Experience unmatched security with the Stone Harbor Hardware Grade 3 Contemporary Square Deadbolt. Designed for professional-grade reliability, this Matte Black deadbolt features an interchangeable thumb turn inside and keyway set on the exterior for easy operation. With ANSI/BHMA Grade 3 certification, it ensures maximum locking strength and surface finish durability.
  Built to last, this versatile deadbolt accommodates doors thickness from 1-1/8 to 1-3/4 inches, perfect for residential or multi-family applications. Its Matte Black finish complements any decor, while adjustable backset ensures even installation on uneven surfaces. The thumb turn operation offers a secure and intuitive locking mechanism for your peace of mind.