3/8"-16 Zinc Plated Steel Wedge Anchors.  Comes with Washer and Nut as shown.  Commonly used to secure solid concrete or masonry surfaces.  Instructions shown as second photo in photo gallery above.

Available in 2-1/4" to 3-3/4" lengths.

Diameter : 3/8"

Thread Size :  16 - UNC / Coarse Thread (Standard)

Length : Please select from drop down menu above.

System of Measurement : US / Inch

Material : Steel with Zinc Plating (CR+3, RoHS Compliant)