Engineered for roller shutter applications, this Asec bullet lock delivers reliable security through a straightforward mechanical design. The round-faced profile accommodates standard shutter frames, keyed-to-differ. Installation involves welding separate housings to the frame perimeter, then inserting the lock's tail into the corresponding aperture on the door panel. Security features include key removal restricted to the locked position. Supplied with two keys and presented in retail-ready packaging suitable for point-of-sale environments. Housings purchased separately.