Prime-Line U 9902 Swing Bar Lock for Hinged Swing-In Doors Secondary Security Lock for Door and Home Security, 3-7/8 in. Bar Length, Diecast Zinc Construction, White Finish (Single Pack)

Ideal Use: Provides secondary security on hinged inward-swinging doors while allowing safe viewing, limited opening, and ventilation without fully opening the door | Dimensions & Compatibility: Features a 3-7/8 in. bar length and 2-1/2 in. overall height; designed for residential and apartment-style inward-swinging door applications | Materials & Components: Durable diecast zinc construction with a white finish; includes hinged swing bar, catch, mounting hardware, and plastic shim spacers for installation | Key Features: Secondary door security, controlled door opening, visitor identification capability, child-safety installation option, durable construction, and easy installation | Fit Guidance: Verify door swing direction and mounting clearances before purchasing; compare dimensions with your door and frame configuration to ensure proper fit and operation