Prime-Line E 2079 Sliding Door Lock and Keeper Set, 3-7/8 inch Hole Centers, Anti-Lift Protection, (single pack) , White Product Description This patio door lock is constructed from steel. It features a keeper that integrates into the lock body for positive anti-lift protection, and a steel hook. This lock is excellent for either wood or aluminum door applications. This style lock is used by Pennco and other manufacturers. From the Manufacturer This patio door lock is constructed from steel. It features a keeper that integrates into the lock body for positive anti-lift protection, and a steel hook. This lock is excellent for either wood or aluminum door applications. This style lock is used by Pennco and other manufacturers. Features All components of these mortise locks are constructed of stainless steel These locks come in a corrosion resistant, satin finish Designed for use with patio sliding doors, and can be used on units constructed of vinyl and wood Features an adjustable faceplate to allow for latch projection adjustment Easy to install with only a few simple tools For further dimensional and specification information, please see the line drawing USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.