Stainless Steel French Door Lock Concealed Slide Double Door Latch for Wood Composite Double DoorSpecificationMaterial: Stainless SteelFinish: Polished Brushed PlatingColor: Silver ToneMain Body Size: 200 x 22 x 1.5mm / 8 x 0.87 x 0.06 inch (L*W*Th)Main Body Height: 34.5mm / 1.36 inchStrike Plate Size: 37 x 22 x 1mm / 1.46 x 0.87 x 0.04 inch (L*W*Th)Bolt Diameter: 10mm / 0.39 inchMounting Hole Diameter: 4.5mm / 0.18"Installation Hole Distance: 26mm / 1.02 inchPacking List: 2 x Door Chain Bolt Lock; 2 x Strike Plate; 8 x ScrewsAdvantage1. Constructed from stainless steel, sturdy, wear-resistant, corrosion resistant and not easy to rust. You can use thickened material and solid insert lock plug head for more sturdy use.2. Hidden installation, which won't affect the doors' external integrity and image, matches various decoration styles.3. Flush bolt with the function of automatic holding spring to provide holding power in both retracted and extended positions. Concealed Slide Door Bolt Lock, press the button and push it up and down to open/close the door leaf.Instruction1. Figure out and mark where to install the flush bolt(usually on inactive leaf of double door opening) and drill grooves.2. Install the flush bolt on the door leaf and tighten with screws.3. Line up strikes on the door frame or on the floor and drill holes, then tighten with screws.4. Close the door, insert the pin into the hole, done.NOTE: Please confirm the size before purchasing.