Heavy-duty anchors designed for fastening applications in solid concrete. They feature a versatile fully threaded design and a corrosion resistant, one piece stainless steel clip. Supplied complete with nut and washer. Applications: 2 x 4's, sill plates, electrical equipment, and attaching structural supports to concrete, tilt-up construction, highway railsand posts, HVAC and plumbing systems, metal doors, and window frames.