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  3. ISO 965-2 - ISO general purpose metric screw threads -- Tolerances -- Part 2: Limits of sizes for general purpose external and internal screw threads - Medium quality

ISO 965-2 - ISO general purpose metric screw threads -- Tolerances -- Part 2: Limits of sizes for general purpose external and internal screw threads - Medium quality

Female thread - Series for coarse pitch thread

Quality tolerance: Medium

The length of the screw-thread: normal

Tolerance class: 5H for threads to M1,4; 6H for threads from M1,4


Thread The length of the screw-thread The mean diameter d2 The small diameter D1
from up to greatest least greatest least
M1 0,6 1,7 0,894 0,838 0,785 0,729
M1,2 0,6 1,7 1,094 1,038 0,985 0,929
M1,4 0,7 2 1,265 1,205 1,142 1,075
M1,6 0,8 2,6 1,458 1,373 1,321 1,221
M1,8 0,8 2,6 1,658 1,573 1,521 1,421
M2 1 3 1,830 1,740 1,679 1,567
M2,5 1,3 3,8 2,303 2,208 2,138 2,013
M3 1,5 4,5 2,775 2,675 2,599 2,459
M3,5 1,7 5 3,222 3,110 3,010 2,850
M4 2 6 3,663 3,545 3,422 3,242
M5 2,5 7,5 4,605 4,480 4,334 4,134
M6 3 9 5,500 5,350 5,153 4,917
M7 3 9 6,500 6,350 6,153 5,917
M8 4 12 7,348 7,188 6,912 6,647
M10 5 15 9,206 9,026 8,676 8,376
M12 6 18 11,063 10,863 10,441 10,106
M14 8 24 12,913 12,701 12,210 11,835
M16 8 24 14,913 14,701 14,210 13,835
M18 10 30 16,600 16,376 15,744 15,294
M20 10 30 18,600 18,376 17,744 17,294
M22 10 30 20,600 20,376 19,744 19,294
M24 12 36 22,316 22,051 21,252 20,752
M27 12 36 25,316 25,051 24,252 23,752
M30 15 45 28,007 27,727 26,771 26,211
M33 15 45 31,007 30,727 29,771 29,211
M36 18 53 33,702 33,402 32,270 31,670
M39 18 53 36.702 36,402 35,270 34,670
M42 21 63 39,392 39,077 37,799 37,129
M45 21 63 42,392 42,077 40,799 40,129
M48 24 71 45,087 44,752 43,297 42,587
M52 24 71 49,087 48,752 47,297 46,587
M56 28 85 52,783 52,428 50,796 50,046
M60 28 85 56,783 56,428 54,796 54,046
M64 32 95 60,478 60,103 58,305 57,505

Dimensions in millimeters>



External thread - Series for coarse pitch thread

Quality tolerance: Medium

The length of the screw-thread: normal

Tolerance class: 6h for threads to M1,4 including; 6 grams of threads over M1,4


Thread The length of the screw-thread The large diameter d The mean diameter d2 The radius of the bottom of the thread
od do greatest least greatest least leasta
M1 0,6 1,7 1,000 0,933 0,838 0,785 0,031
M1,2 0,6 1,7 1,200 1,133 1,038 0,985 0,031
M1,4 0,7 2 1,400 1,325 1,205 1,149 0,038
M1,6 0,8 2,6 1,581 1,496 1,354 1,291 0,044
M1,8 0,8 2,6 1,781 1,696 1,554 1,491 0,044
M2 1 3 1.981 1,886 1,721 1,654 0,050
M2,5 1,3 3,8 2,480 2,380 2,188 2,117 0,056
M3 1,5 4,5 2,980 2,874 2,655 2,580 0,063
M3,5 1,7 5 3,479 3,354 3,089 3,004 0,075
M4 2 6 3,978 3,838 3,523 3,433 0,088
M5 2,5 7,5 4,976 4,826 4,456 4,361 0,100
M6 3 9 5,974 5,794 5,324 5,212 0,125
M7 3 9 6,974 6,794 6,324 6,212 0,125
M8 4 12 7,972 7,760 7,160 7,042 0,156
M10 5 15 9,968 9,732 8,994 8,862 0,188
M12 6 18 11,966 11,701 10,829 10,679 0,219
M14 8 24 13,962 13,682 12,663 12,503 0,250
M16 8 24 15,962 15,682 14,663 14,503 0,250
M18 10 30 17,958 17,623 16,334 16,164 0,313
M20 10 30 19,958 19,623 18,334 18,164 0,313
M22 10 30 21,958 21,623 20,334 20,164 0,313
M24 12 36 23,952 23,577 22,003 21,803 0,375
M27 12 36 26,952 26,577 25,003 24,803 0,375
M30 15 45 29,947 29,522 27,674 27,462 0,438
M33 15 45 32,947 32,522 30,674 30,462 0,438
M36 18 53 35,940 35,465 33,342 33,118 0,500
M39 18 53 38,940 38,465 36,342 36,118 0,500
M42 21 63 41,937 41,437 39,014 38,778 0,563
M45 21 63 44,937 44,437 42,014 41,778 0,563
M48 24 71 47,929 47,399 44,681 44,431 0,625
M52 24 71 51,929 51,399 48,681 48,431 0,625
M56 28 85 55,925 55,365 52,353 52,088 0,688
M60 28 85 59,925 59,365 56,353 56,088 0,688
M64 32 95 63,920 63,320 60,023 59,743 0,750

