CRL Zinc Twist-In Door Lock Bulk (10) Pack - S4002B
Buying CRL Twist-In Door Locks in bulk packs will save you money by keeping them on hand. Using a simple twist action, the lock secures a sliding patio door in a closed or ventilating position with a 1/2 inch (12.7 millimeter) aluminum bolt. When the bolt is thrown, it prevents the door from sliding or being lifted off of its track. 10 locks per package.