Hyper Tough Keyed Entry Single Cylinder Deadbolt delivers quality and security you can depend on. Operate the deadbolt mechanism by locking and unlocking with a key on the exterior and by a thumb-turn on the interior. Hyper Tough deadbolt provides maximum security with its pick, pry and bump resistant. It features a 1-inch deadbolt, drill resistant and anti-saw pins, and an anti-pry shield. The deadbolt fits most standard doors measuring 1-3/8" to 1-3/4" thick. The deadbolt is reversible; mount on the left or right-handed doors for suitability. The adjustable latch is ideal for doors with 2-3/8" or 2-3/4" backsets. The keyed entry deadbolt meets ANSI Grade 3 standard requirements. The modern style is the perfect addition to any home whether You're replacing a damaged or worn out deadbolt or starting anew. Designed to provide additional security to your commercial or residential exterior knob, lever or handle set and is best used for the front, back and side doors. Easy to install and comes in a two-pack to make changing multiple deadbolts a breeze.