ISO metric threads for general use - Tolerance - Part 4: Limit dimensions of external threads for hot dip coating after plating developed flush with the internal thread of tolerance position
deviations
| Thread | pitch mm | Tolerance class external thread 6az | ||||
| The mean diameter | The large diameter | The small diameter | ||||
| es pm | ei pm | es pm | ei pm | Deviations to determine the stress pm | ||
| M10 | 1,5 | -330 | -462 | -330 | -566 | -547 |
| M12 | 1,75 | -335 | -485 | -335 | -600 | -588 |
| M14.M16 | 2 | -340 | -500 | -340 | -620 | -629 |
| M18, M20, M22 | 2,5 | -350 | -520 | -350 | -685 | -711 |
| M24, M27 | 3 | -360 | -560 | -360 | -735 | -793 |
| M30, M33 | 3,5 | -370 | -582 | -370 | -795 | -875 |
| M36, M39 | 4 | -380 | -604 | -380 | -855 | -957 |
| M42.M45 | 4,5 | -390 | -626 | -390 | -890 | -1 040 |
| M48, M52 | 5 | -400 | -650 | -400 | -930 | -1 122 |
| M56, M60 | 5,5 | -410 | -675 | -410 | -970 | -1 204 |
| M64 | 6 | 鈥�420 | -700 | -420 | -1 020 | -1 286 |
Limit dimensions of the external thread tolerance class 6az
| Dimensions in mm | ||||||||
|---|---|---|---|---|---|---|---|---|
| Thread | thread length | The large diameter | The mean diameter | The small diameter (for the determination voltage) | The radius of curvature of the bottom | |||
| od | do | greatest | least | greatest | least | greatest | least | |
| M10 | 5 | 15 | 9,670 | 9,434 | 8,696 | 8,564 | 7,829 | 0,188 |
| M12 | 6 | 18 | 11,665 | 11,400 | 10,528 | 10,378 | 9,518 | 0,219 |
| M14 | 8 | 24 | 13,660 | 13,380 | 12,361 | 12,201 | 11,206 | 0,250 |
| M16 | 8 | 24 | 15,660 | 15,380 | 14,361 | 14,201 | 13,206 | 0,250 |
| M18 | 10 | 30 | 17,650 | 17,315 | 16,026 | 15,856 | 14,583 | 0,313 |
| M20 | 10 | 30 | 19,650 | 19,315 | 18,026 | 17,856 | 16,583 | 0,313 |
| M22 | 10 | 30 | 21,650 | 21,315 | 20,026 | 19,856 | 18,583 | 0,313 |
| M24 | 12 | 36 | 23,640 | 23,265 | 21,691 | 21,491 | 19,959 | 0,375 |
| M27 | 12 | 36 | 26,640 | 26,265 | 24,691 | 24,491 | 22,959 | 0,375 |
| M30 | 15 | 45 | 29,630 | 29,205 | 27,357 | 27,145 | 25,336 | 0,438 |
| M33 | 15 | 45 | 32,630 | 32,205 | 30,357 | 30,145 | 28,336 | 0,438 |
| M36 | 18 | 53 | 35,620 | 35,145 | 33,022 | 32,798 | 30,713 | 0,500 |
| M39 | 18 | 53 | 38,620 | 38,145 | 36,022 | 35,798 | 33,713 | 0,500 |
| M42 | 21 | 63 | 41,610 | 41,110 | 38,687 | 38,451 | 36,089 | 0,563 |
| M45 | 21 | 63 | 44,610 | 44,110 | 41,687 | 41,451 | 39,089 | 0,563 |
| M48 | 24 | 71 | 47,600 | 47,070 | 44,352 | 44,102 | 41,465 | 0,625 |
| M52 | 24 | 71 | 51,600 | 51,070 | 48,352 | 48,102 | 45,465 | 0,625 |
| M56 | 28 | 85 | 55,590 | 55,030 | 52,018 | 51,753 | 48,842 | 0,688 |
| M60 | 28 | 85 | 59,590 | 59,030 | 56,018 | 55,753 | 52,842 | 0,688 |
| M64 | 32 | 95 | 63,580 | 62,980 | 59,683 | 59,403 | 56,219 | 0,750 |