WD952-202105-感应淬火的自攻螺纹螺钉的机械性能要求-eng.pdf

WORLDWIDEFASTENERSTANDARD

WD9522021-05-20

MECHANICALANDPERFORMANCEREQUIREMENTSOF(010)THREADROLLINGSCREWSWITH

INDUCTIONHARDENEDPOINTS

1.SCOPE

Thisstandardspecifiestherequirementsforhighperformancethroughhardenedthreadrollingscrewswith

inductionhardenedpointsforuseinapplicationswherefastenertoughnessisaprimeconsideration.The

standardrelatestoTAPTITE2000®screwswiththeRadiusProfile™andstandard60degreethreadform

rangingfromsizesM5toM14.Notrecommendedforcastironduetoitslowductility.

FastenermechanicalpropertiesareinlinewithISO898-1propertyclass10.9.

Anadditional“XD”lubricantperWX100maybereleasedwiththefinishtoreduceinstallationtorqueor

unwantednoiseoninstallation.

2.REFERENCES

ISO262Generalpurposemetricscrewthreads–Selectedsizesforscrews,boltsandnuts

ISO898-1Mechanicalpropertiesoffasteners–Part1:Bolts,screwsandstuds.

ISO6157-3Fasteners–SurfaceDiscontinuities

ISO6507-1MetallicMaterials–VickersHardness,Part1:TestMethod

SAE/USCAR-8GrainFlowPatternforBoltsandScrews

WSS-M99A3-AEmbrittlementAvoidance

ES-DU5A-9661270-BASpecificationforAluminumColdFormedExtrusionswithT72HeatTreatTemper

ES-9L34A-1526590-ABColdformedextrusionperformanceinsteel

3.REQUIREMENTS

3.1.MATERIAL

Screwsmustbemadefromcoldheadingqualityfullykilled,finegrain,spheroidizedannealedsteel

wire.Materialmustmeetthechemicalcompositionlimitsforpropertyclass10.9perISO898Part1.

3.