- ANSI Grade-3 Security Door Knob: Engineered for durability and safety, this door knob features an adjustable latch that accommodates 2-3/8" or 2-3/4" (60mm-70mm) backsets, fitting doors with thicknesses ranging from 1-3/8" to 1-3/4". - Simple Installation: Designed for hassle-free installation, this door knob comes with all necessary accessories. With just a standard tool set, one person can easily install it without professional help. - Modern Design: This door lock set combines contemporary aesthetics with functionality, making it suitable for both commercial and residential use. Ideal for exterior doors that require keyed entry and security, it is versatile enough for both left and right-handed doors. - Keyed Alike Convenience: The entry door knobs and single cylinder deadbolt lock set are keyed alike, providing a unified locking solution with the same key for added convenience. - Robust Material: Crafted from stainless steel and copper, this door knob and deadbolt set ensures strength and longevity, providing reliable security for your property. Use Scenarios: 1. Secure your home by installing this door knob on your front or back door, offering peace of mind with its robust locking mechanism. 2. Enhance the security of your office or commercial space by using this door lock set on entry points requiring reliable keyed access. This door knob and deadbolt lock set offers an effective solution for those seeking enhanced security, easy installation, and modern design while ensuring compatibility with a variety of door sizes and configurations.