Cobra Anchors Parasleeve 445C Sleeve Anchor, 5/16 in Dia, 2-1/2 in L, 500 lb, Carbon Steel, 100/BX

The Parasleeve" is a one-step installation anchor that is easy and quick to install. It is a pre-assembled, all-purpose medium-duty anchor, that is offered in six head styles. More than 34 sizes are available, ranging from 1/4 x 5/8 in to 3/4 x 6-1/4 in.