1/2″ x 3-1/2″ Zinc Plated Steel Wej-It Anchors (50 pcs.)
Diameter: 1/2″ Length: 3-1/2″ Material: Steel Finish: Zinc Drill Size: 1/2″ Type: Wedge Anchor Application: Concrete|Stone Box of 50. All mechanical bolts have a wedge arrangement at the end. Tightening the bolt results in a wedge being driven up against a sleeve. This jams the end of the bolt, and provides the strength.