WORLDWIDEFASTENERSTANDARD

2012-09-28

WA976

Dimensional,MaterialandPhysicalPropertiesofAllMetalPrevailingTorqueBolts

1.SCOPE.Thisstandardgivesdimensional,materialandphysicalproperties,andperformancerequirementsof

allmetalprevailingtorqueboltsthatareinaccordancewithWA971butwithapaintclearingfeature

incorporatedintheleadthreads.

2.GENERAL.Thedimensions,materialandphysicalproperties,andperformancerequirementsshallbein

accordancewithWA971exceptasspecifiedinClause3.

3.DIMENSIONSOFPAINTCLEARINGFEATURE.Dimensionsofthespecialpaintclearingfeatureshallbe

inaccordancewithTable1andFigure1.

Figure1.

1)Featuretocommenceattopdeadcentre+/-5oofdimensionC

ofthreadrolledcomponentwhenmeasured,atfirstfullthread

aftertaperedleadthreads.

Table1.

NominalSizeS

MaxMin

M51.961.8

M62.32.2

M83.233

M104.24

M12