Step up to designer styles and superior security with Kwikset Signature Series products. The 980 deadbolt is both tough and attractive. The crisp, clean appearance of the Satin Nickel finish adds to the overall look of the product and brings a modern feel. The double cylinder deadbolt is operated by a key on both sides. SmartKey Re-key Technology allows you to control who has access to your home. Re-key the lock yourself in seconds in 3 easy steps. Have you recently moved or had a child lose a key. It's time to re-key. SmartKey provides the highest level of residential security and features BumpGuard to protect against lock bumping.