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  3. ISO 965-5 - ISO general purpose metric screw threads -- Tolerances -- Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing

ISO 965-5 - ISO general purpose metric screw threads -- Tolerances -- Part 5: Limits of sizes for internal screw threads to mate with hot-dip galvanized external screw threads with maximum size of tolerance position h before galvanizing

ISO metric threads for general use - Tolerance - Part 5: Limit dimensions of internal threads, designed for mating with the external threads dip zinc-plated, with tolerance position h before plating - ISO 965-5



deviations

Thread Pitch P mm Tolerance class The mean diameter of internal thread The small diameter
ES pm El pm ES pm El pm
M10 1,5 6AZ +510 +330 +630 +330
6AX +490 +310 +610 +310
M12 1,75 6AZ +535 +335 +670 +335
6AX +565 +365 +700 +365
M14, M16 2 6AZ +552 +340 +715 +340
6AX +632 +420 +795 +420
M18, M20, M22 2,5 6AZ +574 +350 +800 +350
6AX +754 +530 +980 +530
M24, M27 3 6AZ +625 +360 +860 +360
6AX +905 +640 +1 140 +640
M30, M33 3,5 6AZ +650 +370 +930 +370
6AX +1 030 +750 +1 310 +750
M36, M39 4 6AZ +680 +380 +980 +380
6AX +1 160 +860 +1 460 +860
M42, M45 4,5 6AZ +705 +390 +1 060 +390
6AX +1 285 +970 +1 640 +970
M48, M52 5 6AZ +735 +400 +1 110 +400
6AX +1 415 +1 080 +1 790 +1 080
M56, M60 5,5 6AZ +765 +410 +1 160 +410
6AX +1 545 +1 190 +1 940 +1 190
M64 6 6AZ +795 +420 +1
220		 +420
6AX +1 675 +1 300 +2 100 +1 300


Limit dimensions of the internal thread tolerance class 6AZ


Dimensions in millimeters
Thread Thread length The large diameter of the smallestb The mean diameter a The small diameter c
od do greatest least greatest least
M10 5 15 10,330 9,536 9,356 9,006 8,706
M12 6 18 12,335 11,398 11,198 10,776 10,441
M14 8 24 14,340 13,253 13,041 12,550 12,175
M16 8 24 16,340 15,253 15,041 14,550 14,175
M18 10 30 18,350 16,950 16,726 16,094 15,644
M20 10 30 20,350 18,950 18,726 18,094 17,644
M22 10 30 22,350 20,950 20,726 20,094 19,644
M24 12 36 24,360 22,676 22,411 21,612 21,112
M27 12 36 27,360 25,676 25,411 24,612 24,112
M30 15 45 30,370 28,377 28,097 27,141 26,581
M33 15 45 33,370 31,377 31,097 30,141 29,581
M36 18 53 36,380 34,082 33,782 32,650 32,050
M39 18 53 39,380 37,082 36,782 35,650 35,050
M42 21 63 42,390 39,782 39,467 38,189 37,519
M45 21 63 45,390 42,782 42,467 41,189 40,519
M48 24 71 48,400 45,487 45,152 43,697 42,987
M52 24 71 52,400 49,487 49,152 46,697 46,987
M56 28 85 56,410 53,193 52,838 51,206 50,456
M60 28 85 60,410 57,193 56,838 55,206 54,456
M64 32 95 64,420 60,898 60,523 58,725 57,925

a Dimensions are used for internal threads nicked tap after plating.

b Relative to the ideal cylinder coaxially, which passes through the points where it is no longer required straightness hips.

c Dimensions define internal threads before plating or coating and removing debris, zinc.



Limit dimensions of the internal thread tolerance class 6AX

Thread thread length The large diameter of the smallest a The mean diameter
a 		The small diameterc
od do greatest least greatest least
M10 5 15 10,310 9,516 9,336 8,986 8,686
M12 6 18 12,365 11,428 11,228 10,806 10,471
M14 8 24 14,420 13,333 13,121 12,630 12,255
M16 8 24 16,420 15,333 15,121 14,630 14,255
M18 10 30 18,530 17,130 16,906 16,274 15,824
M20 10 30 20,530 19,130 18,906 18,274 17,824
M22 10 30 22,530 21,130 20,906 20,274 19,824
M24 12 36 24,640 22,956 22,691 21,892 21,392
M27 12 36 27,640 25,956 25,691 24,892 24,392
M30 15 45 30,750 28,757 28,477 27,521 26,961
M33 15 45 33,750 31,757 31,477 30,521 29,961
M36 18 53 36,860 34,562 34,262 33,130 32,530
M39 18 53 39,860 37,562 37,262 36,130 35,530
M42 21 63 42,970 40,362 40,047 38,769 38,099
M45 21 63 45,970 43,362 43,047 41.769 41,099
M48 24 71 49,080 46,167 45,832 44,377 43,667
M52 24 71 53,080 50,167 49,832 48,377 47,667
M56 28 85 57,190 53,973 53,618 51,986 51,236
M60 28 85 61,190 57,973 57,618 55,986 55,236
M64 32 95 65,300 61,778 61,403 59,605 58,805

a Dimensions are used for internal threads nicked tap after plating.

b Relative to the ideal cylinder coaxially, which passes through the points where it is no longer required straightness hips.

c Dimensions define internal threads before plating or coating and removing debris, zinc.