Also known as wedgeanchors,the base expands as you tighten the nut for a secure hold inconcrete.They'reoften used to anchormachinery.Pull-out strength and shear strength values are25%of the ultimatevalues.
Zinc-plated and zinc yellow-chromate plated steel anchors are corrosion resistant in wetenvironments.
ICC listedanchors are often required for newconstruction.Anchors listed for cracked concrete are often required in environments which may cause concrete to crack during the life of theanchor.