GroupstandardVW01043

Issue2017-03

Class.No.:01512,60314

Descriptors:drivetype,threadedpart,triplesquareprofile,triplesquare

DriveTypesforThreadedParts

TripleSquareProfile

Preface

Theboltindustryofferstwo12-pointdrivesockettypes(triplesquareand12-pointsocket;seeDINISO1891

[1]

),whicharenotinterchangeable:

–thetriplesquareprofileasperthisstandard,basedonthreesquareprofilesarrangedatoff‐setsfromeachother,whichallowsinstallationandremoval

[2]

withinsertionatincrementsof30°duetothesocketengagementgeometry,

–the12-pointsocketprofile,basedontwohexagonprofilesarrangedatanoffsetfromeachoth‐er,whichallowsinstallationandremovalwithinsertionatincrementsof60°duetothesocketengagementgeometry.

Previousissues

VW01043:1997-09,2002-12,2006-01,2017-02

Changes

ThefollowingchangeshavebeenmadetoVW01043:2017-02:

–

Figure4

,

Figure5

,and

Table1

corrected:Becausedimensiont1'isincluded,theheadheighthwasdeleted;theheadheightisspecifiedasdimensionkintherelevantproductstandard

–Previousfootnotebto

table1

omitted;

section2.2

addedinstead

–ThefollowingchangeshavebeenmadeascomparedtoVolkswagenstandard

VW01043:2006-01:

–Prefaceand

section1"Scope"

updated

–

Section2

:Figuresupdatedandharmonizedwithproductstandards,engagementdepthsdif‐ferentiatedaccordingtobolthead,paragraphaddedabove

Table1

Alwaysusethelatestversionofthisstandard.

Thiselectronicallygeneratedstandardisauthenticandvalidwithoutsignature.

TheEnglishtranslationisbelievedtobeaccurate.Incaseofdiscrepancies,theGermanversionisaloneauthoritativeandcontrolling.

Page1of8

Technicalresponsibility

TheStandardsdepartment

EXDV/3

Matthias

Jesser

Tel.:

+495361948810

EXDV/3Tim

Hofmann

K-IPP

K-IPP/5

Uwe

Stüber

Tel.:

+495361929063

Tel.:

+495361927995

UweWiesner

Allrightsreserved.NopartofthisdocumentmaybeprovidedtothirdpartiesorreproducedwithoutthepriorconsentofoneoftheVolkswagenGroup’sStandardsdepartments.

?VolkswagenAktiengesellschaftVWNORM-2016-08a

Page2

VW01043:2017-03

–

Table1

:Nominalsizes4,6,and18broughtinlinewith

DIN34824

–

Section4"Testing"

changedand

Section6"Bibliography"

added

Contents

Page

1

Scope

2

2

Dimensionsandtolerances

3

3

Designation

8

4

Testing

8

5

Applicabledocuments

8

6

Bibliography

8

1Scope

Thisstandarddefinesthedimensionsforthetriplesquareprofileasadrivetypeofstandardizedandnon-standardizedfasteners.

NOTE:Thetriplesquareprofileisgenerallyselectedonenominalsizehigherthanthenominal

diameterofthefastenersothatthehighertighteningtorquescanbetransmittedinthecaseoftor‐que-to-yieldinstallationprocesses.

Example:M10–N12

Page3

VW01043:2017-03

2Dimensionsandtolerances

2.1Triplesquareprofileforsingledrive

See

figure1

to

figure5

and

table1

.Dimensionswithouttolerancespecificationasper

DINISO2768-1

–m.

Legend

d1Majordiameterofthetriplesquareprofile

d2Pitchdiameterofthetriplesquareprofile

d3Minordiameterofthetriplesquareprofile

ad1,maxtotheintersectionpoint

Figure1–Triplesquareprofile

Thedimensionsofthetriplesquareprofiletogetherwiththeassociatedrelevantheaddimensionsarepresentedin

figure2

to

figure5

and

table1

forvariousboltheadtypes.Thecountersinkangleof120°andtheconeangleof30°-15°correspondto

DIN34824

.

