3/4" x 4" Zinc Plated Steel Wej-It Anchors WAS-363 (18 pcs.)

Diameter: 3/4"
Length: 4"
Material: Steel
Finish: Zinc
Drill Size: 3/4"
Type: Wedge Anchor
Application: Concrete|Stone

Box of 18.

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.