 76.0 | 75.67 |
| M 82.0 | 4.00 | 78.0 | 77.67 |
| M 85.0 | 4.00 | 81.0 | 80.67 |
| M 88.0 | 4.00 | 84.0 | 83.67 |
| M 90.0 | 4.00 | 86.0 | 85.67 |
| M 92.0 | 4.00 | 88.0 | 87.67 |
| M 95.0 | 4.00 | 91.0 | 90.67 |
| M 98.0 | 4.00 | 94.0 | 93.67 |
| M 100.0 | 4.00 | 96.0 | 95.67 |
| M 102.0 | 4.00 | 98.0 | 97.67 |
| M 105.0 | 4.00 | 101.0 | 100.67 |
| M 108.0 | 4.00 | 104.0 | 103.67 |
| M 110.0 | 4.00 | 106.0 | 105.67 |
| M 112.0 | 4.00 | 108.0 | 107.67 |
| M 115.0 | 4.00 | 111.0 | 110.67 |
| M 118.0 | 4.00 | 114.0 | 113.67 |
| M 120.0 | 4.00 | 116.0 | 115.67 |
| M 122.0 | 4.00 | 118.0 | 117.67 |
| M 125.0 | 4.00 | 121.0 | 120.67 |
| M 128.0 | 4.00 | 124.0 | 123.67 |
| M 130.0 | 4.00 | 126.0 | 125.67 |
| M 132.0 | 4.00 | 128.0 | 127.67 |
| M 135.0 | 4.00 | 131.0 | 130.67 |
| M 138.0 | 4.00 | 134.0 | 133.67 |
| M 140.0 | 4.00 | 136.0 | 135.67 |
| M 142.0 | 4.00 | 138.0 | 137.67 |
| M 145.0 | 4.00 | 141.0 | 140.67 |
| M 148.0 | 4.00 | 144.0 | 143.67 |
| M 150.0 | 4.00 | 146.0 | 145.67 |
| M 152.0 | 4.00 | 148.0 | 147.67 |
| M 155.0 | 4.00 | 151.0 | 150.67 |
| M 158.0 | 4.00 | 154.0 | 153.67 |
| M 160.0 | 4.00 | 156.0 | 155.67 |
| M 162.0 | 4.00 | 158.0 | 157.67 |
| M 165.0 | 4.00 | 161.0 | 160.67 |
| M 168.0 | 4.00 | 164.0 | 163.67 |
| M 170.0 | 4.00 | 166.0 | 165.67 |
| M 172.0 | 4.00 | 168.0 | 167.67 |
| M 175.0 | 4.00 | 171.0 | 170.67 |
| M 178.0 | 4.00 | 174.0 | 173.67 |
| M 180.0 | 4.00 | 176.0 | 175.67 |
| M 182.0 | 4.00 | 178.0 | 177.67 |
| M 185.0 | 4.00 | 181.0 | 180.67 |
| M 188.0 | 4.00 | 184.0 | 183.67 |
| M 190.0 | 4.00 | 186.0 | 185.67 |
| M 192.0 | 4.00 | 188.0 | 187.67 |
| M 195.0 | 4.00 | 191.0 | 190.67 |
| M 198.0 | 4.00 | 194.0 | 193.67 |
| M 200.0 | 4.00 | 196.0 | 195.67 |
| M 202.0 | 4.00 | 198.0 | 197.67 |
| M 205.0 | 4.00 | 201.0 | 200.67 |
| M 208.0 | 4.00 | 204.0 | 203.67 |
| M 210.0 | 4.00 | 206.0 | 205.67 |
| M 212.0 | 4.00 | 208.0 | 207.67 |
| M 215.0 | 4.00 | 211.0 | 210.67 |
| M 218.0 | 4.00 | 214.0 | 213.67 |
| M 220.0 | 4.00 | 216.0 | 215.67 |
| M 222.0 | 4.00 | 218.0 | 217.67 |
| M 225.0 | 4.00 | 221.0 | 220.67 |
| M 228.0 | 4.00 | 224.0 | 223.67 |
| M 230.0 | 4.00 | 226.0 | 225.67 |
| M 232.0 | 4.00 | 228.0 | 227.67 |
| M 235.0 | 4.00 | 231.0 | 230.67 |
| M 238.0 | 4.00 | 234.0 | 233.67 |
| M 240.0 | 4.00 | 236.0 | 235.67 |
| M 242.0 | 4.00 | 238.0 | 237.67 |
| M 245.0 | 4.00 | 241.0 | 240.67 |
| M 248.0 | 4.00 | 244.0 | 243.67 |
| M 250.0 | 4.00 | 246.0 | 245.67 |
| M 252.0 | 4.00 | 248.0 | 247.67 |
| M 255.0 | 4.00 | 251.0 | 250.67 |
| M 258.0 | 4.00 | 254.0 | 253.67 |
| M 260.0 | 4.00 | 256.0 | 255.67 |
| M 262.0 | 4.00 | 258.0 | 257.67 |
| M 265.0 | 4.00 | 261.0 | 260.67 |
| M 268.0 | 4.00 | 264.0 | 263.67 |
| M 270.0 | 4.00 | 266.0 | 265.67 |
| M 272.0 | 4.00 | 268.0 | 267.67 |
| M 275.0 | 4.00 | 271.0 | 270.67 |
| M 278.0 | 4.00 | 274.0 | 273.67 |
| M 280.0 | 4.00 | 276.0 | 275.67 |
| M 282.0 | 4.00 | 278.0 | 277.67 |
| M 285.0 | 4.00 | 281.0 | 280.67 |
| M 288.0 | 4.00 | 284.0 | 283.67 |
| M 290.0 | 4.00 | 286.0 | 285.67 |
| M 292.0 | 4.00 | 288.0 | 287.67 |
| M 295.0 | 4.00 | 291.0 | 290.67 |
| M 298.0 | 4.00 | 294.0 | 293.67 |
| M 300.0 | 4.00 | 296.0 | 295.67 |
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.