This set of 10 RED HEAD #50119 sleeve anchors is perfect for securing concrete structures. The 5/8" x 4 1/4" size ensures a strong hold, and the steel material makes them durable. These anchors are made in the United States and have a screw size of #5. They are ideal for use in business and industrial settings, and are part of the fasteners and hardware category. Get the job done right with these high-quality sleeve anchors.