Drives directly into dry wall ~ neat & secure. Easy, Fast, & Inexpensive! No Need to Mess With Anchors! Self Drilling continuous thread steel screw with space for wire. No stud needed, holds 30lbs in dry wall and up to 100lbs in a stud. Unique design holds D-Ring hangers or wire. Place directly into dry wall, plywood, brick or plaster, studs are not a problem. 1 1/4 LONG BLACK ONLY (BCD)