• [Resist Hacksaw Attack] Five-ply laminated steel bolt with concealed hardened steel pin provides maximum security.
• [Silver / Black Color] Aluminum and bronze duronodic finished available.
• [A Complete Set] Includs hook bolt lock, AL & DU faceplate.
• [Commonly Used] Commonly used for storefront aluminum, steel, glass frame door of all kinds of commercial, industrial, and institutional buildings.
• [Against Corrosion] All parts are zinc plated for protection against corrosion.