Passage: Passage door hardware has no locking mechanism. Both the interior and exterior handles are always free making it perfect for hallways, closet doors, and anywhere else a lock isn't needed. Passage door hardware can also be used in conjunction with a deadbolt to secure a back door or entrance. Features: Tested to exceed ANSI/BHMA Grade 3 security requirements Constructed of materials for durability and dependability Covered by Sure-Loc's 5 year finish and limited mechanical manufacturer warranties Fits all standard door preparations Product Technologies: Solid Brass Construction: This product begins with raw bars of solid brass which are heated, and pounded into specially made dies—producing a stronger, more substantial product. The difference between lesser metals and heat forged brass is noticeable the minute you hold it in your hands—solid brass is heavier, smoother, and naturally resists corrosion. Specifications: Backset: Adjustable 2-3/8" or 2-3/4" Cross Bore: 2-1/8" Edge Bore: 1" Door Thickness: 1-3/8" to 1-3/4" Handing: Reversible Left or Right Handle Length: 4-11/16" Handle Projection: 2-7/16" Trim Width: 2-7/16" Trim Height: 2-7/16" Latch Faceplate: Drive-In