Figure2–Ovalhead

Figure3–Flathead

Page4

VW01043:2017-03

Figure4–PanheadFigure5–Panheadwithflange

Legend

CCountersinkdiameter

t1Engagementdepth

1)

,lowdesign(e.g.,inthecaseofovalhead,flathead)t1'Engagementdepth

1)

,deepdesign(e.g.,inthecaseofpanhead)

t2Totaldepth

yWallthicknessforovalheadandflathead

y'Wallthicknessforpanheadwith/withoutflange

1)Lowestpointoftheimpressedprofile

ThenominalsizesNandthediametersd1,d2,d3,andCcorrespondto

DIN34824

.Thedimensionst1,t1',t2,y,andy'arevaluesthathavebeenexaminedinpractice;deviationsfrom

table1

mustbedescribedingreaterdetailinproductstandardsandorderdocuments.

VW01043:2017-03

Table1–Nominalsizesanddimensions(singledrive)

Dimensionsinmillimeters

N

Nomi‐

nal

size

d1

Diameter

d2

Diameter

d3

Diameter

C

a)

Countersink

diameter

max.

t1

b)

t1'

b)

t2

max.

y

min.

y'

min.

Usablethreadsizesfor

Flathead

bolts

[4]

Ovalhead

bolts

[5]

Panheadbolts

c)

and

flangebolts

[6]

min.

max.

min.

max.

min.

max.

min.

max.

min.

max.

4

d)

3.62

3.72

3.28

3.35

3.06

3.18

3.82

1.6

1.9

—

—

2.4

1.0

—

M5

M4

—

5

d)

4.86

4.94

4.40

4.47

4.10

4.22

5.06

1.9

2.2

—

—

2.9

1.1

—

M6

M5

—

6

6.06

6.16

5.49

5.56

5.12

5.24

6.26

2.3

2.6

3.4

1.2

M8

e)

M8×1

M6

8

7.28

7.40

6.59

6.68

6.14

6.29

7.48

2.7

3.0

3.00

3.40

4.0

1.4

1.19

M10

e)

M10×1

M8

M8×1

M6

10

9.69

9.84

8.77

8.86

8.18

8.33

9.89

3.2

3.5

4.00

4.48

4.8

1.9

1.45

M12

M12×1.5

e)

M10

e)

M10×1

M8

e)

M8×1

12

11.51

11.70

10.42

10.53

9.72

9.87

11.81

3.7

4.0

5.00

5.48

5.6

2.2

2.02

M14

M14×1.5

e)

M12

M12×1.5

e)

M10

e)

M10×1

14

13.32

13.54

12.06

12.17

11.25

11.43

13.62

4.3

4.6

6.00

6.48

6.5

2.3

2.10

M16

M16×1.5

e)

M14

M14×1.5

e)

M12

M12×1.5

e)

16

15.73

15.99

14.24

14.35

13.28

13.46

16.03

5.1

5.4

7.00

7.58

7.6

2.6

2.34

—

M16

M16×1.5

e)

M14

M14×1.5

e)

18

16.94

17.18

15.33

15.44

14.30

14.48

17.24

6.0

6.3

8.00

8.58

8.7

—

3.23

—

—

M16

M16×1.5

e)

a)Cmin>d1,minandfreeofburrs

b)Fornon-standardizedbolts,asufficientresidualbasethicknessandtheresultingheadheightmustbedeterminedusingthenumericalsimulationtooloftheEXDV/3department,"StandardandMulti-UseParts."Youcanorderthenumericalsimulationtoolfrom

EXDV/3

andinstallitlocallyonyourcomputer.

Page5

c)UsableforboltssimilartoDIN6912

[8]

,DIN7984

[9]

,orDINENISO4762

[10]

andDINENISO7045

[11]

.

d)Forthisnominalsize,thedrivetypeasperVW01048

[7]

ispreferable.

e)Forthesamenominalthreaddiameters,thethreadsizesinboldfontarepreferable.

