Best Seller | Prime-Line Security Door Mortise Double Lock in Gray | 1.25 H x 2.28 W x 0.69 D in | Wayfair K 5061 This is a double cylinder with a chrome finish. It is solid brass and has a 5 pin tumbler used on a variety of security screen door mortise locking devices. It has a Kwikset keyway. Being 2-9/32 in. long, it adjusts to most door thicknesses and is used... more | | $28.33 go to store |