Čo sú kotevné skrutky?

Kotevné skrutkyalsonamedfoundationboltsareboltswhichareusedtoconnectobjectsandstructuralelements
toconcrete.Theymaybeusedforeverythingfromboltingahome, factorysteelstructuretobuilddamor
výkonová stanica na upevnenie príslušenstva k vysokému strojovému zariadeniu. Výrobcovia liatinových výrobcov (Pring Metal) vyrábajú
anchorboltsaroundtheworld.Thereareseveraldifferentstylesavailablefordifferentapplications.When
ithasbeeninstalledcorrectly, theseboltsformaverystrong, solidconnectionwhichwilllastformore
ako desať rokov.

TheclassicAnchorboltsisacastinplaceanchorbolt.Theseboltsareinsertedintoconcretewhileitis
stillwet, withthethreadedpartoftheboltstickingup.Whentheconcretehardens, theboltissetinplace,
andobjectscanbebolteddownwiththeuseofanutwhichconnectstothethreadedsection.Theseanchor
boltsareoftenusedinnewconstructionprojects, wherethelocationofwallsandotherelementswhichneed
tobebolteddowniswellknown.

TheothertypeofAnchorboltsisaboltwhichinsertedintotheconcreteafteritsets.Theseboltsrequire
adrilledhole andthcancanefastenedinplace withepoxy, orawawgegeichexpandstotrapthebolt
whenitistightened.Forretrofittingandsimilartasks, thesetypesofanchorboltscanbeveryuseful,
althoughitisimportanttoinstallthemproperlyortheymayfail, sometimescatastrophically.