Det basaleSemspreassembledscrewandwasherisanothermajorfasteninginventionintroduced
afShakeproofthatchangedindustri' monteringmetoder. Alle typer af vaskemaskiner-koniske, flade, tand,
helicalandmanyothers-canbepreassembledtoalltypesofscrews.Themanyimportantadvantages
afscrewandwasherassemblieshavecontributedtotheirpopularitythroughtheyears:
Eliminatesmallpartshandlinganddroppedparts.
Insureproperpartsusage.
Lowerpurchasing, inventoryandassemblycosts.
Increaseassembly, efficiencyandproductivity.
Theconventionalflatwasher, toothwasherorhelicalwasherSemsmeetstheneedsofmostassembly
applications.FlatWasherSemsspanlargeholes, protectfragilesurfacesanddistributeload.External
toothlockwashersarethepreferredtoothlockwasherstyleforpreassemblyasthetaperedtwistedteeth
areonthelargestradiustoprovidemaximumtorsionalresistancetoremovalrotation.Theinternaltooth
lockwasherstyleisidealwhenthescrewheadissmall-suchasafillisterhead-andinapplicationswhere
itisdesirabletohidetheteeth-eitherforappearanceortoavoidsnaggingandscratching.
Helicalwashersareoftenusedonlargerdiameterscrewsandboltswherehightorquesorheavyloadsare
involvedandinhardenedsurfaceapplicationswhereconfinedspacemustbeaccommodated.
AwidevarietyofotherSemscombinationscanbeprovidedforapplicationsinvolvinghightorques, belastning
distribution, electricalgrounding, fragilematerials, wireterminationorthespanningoflargerholes.
Screwandwasherassembliesincreasetorsionalresistancetoremovalrotation, reducingpotentialloosening
ofthefastener.Semsassembliesnotonlyreducelooseningcausedbyvibrationbut, unlikethelocking
featuresincorporatedundersomescrewheadsoronsomescrewthreads, theyalsoprovideacompensating
springactionthatresistslooseningcausedbyheatcyclingandbytheindependentexpansionandcontraction
ofdifferentmaterialsthatmaymakeuptheassembly.
WashersproducedinShakeproofAssemblyComponentsA2LAapprovedfacilitiesassureconsistentquality,
serviceandsinglesourceaccountability.
Tråd-Ritecanpreassembleawidevarietyofwasherstojustaboutanytypeofscrewincludingmaskine
skruer, Tappingscrews, Tap / Rthreadrollingscrews, GXself-extrudingscrewsandothers.Shakeproof
producererSemsindiametersrangering fra kvindenummer2through3 / 8" andinlengthsfrom3 / 16" through7" ;.
Allconventionalheadstyles, drivesandpointsareavailable.