Step up to designer styles and superior security with Kwikset Signature Series products. The 980 deadbolt is both tough and attractive. This single cylinder deadbolt can be locked or unlocked by a key on the outside, or the turn button on the inside. 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. The complementary Antique Brass finish offers a warm feel with deep accents in the contours of the product.