The Idh by St. Simons Round Head Surface Bolt with Decorative Guides is an ornamental heavy-duty surface bolt used to secure doors, windows, shutters, and cabinets. It features even tension and decorative guides with round head knob. Includes three strike plates for any application. 8”, 12”, 18”, 24”. Matte black, satin nickel, oil rubbed bronze and polished brass finishes.