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