Strike Anchors are designed for concrete applications only. For installation, anchor is inserted into pilot hole, nail is struck and expands the anchor, locking it in place. These anchors are removable with a claw hammer. No. 375665: Diameter: 1/2 In., Length: 3-1/2 In., Finish: Yellow Dichromate, Material: Steel, Color: Yellow, Head Type: Drive Pin, Pkg Qty: 25, Package Type: Box No. 375668: Diameter: 1/2 In., Length: 4-3/4 In., Finish: Yellow Dichromate, Material: Steel, Color: Yellow, Head Type: Drive Pin, Pkg Qty: 25, Package Type: Box
