VW 11613-200908 eng 公制ISO螺纹精细公差等级的极限尺寸-外螺纹4h 内螺纹5H.pdf

GroupStandardVW11613

Issue2009-08

Class.No.:01814

Descriptors:metric,metricISOThread,thread,limitdimension,toleranceclass,internalthread,externalthread

MetricISOThread

LimitDimensionsforFineToleranceClass

ExternalThreads4h/InternalThreads5H

Previousissues

VW11613:1966-01,1985-10,2003-09

Changes

ThefollowingchangeshavebeenmadeascomparedtoVW11613:2003-09:

–Descriptorsupdated

–TolerancevaluesinTables1to4changedtomm

–Table1,threadsM39,pitchØmimimumdimensionchangedto36,262mm

–Table4,threadM19x0,75,tolerancevalueofthepitchØcorrected

–Technicalresponsibilitychanged

–Standardeditoriallyrevised

1Scope

ThenominalandlimitdimensionsinFigure1,Table1,Table2,Table3andTable4applytothe

brightfinalcondition.Inmostcases,toleranceclassmediumaccordingtoVW11610istheclass

whichisreleased.Thefinetoleranceclassrequiresspecialtoolsandgages;itmustthereforeonly

beapprovedinagreementwithEKDVandmustbespecifiedinthedrawing.

Thisstandardappliestothreadswithhighaccuracy(nolash).Thenarrowthreadtolerancesdonot

permitanyapplicationofelectrolyticsurfaceprotectionorzincflakecoating.Phosphatingispossible

onlyifthemanufacturingtoleranceisnotuseduptothezeroposition.

Checkstandardforcurrentissuepriortousage.Page1of15

Thiselectronicallygeneratedstandardisauthenticandvalidwithoutsignature.

TheEnglishtranslationisbelievedtobeaccurate.IncaseofdiscrepanciestheGermanversionshallgovern.

Numericalnotationacc.toISOpractice.

Techni