【Polished Chrome Flush Bolt】The slide door locks are made of high quality 304 stainless steel and the surface has been polished chrome to make it more smooth, not easy to be oxidized and has strong corrosion resistance and can be used for a long time. 【Concealed Door Security Bolts】These flush bolts can be installed in the doorway which make the mechanical parts are completely hidden when the door is closed. This hidden style is easy to use and suits your modern decor. 【Security Locks for Doors】The door bolt locks comprise of a flat solid steel shoot running in a long continuous guide attached by the backplate., provide reliable protection against intrusion and provide sufficient strength and stability for any doors. 【Easy installation】Each door bolt lock is equipped with 4 anti-rust screws and 1 fastening seal. The screws are made of stainless steel and are available in two sizes. The long screw is 3 cm and the short is 2 cm to attach the gasket. 【Suitable for All Doors】The slide door lock set feature in securing doors and gates, suitable for all types of wooden doors and stainless steel doors, etc... Ideal choice for home security doors and interior doors., Manufacturer: N/