uxcell Door Safety Press Button Spring Loaded Automatic Barrel Bolt 3.5" Product Name : Door Bolt;Material : Metal Bolt Dimension : 7.5 x 4.2 x 2.4cm / 3" x 1.7" x 0.94" (L*W*H);Total Length (Including Rod) : 9cm / 3.5" Mounting Hole Dia : 5mm / 0.2";Color : Silver Tone Net Weight : 73g Package Content : 1 x Door BoltSome Install Screws