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PIN962
DRN8140-2
GeneralpurposeISOmetricscrewthreads-Part1:
Nominalsizesfor1mmto68mm
diametercoarsepitchthreads
GeneralpurposeISOmetricscrewthreads—Part3:
Nominalsisesfor0,5mmfinepitch
threadswithdiametersfrom35mvto90mm
DINEN28839Mechanicalropeiesoffasteners-Bolts,screws,studsandnutsmadeofnon-ferrousmetalsPCSO8839:
1986）
DRNENISO898-1Mechanicalopeiesoffastenersmadeofcarbonsteelandalloysteel—Part1:
Boltsscrewsandstuds（ISO/DNS898-1:
1996a”
PINENISO2320PrevailingtorquetypesteelhexagonAuto—MechanicalandpeomancepropelierPCSO2320.1997）
DRNENISO3506-2Mechanicalpropelierofcorrosion-resistantstainlesssteelfasteners—Part2:
Note（ISO3506-2:
1997）
DRNISO965-1GeneralpurposeISOmetricscrewthreads—Tolerances—Part1:
Principlesandbasicdata（ISO965-1:
1998）
ISO6410-2:
1993Technicaldrawings—Screwthreadsandthreadedparts—Part2:
Threadinsets
BS4377:
1991SpecificationfortappingofholestoreceivewirethreaditselfPCSOmetricthreaded
3Typesanddimensions
Threadinsertsshallbemadefromhombicwidetoformaspring-typehelicalcofl.TheyareclassifiedintotypeAinserts,forM2toM39andM8x1toM39screwthreadsc.Figure1,andtypeBinseswiththeinternalcrosssectiontakingtheformofacentricpolygonandwithalockingfunction,forM2,5toM24andM81toM33x2screwthreads（cf.figure2.
NOTE:
Lockingisachievedbyanincreasedfrictionacontactinthethread,preventingtheboltintheconnec-tionfromworkingloose,thisresultinginanincreasedtorquewhenscrewinginthebolt.
Threadinsertsshallbeprovidedwithanotchjawshowninfigures1and2permittingremovalofthehangales
fitting.
1Notch
2Tang
2
Figure1:
TypeAthreadinsert
1
Notch
Figure2:
TypeBthreadinset,withlocking
function
3.1Nominallength
Therecommendednominallengthofathreadinletisafunctionoftheworkpiecematerialsandtheproperty
classoftheboltoftheyieldstrengthoftheboltmaterial（cf.table1）.
”）Atpresentatdraftstage.
Tensilestrengthofworpiecematerials
Nominallength,1foraboltpopeyclastyiedstrength,inNtmm2
ofbothmaterial,of
Upto150
Over150upto200
Over200upto250
5.8/400
2d
1,5d
8.8/640
10.9/900
12.9/1080
2,5d
Over250uptoTOO
）1d
）1,5d
OverTOOupto400
d
（1,5d）
Over400
1d
Figure:
Threadinned
1ThreadtoDIN8140-2
Tappedhole
Keytosymbols:
dthreadsize（nominaldiameters
›f1majordiameterofthreadinsetbeforeassembly
2minordiameteroftappedhole（guideievalues
‹nominallengthofthreadinsert（designvalues
2lengthofthreadinsertwhenfitted1-P）
3minimumdepthofcorehole
（4minimumlengtholtappedho!
e]orbindholesandclearanceho!
es{!
12
distanceofthreadinletfromworkpiecesurface（0,25Pto0,75PQ
maximumlengthofengagementwithhangnotremoved
Ppitch
Pare4
DIN8140-1:
3.2Coarsepitchthreads
Tab2:
Dieiosforinveti,corehaudtappedholes
（withecommededtheadsizes
The
size,p
Theadinse
Numbe
of
uns1）
Min.Max.
Corehope
Min.