Dimensions in millimeters



Female thread - Series for fine pitch thread

Quality tolerance: Medium

The length of the screw-thread: normal

Tolerance class: 6H


Thread Thread length Thread The mean diameter d2 The small diameter D1
od do greatest least greatest least
M8x1 3 9 7,500 7,350 7,153 6,917
M10x1 4 12 9,500 9,350 9,153 8,917
M10x1,25 4 12 9,348 9,188 8,912 8,647
M12x1,25 4,5 13 11,368 11,188 10,912 10,647
M12x1,5 4,5 13 11,216 11,026 10,676 10,376
M14x1,5 5.6 16 13,216 13,026 12,676 12,376
M16x1,5 5,6 16 15,216 15,026 14,676 14,376
M18x1,2 5,6 16 17,216 17,026 16,676 16,376
M18x2 5,6 16 16,913 16,701 16,210 15,835
M20x1,5 5,6 16 19,216 19,026 18,676 18,376
M20x2 5,6 16 18,913 18,701 18,210 17,835
M22x1,5 5,6 16 21,216 21,701 20,676 20,376
M22x2 5,6 16 20,913 20,701 20,210 19,835
M24x2 8,5 25 22,925 22,701 22,210 21,835
M27x2 8,5 25 25,925 25,701 25,210 24,835
M30x2 8,5 25 28,925 28,701 28,210 27,835
M33x2 8,5 25 31,925 31,701 31,210 30,835
M36x3 12 36 34,316 34,051 33,252 32,752
M39x3 12 36 37,316 37,051 36,252 35,752
M42x3 12 36 40,316 40,051 39,252 38,752
M45x3 12 36 43,316 43,051 42,252 41,752
M48x3 15 45 46,331 46,051 45,252 44,752
M52x4 19 56 49,717 49,402 48,270 47,670
M56x4 19 56 53,717 53,402 52,270 51,670
M60x4 19 56 57,717 57,402 56,270 55,670
M64x4 19 56 61,717 61,402 60,270 59,670

Dimensions in millimeters



External thread - Series for fine pitch thread

Quality tolerance: Medium

The length of the screw-thread: normal

Tolerance class: 6g


Thread The length of the screw-thread The large diameter d The mean diameter d2 The radius of the root of the thread
od do greatest least greatest least least
M8x1 3 9 7,974 7,794 7,324 7,212 0,125
M10x1 4 12 9,974 9,794 9,324 9,212 0,125
M10x1,25 4 12 9,972 9,760 9,160 9,042 0,156
M12x1,25 4,5 13 11,972 11,760 11,160 11,028 0,156
M12x1,5 4,5 13 11,968 11,732 10,994 10,854 0,188
M14x1,5 5,6 16 13,968 13,732 12,994 12,854 0,188
M16x1,5 5,6 16 15,968 15,732 14,994 14,854 0,188
M18x1,2 5,6 16 17,968 17,732 16,994 16,854 0,188
M18x2 5,6 16 17,962 17,682 16,663 16,503 0,250
M20x1,5 5,6 16 19,968 19,732 18,944 18,854 0,188
M20x2 5,6 16 19,962 19,682 18,663 18,503 0,250
M22x1,5 5,6 16 21,968 21,732 20,994 20,854 0,188
M22x2 5,6 16 21,962 21,682 20,663 20,503 0,250
M24x2 8,5 25 23,962 23,682 22,663 22,493 0,250
M27x2 8,5 25 26,962 26,682 25,663 25,493 0,250
M30x2 8,5 25 29,962 29,682 28,663 28,493 0,250
M33x2 8,5 25 32,962 32,682 31,663 31,493 0,250
M36x3 12 36 35,952 35,577 34,003 33,803 0,375
M39x3 12 36 38,952 38,577 37,003 36,803 0,375
M42x3 12 36 41,952 41,577 40,003 39,803 0,375
M45x3 12 36 44,952 44,577 43,003 42,803 0,375
M48x3 15 45 47,952 47,577 46,003 45,791 0,375
M52x4 19 56 51,940 51,465 49,342 49,106 0,500
M56x4 19 56 55,940 55,465 53,342 53,106 0,500
M60x4 19 56 59,940 59,465 57,342 57,106 0,500
M64x4 19 56 63,940 63,465 61,342 61,106 0,500

Dimensions in millimeters