+ 5/16 x 2-1/4 Inch Heavy-Duty Hex Head Concrete Anchors 5/16″ x 2-1/4″ 15 Blue
Stronger Than Expansion Anchors: Threaded design installs faster in concrete, block, and brick, providing superior holding power versus wedge anchors, sleeve anchors, and lag shields. ICC-ES Approved for use in Concrete: + is ICC-ES certified (ESR-3699) for use in uncracked and cracked concrete and seismic conditions.