TappedhopeAssembedegthstoDIN8140-2
M2
0,4
1,6d
3
2,9
4,9
2,6
28
2,1
5,3
G2
1,6
1,4
2,4
0,1
o
/
4
6,9
6,3
3,8
3,4
5
8,9
7,3
4.6
4,4
2,5
3,5
3,3
5,t
EG
2,05
1,8
s.ss
3,75
3,1
**.*
8,1
7,6
4,55
4,3
6,2S
10,5
8,85
6,25
5,
5,6
M3
0,5
3,9
4,0
3,2
5,8
2,3
!
4,5
to
6
8,7
5,5
7,5
11,1
103
5
7
6,8
M4
0,7
3,7
5,ț5
5,35
2
78
U4
30,2
6,1
9,8
2Â
8
8,4
11,8
23d
10
10,9
13,8
9,3
9
M2,5to
3,80,4
0,sd54,36,356,65Q94EG54,23,80,2
M5to
1,5d7,56,9
11,7
7,58,76Ț0,
9,7
\4,2
9,2
8.8
12,5
12,3
f6,7
11,3
M8
4,2
7,85
0,3
14,1
**•8
12
9,6
17,1
11
15
20,1
14
13,5
Seepage6for1）2）and3.continued）
Table2（continued）
Threadsieepd
Threadinset
Number
UFFIS1）
Corehole
TappedholeAssembledlengths
toDIN8140-2
US1,251d84,79,8510,18,414,dEN86,750,20,3
b#!
O
1,5d127,4
2d1610,6
d2013,5
18,2
22,2
264
1210,7510,20,9
1814,7514,2
2018,7518,2
M101,51d10512,112,510,517,3EG1057,80,4
M10to
1,5d158,1
22.3
1513,512,81,1
2d2011,227,32018,517,8
2,5d2514,232,3
M121,751d125,214,414,812,520,3EG1210,259,4
M12tO
1,5d188,4
2d2411,7
2,5d3014,7
26,3
32,3
38,3
1816,2515,41,3
2422,2521,4
3028,2527,4
M1621d166,519,019,416,525,dEG161413,10,5
Mlsto
1,d2410,d
2d3213,8
2,544017,5
ss,s
41,3
49,3
242221,11,5
323029,1
403837,1
M202,51d206,323,724,220,7531,2EG2017,516,30,6
M2Oto
1,5d3010
41,2
027,526,31,9
2d4013,751,2
4057,536,3
3Id246,228,629,124,7537,1EG242119,60,8
M24to
1,5d3610
49,1
61,1
363331,62,3
484543,6
33,5Jd30735,235,73145,2EG3026,524,80,9
fñ
30to
1,5d4511
2d6014,9
Seepage6for1）d2）and）.（continued）
60,2
75,2
4541,539,82,6
6056,554,8
8140-1:
Table2（concluded）
Table3:
Dimensionsforinsets,moreholesandlappedholes
（withthreadsizesnotrecommended）
Threadinsert
M27
27
7,1
32,2
32,7
27,75
40,1
24
22,6
0,8
1,5z/
40,5
11,4
53,6
37,5
36,1
g,3
54
15,4
67,1
51
49,6
33
7,8
38.8
34
48,2
29,5
27,8
0,9
49,5
12,2
64,7
u3a
46*'
*.*2,6
sd
66
16,5
81,2
62,560,8
M39
1#
39
7,7
45,1
45,0
40
55,
EN
3533,11
58.5
124
75,3
58,5
54,5
52,6
2#
166
94,8
74
72,1
turns1）
TappedholeAssembledlengthstoDRN8140-2
Thread
size
Seepage6for1）2）and.
size,
Threadiased
of
d2'
TappedholetoDRN8140-2
*
Threadsize“
'
2'
6'
dturns1）Min.Max.
Min.Min.Max.
M6•1
9,85
10,1
3
13,1
8•1
6,5
9,5
0,
16
12,9
21,1
14,5
20
25,1
19
18,5
MJ0x1
12,1
10,3
15,1
EGM10•1
8,5
16,3
25
20,7
30,1
2S
23,5
M10•1,25
10,4
16,2
EGM10x1,25
8,75
8,2
0.3
21,2
13,75
13,2
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