Page6

VW01043:2017-03

2.2Triplesquareprofilefordualdesign

Figure6

and

Table2

specifythedimensionsforthetriplesquareprofileinthecaseofatleasttwodrivetypesonthebolthead(dualdesignasperVW60424

[3]

).

Dimensionswithouttolerancespecificationasper

DINISO2768-1

–m.

Legend

CCountersinkdiameter

d1Majordiameterofthetriplesquareprofile

d2Pitchdiameterofthetriplesquareprofile

d3Minordiameterofthetriplesquareprofilet1,DEngagementdepth,dualdesign

t2,DTotaldepth,dualdesign

1Externaldrive(shownherewithahexagononthepanheadwithaflangeasanexam‐ple)

ad1,maxtotheintersectionpoint

Figure6–Triplesquareprofilefordualdesign

7

Table2–Nominalsizesanddimensions(dualdesign)

Dimensionsinmillimeters

N

Nominal

size

d1

Diameter

d2

Diameter

d3

Diameter

C

a)

Countersink

diameter

max.

b)

D

t1,

Nominal

dimen‐

sion

max.

min.

t2,D

Usablethreadsizesfor

Hexagonheadbolts

c)

and

flangebolts

[6]

min.

max.

min.

max.

min.

max.

min.

Nominal

dimen‐

sion

max.

5

d)

4.86

4.94

4.40

4.47

4.10

4.22

5.06

2.00

2.40

2.60

3.00

6

6.06

6.16

5.49

5.56

5.12

5.24

6.26

2.50

2.90

3.12

3.60

8

7.28

7.40

6.59

6.68

6.14

6.29

7.48

2.90

3.30

3.72

4.20

M6

10

9.69

9.84

8.77

8.86

8.18

8.33

9.89

3.70

4.18

4.82

5.30

M8

e)

M8×1

12

11.51

11.70

10.42

10.53

9.72

9.87

11.81

4.60

5.08

5.92

6.50

M10

e)

M10×1

14

13.32

13.54

12.06

12.17

11.25

11.43

13.62

5.40

5.88

7.02

7.60

M12

M12×1.5

e)

16

15.73

15.99

14.24

14.35

13.28

13.46

16.03

6.40

6.98

8.32

8.90

M14

M14×1.5

e)

18

16.94

17.18

15.33

15.44

14.30

14.48

17.24

7.30

7.88

9.42

10.00

M16

M16×1.5

e)

a)Cmin>d1,minandfreeofburrs

b)Forboltsofthedualdesign,theengagementdepthofthedrivewasreducedduetothecurrentlyavailableproductiontechnology.

VW01043:2017-03

c)Forhexagonheadboltsandnon-standardizedbolts,asufficientresidualbasethicknessandtheresultingheadheightmustbedeterminedusingthenumericalsimulationtooloftheEXDV/3department,"StandardandMulti-UseParts."Youcanorderthenumericalsimulationtoolfrom

EXDV/3

andinstallitlocallyonyourcomputer.

d)Forthisnominalsize,thedrivetypeasperVW01048

[7]

ispreferable.

Page

e)Forthesamenominalthreaddiameters,thethreadsizesinboldfontarepreferable.

Page8

VW01043:2017-03

3Designation

ExampleforthedesignationofatriplesquareprofileofnominalsizeN8:

TriplesquareVW01043–N8

4Testing

Thetriplesquareprofilemustbetestedwithgagesasper

VW12014

.

5Applicabledocuments

Thefollowingdocumentscitedinthisstandardarenecessarytoitsapplication.

SomeoftheciteddocumentsaretranslationsfromtheGermanoriginal.ThetranslationsofGer‐

mantermsinsuchdocumentsmaydifferfromthoseusedinthisstandard,resultinginterminologi‐calinconsistency.

StandardswhosetitlesaregiveninGermanmaybeavailableonlyinGerman.Editionsinotherlanguagesmaybeavailablefromtheinstitutionissuingthestandard.

VW12014

TripleSquareProfile;Go-PlugGagesforTripleSquareBolts

DIN34824